fhwa recording & coding guide for si&a - dec1995

8/20/2019 FHWA Recording & Coding Guide for SI&a - Dec1995

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FOREWORD

The Recor di ng and Codi ng Gui de f or t he St r uct ure I nvent or y and Appr ai salof t he Nat i on' s Br i dges ( Gui de) has been r evi sed sever al t i mes i n t hepast . Thi s l at est edi t i on r evi ses t he Gui de t o conver t al l of t he uni t s

of measur ement t o t he I nt er nat i onal System of Uni t s. Thi s revi sed Gui der epr esent s sever al year s of ef f or t by the Feder al Hi ghway Admi ni st r at i onwi t h the St ates' cooperat i on and comment s, both i ndvi dual l y and thr ought he AASHTO Subcommi t t ee on Br i dges and St r uct ures.

I ni t i al di st r i but i on of t he Gui de i s bei ng made di r ect l y t o each FHWAf i el d of f i ce f or di st r i but i on t o t he St at es. Addi t i onal copi es ar eavai l abl e f r om t he Br i dge Management Br anch (HNG- 33) of t he FHWA Br i dgeDi vi s i on.

Wi l l i am A. Weseman, Di r ect orOf f i ce of Engi neer i ng

Under t he Paper Wor k Reduct i on Act and CFR 1320 t heSt r uct ur e I nvent or y and Appr ai sal Sheet r epor t i ngr equi r ement s have been cl eared by OMB under 2125- 0501.


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TABLE OF CONTENTSPage

I NTRODUCTI ON viDEFI NI TI ON OF TERMS vi i i

DATA I TEMS1 Stat e Code 1

2 Hi ghway Agency Di st r i ct 13 Count y ( Par i sh) Code 14 Pl ace Code 25 I nvent ory Rout e 26 Feat ur es I nt er sect ed 57 Faci l i t y Car r i ed by St r uctur e 58 St r uct ure Number 69 Locat i on 6

10 I nvent ory Rout e, Mi ni mum Vert i cal Cl ear ance 611 Ki l omet er Poi nt 712 Base Hi ghway Net wor k 713 LRS I nvent or y Rout e, Subrout e Number 814 ( Reserved) 815 ( Reserved) 8

16 Lat i t ude 817 Longi t ude 918 ( Reserved) 919 Bypass, Det our Lengt h 1020 Tol l 1121 Mai nt enance Responsi bi l i t y 1222 Owner 1223 ( Reserved) 1224 ( Reserved) 1225 ( Reserved) 1226 Funct i onal Cl assi f i cat i on of I nvent or y Rout e 1327 Year Bui l t 1328 Lanes On and Under t he St r uct ure 1429 Aver age Dai l y Tr af f i c 1530 Year of Aver age Dai l y Tr af f i c 16

31 Desi gn Load 1632 Appr oach Roadway Wi dt h 1633 Br i dge Medi an 1834 Skew 1935 St r uct ur e Fl ared 1936 Tr af f i c Saf et y Feat ur es 1937 Hi st or i cal Si gni f i cance 2138 Navi gat i on Cont r ol 2139 Navi gat i on Vert i cal Cl ear ance 2240 Navi gat i on Hori zont al Cl ear ance 2241 St r uct ur e Open, Post ed, or Cl osed t o Tr af f i c 2242 Type of Ser vi ce 2343 St r uct ur e Type, Mai n 2444 St r uct ur e Type, Appr oach Spans 25

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45 Number of Spans i n Mai n Uni t 2646 Number of Approach Spans 2647 I nvent or y Rout e, Tot al Hor i zont al Cl ear ance 2648 Length of Maxi mum Span 2849 St r uct ur e Lengt h 28

50 Curb or Si dewal k Wi dths 3051 Br i dge Roadway Wi dth, Curb- t o- Curb 3252 Deck Wi dth, Out - t o- Out 3353 Mi ni mumVert i cal Cl ear ance Over Br i dge Roadway 3354 Mi ni mum Vert i cal Undercl ear ance 3355 Mi ni mum Lateral Undercl ear ance on Ri ght 3556 Mi ni mum Lateral Undercl ear ance on Lef t 3757 ( Reserved) 37

- - Condi t i on Rat i ngs 3758 Deck 3859 Superst r uct ur e 3960 Subst r uct ur e 3961 Channel and Channel Pr otect i on 4062 Cul ver t s 4163 Met hod Used t o Det ermi ne Oper at i ng Rat i ng 4264 Oper at i ng Rat i ng 4365 Met hod Used t o Det ermi ne I nvent or y Rat i ng 4466 I nvent ory Rat i ng 44

- - Appr ai sal Rat i ngs 4567 St r uct ur al Eval uat i on 4668 Deck Geomet r y 4869 Under cl ear ances, Ver t i cal and Hor i zont al 5270 Br i dge Post i ng 5571 Wat er way Adequacy 5672 Approach Roadway Al i gnment 5773 ( Reserved) 5874 ( Reserved) 5875 Type of Wor k 5876 Length of St r ucture I mpr ovement 60

77 ( Reserved) 6278 ( Reserved) 6279 ( Reserved) 6280 ( Reserved) 6281 ( Reserved) 6282 ( Reserved) 6283 ( Reserved) 6284 ( Reserved) 6285 ( Reserved) 6286 ( Reserved) 6287 ( Reserved) 6288 ( Reserved) 6289 ( Reserved) 6290 I nspect i on Date 6291 Desi gnated I nspect i on Fr equency 62

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92 Cr i t i cal Feat ur e I nspect i on 6393 Cr i t i cal Feat ur e I nspect i on Dat e 6494 Br i dge I mprovement Cost 6495 Roadway I mpr ovement Cost 6596 Tot al Pr oj ect Cost 65

97 Year of I mprovement Cost Est i mat e 6698 Border Br i dge 6699 Border Br i dge St r ucture Number 66

100 STRAHNET Hi ghway Desi gnat i on 67101 Par al l el St r uct ur e Desi gnat i on 67102 Di r ect i on of Tr af f i c 68103 Tempor ary St r ucture Desi gnat i on 68104 Hi ghway Syst em of t he I nvent ory Rout e 69105 Federal Lands Hi ghways 69106 Year Reconst r ucted 69107 Deck St r uct ure Type 70108 Wear i ng Sur f ace/ Prot ect i ve Syst em 70109 Aver age Dai l y Tr uck Traf f i c 71110 Desi gnated Nat i onal Network 72111 Pi er or Abut ment Prot ect i on ( f or Navi gat i on) 72112 NBI S Br i dge Lengt h 73113 Scour Cr i t i cal Br i dges 75114 Fut ur e Aver age Dai l y Traf f i c 77115 Year of Fut ur e Aver age Dai l y Traf f i c 77116 Mi ni mum Navi gat i on Vert i cal Cl earance 77

Vert i cal Li f t Br i dgeGENERAL 78

APPENDI X A St r uct ur e I nvent ory and Appr ai sal SheetAPPENDI X B Suf f i ci ency Rat i ng Formul a and Exampl eAPPENDI X C Nat i onal Br i dge I nspect i on St andardsAPPENDI X D Comment ar yAPPENDI X E NBI Recor d For mat

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I NTRODUCTI ON

The Recor di ng and Codi ng Gui de f or t he St r uct ure I nvent or y and Appr ai salof t he Nat i on' s Br i dges, her eaf t er r ef er r ed t o as t he Gui de, has beenr evi sed sever al t i mes i n t he past . Thi s l at est edi t i on r evi ses theGui de to conver t al l of t he uni t s of measur ement t o t he I nt er nat i onal

Syst em of Uni t s ( SI ) . I t al so pr ovi des mor e t hor ough and det ai l edgui dance i n eval uat i ng and codi ng speci f i c br i dge data. New i t ems havebeen added t o i ncl ude t he report i ng of Federal Lands Hi ghway Syst ems,each St at e' s exi st i ng l i near r ef er enci ng system ( LRS) , and t he met hodused t o determi ne t he l oad r at i ngs. Some i t ems i n t he Gui de have al sobeen expanded t o pr ovi de mor e def i ni t i ve and expl i ci t expl anat i ons andi nst r uct i ons f or codi ng. Fur t her , mor e basi c def i ni t i ons appl i cabl e t ot he i nst r uct i ons i n t he Gui de ar e pr ovi ded. The changes are based oncomment s r ecei ved on the pr evi ous Gui de and the met r i c versi on ( J anuary1994) dr af t Gui de. Thi s r evi sed Gui de shoul d be t horoughl y r evi ewed byeach i ndi vi dual i nvol ved wi t h t he Nat i onal Br i dge I nspect i on Progr am.

Thi s Gui de has been prepar ed f or use by t he St at es, Federal and ot heragenci es i n r ecordi ng and codi ng t he dat a el ement s t hat wi l l compr i set he Nat i onal Br i dge I nvent ory data base. By havi ng a compl ete andt horough i nvent ory, an accur ate r epor t can be made t o t he Congr ess ont he number and st ate of t he Nat i on' s br i dges. The Gui de al so pr ovi dest he data necessar y f or t he Federal Hi ghway Admi ni st r at i on ( FHWA) and t heMi l i t ary Traf f i c Management Command t o i dent i f y and cl assi f y t heSt r at egi c Hi ghway Cor r i dor Net wor k and i t ' s connect or s f or def ensepur poses.

The coded i t ems i n t hi s Gui de ar e consi dered t o be an i ntegral part oft he data base t hat can be used t o meet sever al Federal r eport i ngr equi r ement s, as wel l as par t of t he St ates' needs. These r equi r ement sar e set f or t h i n t he Nat i onal Br i dge I nspect i on St andar ds ( 23 CFR 650. 3)whi ch are i ncl uded as Appendi x C. A compl ete, t horough, accur ate, andcompat i bl e data base i s t he f oundat i on of an ef f ect i ve br i dge managementsyst em. Repor t s submi t t ed i n connect i on wi t h t he Hi ghway Br i dge

Repl acement and Rehabi l i t at i on Progr amand t he Nat i onal Br i dgeI nspect i on Pr ogr am al so ar e rel at ed t o thi s Gui de.

The AASHTO Manual f or Condi t i on Eval uat i on of Br i dges di scusses t hevar i ous i t ems of i nf or mat i on t hat ar e to be r ecor ded as par t of or i gi nalbr i dge r epor t s. That manual and t he Br i dge I nspect or ' s Tr ai ni ngManual / 90, wi t h suppl ement s, di scuss i nspect i on pr ocedur es and thepr eparat i on of det ai l ed r eport s about t he st r uct ur e component s. Theser epor t s wi l l be t he basi s f or r ecor di ng val ues f or many of t he dat ael ement s shown i n t he Gui de, par t i cul arl y those havi ng t o do wi t h t hecondi t i on or t he appr ai sal r at i ngs.

Some br i dge owner s are col l ect i ng br i dge condi t i on r at i ngs f or i t emsi ncl uded i n t hi s Gui de ( I t ems 58- Deck, 59- Super st r uct ur e, 60-Subst r uct ur e, and 62- Cul ver e) usi ng t he Amer i can Associ at i on of

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Hi ghway and Transpor t at i on Of f i ci al s' ( AASHTO) Gui de f or Commonl yRecogni zed ( CoRe) St r uct ur al El ement s. CoRe el ement i nspect i on r at i ngspr ovi de detai l ed condi t i on assessment s t hat can serve as i nputi nto a comprehensi ve br i dge management syst em ( BMS) . The FHWA haspr ovi ded br i dge owners wi t h a comput er progr amf or t r ansl at i ng br i dgecondi t i on data i n t he CoRe el ement f ormat t o Nat i onal Br i dge I nvent or y( NBI ) condi t i on r at i ngs f or t he pur pose of NBI dat a submi t t al t o FHWA.

The pur pose of t he program i s t o permi t br i dge i nspect or s t o r ecor dcondi t i on i nf or mat i on i n a f or mat t hat sat i sf i es bot h BMS and NBI dat acol l ect i on r equi r ement s.

The St r uct ure I nvent or y and Appr ai sal ( SI &A) Sheet and t he suf f i ci encyr at i ng f ormul a, wi t h exampl es, are i ncl uded as Appendi ces A and B,r espect i vel y. The SI &A sheet i s i nt ended t o be a t abul at i on of t heper t i nent el ement s of i nf or mat i on about an i ndi vi dual st r uct ur e. I t suse i s opt i onal , subj ect t o t he st at ement s i n t he pr ecedi ng par agr aph oft hi s I nt r oduct i on. I t i s i mpor t ant t o not e t hat t he SI &A Sheet i s notan i nspect i on f orm but merel y a summary sheet of br i dge data r equi r ed byt he FHWA t o ef f ect i vel y moni t or and manage a Nat i onal br i dge pr ogr am.

St ates, Federal and other agenci es are encour aged t o use t he codes andi nst r uct i ons i n t hi s Gui de. However , i t s di r ect use i s opt i onal ; eachagency may use i t s own code scheme pr ovi ded t hat t he data ar e di r ect l yt r ansl atabl e i nt o t he Gui de f ormat . When data are r equest ed by FHWA,t he f or mat wi l l be based on t he codes and i nst r uct i ons i n t hi s Gui de.An agency choosi ng t o use i t s own codes shal l pr ovi de f or t r ansl at i on orconver si on of i t s own codes i nt o t hose used i n t he Gui de. I n ot herwor ds, agenci es ar e r esponsi bl e f or havi ng t he capabi l i t y t o obt ai n,st or e, and r epor t cer t ai n i nf or mat i on about br i dges whet her or not t hi sGui de or t he SI &A Sheet i s used. Any r equest s by t he FHWA f orsubmi t t al s of t hese dat a wi l l be based on t he def i ni t i ons, expl anat i ons,and codes suppl i ed i n t he Gui de, t he AASHTO Manual f or Condi t i onEval uat i on of Br i dges and t he Br i dge I nspect or ' s Trai ni ng Manual / 90 pl ussuppl ement s.

The val ues provi ded i n t he t abl es or ot herwi se l i st ed i n t hi s Gui de ar e

f or r at i ng pur poses onl y. Cur r ent desi gn st andards must be used f orst r uct ur e desi gn or r ehabi l i t at i on. Al l possi bl e combi nat i ons of actualsi t e char acteri st i cs ar e not pr ovi ded i n t hi s Gui de. I f a speci alsi t uat i on not l i st ed i n t he Gui de i s encount er ed, t he eval uat i oncri t er i a cl osest t o t he actual si t e si t uat i on shoul d be used.

The i mpl ementat i on of t hi s Gui de may r equi r e some r est r uct ur i ng of anagency' s dat a base and suppor t sof t war e. I f so, i t i s suggest ed t hatt he agency consi der t he addi t i onal enhancement s t hat woul d be necessar yt o suppor t a br i dge management syst em.

Appendi x D i s a Comment ary t hat compar es, i t em by i t em, t he 1988 Gui det o t hi s Gui de. The Comment ary wi l l pr ovi de a r eady r ef er ence f or i t emchanges.

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DEFI NI TI ON OF TERMS

The def i ni t i ons of t er ms used i n t he Gui de ar e provi ded bel ow.

( 1) Br i dge. The Nat i onal Br i dge I nspect i on St andar ds publ i shed i n t heCode of Federal Regul at i ons ( 23 CFR 650. 3) gi ve t he f ol l owi ngdef i ni t i on:

A st r uct ur e i ncl udi ng suppor t s erect ed over a depr essi on or anobst r uct i on, such as wat er , hi ghway, or r ai l way, and havi ng a t r ackor passageway f or car r yi ng t r af f i c or ot her movi ng l oads, andhavi ng an openi ng measured al ong the center of t he r oadway of mor et han 20 f eet* between under copi ngs of abut ment s or spri ng l i nes ofarches, or ext r eme ends of openi ngs f or mul t i pl e boxes; i t may al soi ncl ude mul t i pl e pi pes, where t he cl ear di st ance between openi ngsi s l ess t han hal f of t he smal l er cont i guous openi ng.

* ( 6. 1 met er s)

( b) Cul ver t . A st r uct ur e desi gned hydr aul i cal l y t o t ake advant age ofsubmer gence t o i ncr ease hydr aul i c capaci t y. Cul ver t s, asdi st i ngui shed f r ombr i dges, are usual l y cover ed wi t h embankment andar e composed of st r uct ur al mat er i al ar ound t he ent i r e per i met er ,al t hough some ar e suppor t ed on spr ead f oot i ngs wi t h t he st r eambedser vi ng as the bot t om of t he cul ver t . Cul ver t s may qual i f y t o beconsi der ed "br i dge" l engt h.

( c) I nvent or y Rout e. The r out e f or whi ch t he appl i cabl e i nvent or y dat ai s t o be recor ded. The i nvent or y rout e may be on t he st r uct ur e orunder t he st r uct ur e. General l y i nvent or i es al ong a r out e ar e madef r om west t o east and sout h t o nor t h.

( d) Nat i onal Br i dge I nvent or y ( NBI ) . The aggr egat i on of st r uct ur ei nvent or y and appr ai sal dat a col l ect ed t o f ul f i l l t he requi r ement sof t he Nat i onal Br i dge I nspect i on St andar ds. Each St at e shal lpr epar e and mai nt ai n an i nvent or y of al l br i dges subj ect t o theNBI S.

( e) Nat i onal Br i dge I nvent ory ( NBI ) Record. Data whi ch has been codedaccor di ng t o t he Gui de f or each st r uct ur e car r yi ng hi ghway t r af f i cor each i nvent ory r out e whi ch goes under a st r uct ur e. These dataare f ur ni shed and st ored i n a compact al phanumer i c f ormat onmagnet i c t apes or di sks sui t abl e f or el ect r oni c dat a pr ocessi ng.

( f ) Nat i onal Br i dge I nspect i on St andar ds ( NBI S) . Feder al r egul at i onsest abl i shi ng r equi r ement s f or i nspect i on pr ocedur es, f r equency ofi nspect i ons, qual i f i cat i ons of per sonnel , i nspect i on r epor t s, andpr eparat i on and mai nt enance of a St ate br i dge i nvent ory. The NBI Sappl y to al l st r uctur es def i ned as br i dges l ocat ed on al l publ i cr oads.

( g) Publ i c Road. Any r oad under t he j ur i sdi ct i on of and mai nt ai ned bya publ i c aut hor i t y and open t o publ i c t r avel .

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( h) St r uct ur e I nvent or y and Appr ai sal ( SI &A) Sheet . The gr aphi c

r epr esent at i on of t he data r ecorded and st ored f or each NBI r ecor di n accor dance wi t h t hi s Gui de.

( i ) St r ategi c Hi ghway Corr i dor Network ( STRAHNET) . A syst em of hi ghwayswhi ch ar e st r at egi cal l y i mpor t ant t o t he def ense of t he Uni t ed

St at es. I t i ncl udes the I nt er st at e Hi ghways and 25, 215 ki l omet er sof ot her non- i nt er st at e hi ghways. The Mi l i t ar y Tr af f i c ManagementCommand Repor t SE 89- 4b- 27, St r at egi c Hi ghway Cor r i dor Network, J anuar y 1991, cont ai ns addi t i onal i nf or mat i on on STRAHNET.

( j ) STRAHNET Connect or s ar e r oads t hat connect mi l i t ar y i nst al l at i onsand por t s of embar kat i on t o t he STRAHNET. The connect or r out esr epr esent about 3, 042 ki l omet ers of r oads t hat compl ement STRAHNET.

( k) I ndi an Reser vat i on Road ( I RR) . A publ i c r oad t hat i s l ocat edwi t hi n or pr ovi des access t o an I ndi an r eser vat i on as descr i bed i n Ti t l e 23, U. S. C. , Sect . 101. The t er mi nus of a r oad provi di ng accesst o an I ndi an r eser vat i on or ot her I ndi an l and i s def i ned as t hepoi nt at whi ch t he r oad i nt er sect s wi t h a r oad f unct i onal l ycl assi f i ed as a col l ector or hi gher cl assi f i cat i on ( out si de t her eservat i on boundar y) i n bot h ur ban and r ur al ar eas. I n t he caseof access f r om an I nt er st at e Hi ghway, t he termi nus i s t he f i r sti nt er change out si de t he reser vat i on.

( l ) Land Management Hi ghway Syst em ( LMHS) . Consi st s of adj oi ni ng st ateand l ocal publ i c r oads t hat pr ovi de maj or publ i c access t o Bur eauof Land Management admi ni st ered publ i c l ands, r esour ces, andf aci l i t i es.

( m) For est Hi ghway ( FH) . A r oad, under t he j ur i sdi ct i on of , andmai nt ai ned by, a publ i c aut hor i t y and open t o publ i c t r avel ; whol l yor par t l y wi t hi n, or adj acent t o, and ser vi ng t he Nat i onal For estSyst em ( NFS) and whi ch i s necessary f or t he pr ot ect i on,admi ni st r at i on, and ut i l i zat i on of t he NFS and t he use and

devel opment of i t s r esour ces. ( 23 CFR 660) .

( n) For est Ser vi ce Devel opment Road. A f orest r oad whol l y under t he j ur i sdi ct i on of t he For est Servi ce, whi ch may be "open t o publ i ct r avel " . Br i dges on For est Ser vi ce Devel opment Roads whi ch are"open t o publ i c t r avel " ar e subj ect t o t he NBI S.

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( o) Base Hi ghway Net work. The Base Hi ghway Net work i ncl udes t he

t hr ough l ane ( mai nl i ne) por t i ons of t he NHS, r ur al / ur ban pr i nci palar t er i al syst em and r ur al mi nor art er i al syst em. Ramps, f r ont ager oads and ot her r oadways ar e not i ncl uded i n the Base Network.

( p) Hi ghway Per f ormance Moni t or i ng Syst em. The Hi ghway Per f ormance

Moni t or i ng Syst em ( HPMS) i s a database of uni ver se and sampl e datat hat descr i bes the nat i on' s publ i c r oad mi l eage. The dat a ar eannual l y updat ed and submi t t ed t o FHWA by the Stat e Hi ghwayAgenci es, Puer t o Ri co and t he Di st r i ct of Col umbi a. The uni ver sedat a pr ovi des some basi c char act er i st i cs of al l publ i c road mi l eagewhi l e t he sampl e of t he ar t er i al and col l ect or syst ems al l ows f orassessment of t he condi t i on, perf or mance, usage and addi t i onalchar act er i st i cs of t he nat i on' s maj or hi ghway systems.

( q) Conver si on of Numer i cal Dat a. Thr oughout t hi s Gui de t he f ol l owi ngconver si on f act or s ar e used:Conver t - f oot t o meter mul t i pl y by 0. 3048

- mi l e t o ki l omet er mul t i pl y by 1. 609- engl i sh t on t o met r i c t on mul t i pl y by . 9

( r ) Roundi ng and Tr uncat i ng of Numeri cal Data. Al l numeral val ues i nt hi s Gui de, except as speci f i cal l y not ed, wi l l f ol l ow st andar dr oundi ng cr i t er i a, t hat i s, 5 and above wi l l be r ounded up t o t henext hi gher uni t and 4 and bel ow wi l l be r ounded down t o the nextl ower uni t . Thi s i s appl i cabl e t o al l deci mal r oundi ngs. I ncertai n i tems where roundi ng may cause a safety hazard forcl earance, the numeri c measurements wi l l be truncated at theappropri ate deci mal pl ace. Thi s means t hat a f r act i onal por t i onl ess t han a whol e uni t wi l l be dr opped t o t he l ower whol e number ,f or exampl e 2. 88 woul d be t r uncat ed t o 2. 8 when usi ng tent h of amet er accur acy. Al l deci mal poi nt s ar e assumed i n t he l ocat i ons asspeci f i ed i n t he Gui de.

( s) Commonl y Recogni zed ( CoRe) St r uct ur al El ement s) . A gr oup of

st r uctural el ement s endorsed by AASHTO as a means of pr ovi di ng auni f or m basi s f or dat a col l ect i on f or any br i dge management system,t o enabl e t he shar i ng of data between St ates, and t o al l ow f or auni f or m t r ansl at i on of dat a t o NBI I t ems 58, 59, 60 and 62.

( t ) Br i dge management Syst em ( BMS) . A syst em desi gned t o opt i mi ze t heuse of avai l abl e r esour ces f or t he i nspect i on, mai nt enance,r ehabi l i t at i on and r epl acement of br i dges.

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DATA I TEMS

I t em 1 - St at e Code 3 di gi t s

The f i r st 2 di gi t s ar e t he Federal I nf or mat i on Pr ocessi ng Standar ds

( FI PS) code f or St at es, and t he thi r d di gi t i s t he FHWA r egi on code.( New J ersey and New Yor k wi l l r etai n an FHWA r egi on code of 2. )

Code State Code State014 Al abama 308 Mont ana020 Al aska 317 Nebraska049 Ar i zona 329 Nevada056 Arkansas 331 New Hampshi r e069 Cal i f orn 342 New J ersey088 Col or ado 356 New Mexi co091 Connect i 362 New York103 Del aware 374 Nor t h Carol i na113 Di st r i ct of Col umbi a 388 Nort h Dakot a124 Fl or i da 395 Ohi o134 Geor gi a 406 Okl ahoma159 Hawai i 410 Or egon160 I daho 423 Pennsyl vani a175 I l l i noi s 441 Rhode I sl and185 I ndi ana 454 Sout h Carol i na197 I owa 468 South Dakot a207 Kansas 474 Tennessee214 Kentucky 486 Texas226 Loui si ana 498 Ut ah231 Mai ne 501 Vermont243 Maryl and 513 Vi r gi ni a251 Massachuset t s 530 Washi ngt on265 Mi chi gan 543 West Vi r gi ni a275 Mi nnesot a 555 Wi sconsi n284 Mi ss i ss i ppi 568 Wyomi ng

297 Mi ssour i 721 Puert o Ri co

I t em 2 - Hi ghway Agency Di st r i ct 2 di gi t s

The hi ghway agency di st r i ct ( Stat e or Federal ) i n whi ch t he br i dge i sl ocat ed shal l be r epr esent ed by a 2- di gi t code. Exi st i ng di st r i ctnumbers shal l be used where di st r i ct s ar e i dent i f i ed by number. Wher edi st r i ct s are i dent i f i ed by name, a code number shal l be assi gned basedon an al phabet i cal or or gani zat i onal l i st i ng of t he di st r i cts.

I t em 3 - Count y ( Par i sh) Code 3 di gi t s

Count i es shal l be i dent i f i ed usi ng t he Feder al I nf or mat i on Pr ocessi ngSt andar ds ( FI PS) codes gi ven i n t he cur r ent ver si on of t he Census ofPopul at i on and Housi ng - Geogr aphi c I dent i f i cat i on Code Scheme.

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I t em 4 - Pl ace Code 5 di gi t s

Ci t i es, t owns, t ownshi ps, vi l l ages, and ot her census- desi gnat ed pl acesshal l be i dent i f i ed usi ng the Feder al I nf or mat i on Pr ocessi ng St andar ds( FI PS) codes gi ven i n t he cur r ent ver si on of t he Census of Popul at i onand Housi ng - Geogr aphi c I dent i f i cat i on Code Scheme. I f t her e i s noFI PS pl ace code, t hen code al l zer os.

I t em 5 - I nvent or y Rout e 9 di gi t s

The i nvent or y r oute i s a 9- di gi t code composed of 5 segments.

Segment Descr i pt i on Length

5A Recor d Type 1 di gi t5B Rout e Si gni ng Pr ef i x 1 di gi t5C Desi gnat ed Level of Ser vi ce 1 di gi t5D Rout e Number 5 di gi t s5E Di r ecti onal Suf f i x 1 di gi t

I t em 5A - Recor d Type 1 di gi t

Ther e ar e t wo t ypes of Nat i onal Br i dge I nvent or y r ecor ds: "on" and"under ". Code t he f i r st di gi t ( l ef t most ) usi ng one of t he f ol l owi ngcodes:

Code Descr i pt i on

1 Rout e car r i ed "on" t he st r uct ur e2 Si ngl e r out e goes "under " t he st r uct ur e

A t hr ough Z Mul t i pl e r out es go "under" t he st r uct ur e

A si gni f i es t he f i r st of mul t i pl e r out es under t he st r uctur e.B si gni f i es t he second of mul t i pl e r out es under t he st r uct ur e.Z si gni f i es 26 r out es under t he st r uct ur e.

"On" si gni f i es t hat t he i nvent or y r out e i s car r i ed "on" t he st r uct ur e.Each br i dge st r uct ur e car r yi ng hi ghway t r af f i c must have a r ecor di dent i f i ed wi t h a t ype code = 1 ( numer i c) . Al l of t he NBI dat a i t emsmust be coded, unl ess speci f i cal l y except ed, wi t h r espect t o t hest r uct ur e and t he i nvent or y r out e "on" i t .

"Under " si gni f i es t hat t he i nvent or y rout e goes "under " t he st r uct ur e.I f an i nvent or y rout e beneat h t he st r uct ur e i s a Feder al - ai d hi ghway, i sa STRAHNET rout e or connector or i s ot herwi se i mport ant , a recor d mustbe coded t o i dent i f y i t . The t ype code must be 2 or an al phabet i cl et t er A t hr ough Z. Code 2 f or a si ngl e r out e under t he st r uct ur e. I f2 or more rout es go under a st r uct ur e on separate roadways, t he code of2 shal l not be used. Code A, B, C, D, et c. consecut i vel y f or mul t i pl er out es on separ at e r oadways under t he same st r uct ure. STRAHNET r out esshal l be l i st ed f i r st . When t hi s i t em i s coded 2 or A t hr ough Z, onl yt he f ol l owi ng i t ems must be coded: I t ems 1, 3- 13, 16, 17, 19, 20, 26-30, 42, 43, 47- 49, 100- 104, 109 and 110. Al l other i t ems may r emai nbl ank.

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I t em 5D - Rout e Number 5 di gi t s

Code the rout e number of t he i nvent ory rout e i n t he next 5 posi t i ons. Thi s val ue shal l be r i ght j ust i f i ed i n t he f i el d wi t h l eadi ng zer osf i l l ed i n. ( See exampl es bel ow. )

I f concur r ent r out es are of t he same hi er ar chy l evel , denot ed by the

r out e si gni ng pr ef i x, t he l owest numbered r out e shal l be coded. Code00000 f or br i dges on r oads wi t hout r out e numbers.

I t em 5E - Di r ect i onal Suf f i x 1 di gi t

I n t he l ast posi t i on, code t he di r ect i onal suf f i x to t he r out e number oft he i nvent or y rout e when i t i s part of t he r out e number, usi ng one oft he f ol l owi ng codes:


0 Not appl i cabl e1 Nor t h2 East3 South4 West

I n some cases, l et t ers may be used wi t h rout e numbers and as part of t her out e number s and not t o i ndi cat e di r ect i on. I n such cases, t he l et t ershoul d be i ncl uded i n t he 5- posi t i on r out e number f i el d.

EXAMPLES: Recor d Code

I nter st at e 95, on 1 1 1 00095 0 111000950I nter st at e 70S, under 2 1 1 00070 3 211000703

St at e Hi ghway 104, Spur , under 2 3 4 00104 0 234001040

U. S. 30E Bypass , on 1 2 3 00030 2 123000302

Ci t y st r eet , on 1 5 0 00000 0 150000000Ramp f r om I - 81, under 2 1 7 00081 0 217000810

Count y Hi ghway 173 on 1 4 1 00173 0 141001730I nter st at e 84 under 2 1 1 00084 0 211000840

I nt er st at e 495 on 1 1 1 00495 0 111004950St at e Hwy 120 ( STRAHNET Rt e) under A 3 1 00120 0 A31001200Al t er nate Stat e Hwy 130 under B 3 2 00130 0 B32001300

Tunnel on I nter st at e 70 2 1 1 00070 0 211000700

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I t em 8 - St r uct ur e Number 15 di gi t s

I t i s r equi r ed t hat t he of f i ci al st r uctur e number be r ecor ded. I t i snot necessar y to code t hi s number accor di ng t o an ar bi t r ary nat i onalst andard. Each agency shoul d code t he st r uct ur e number accor di ng t o i t sown i nt ernal pr ocessi ng pr ocedur es. When r ecor di ng and codi ng f or t hi si t em and f ol l owi ng i t ems, any st r uct ur e or st r uct ur es wi t h a cl osed

medi an shoul d be consi dered as one st r uct ur e, not t wo. Cl osed medi ansmay have ei t her mount abl e or non- mount abl e cur bs or bar r i ers.

The st r uct ure number must be uni que f or each br i dge wi t hi n t he Stat e,and once est abl i shed shoul d pr ef er abl y never change f or t he l i f e of t hebr i dge. I f i t i s essent i al t hat st r uct ur e number ( s) must be changed,al l 15 di gi t s ar e t o be f i l l ed. For any st r uct ur e number changes, acompl ete cross r ef erence of cor r espondi ng "ol d" and "new" number s mustbe pr ovi ded t o t he FHWA Br i dge Di vi si on. The cr oss r ef er ence shal li ncl ude bot h a comput er t ape or di sket t e and a pr i nt ed l i st i ng i n t heFHWA r equi r ed f ormat .

The i dent i cal st r uct ure number must appear on t he "on" and al l "under"r ecor ds associ at ed wi t h a par t i cul ar st r uctur e. ( Ref er t o I t em 5 -I nvent or y Rout e) .

I t em 9 - Locat i on 25 di gi t s

Thi s i t em cont ai ns a narr at i ve descr i pt i on of t he br i dge l ocat i on. I ti s r ecommended t hat t he l ocat i on be keyed t o a di st i ngui shabl e f eat ur eon an of f i ci al hi ghway depart ment map such as r oad j unct i ons andt opogr aphi cal f eat ur es. Thi s i t em shal l be l ef t j ust i f i ed wi t houtt rai l i ng zeros .

EXAMPLES:

6 km SW. OF RI CHMOND3. 5 km S. OF J CT. SR 69

I t em 10 - I nvent or y Rout e, Mi ni mum Ver t i cal Cl ear ance 4 di gi t s( XX. XX meters)

Code t he mi ni mum ver t i cal cl ear ance over t he i nvent or y r out e i dent i f i edi n I t em 5, whet her t he r out e i s "on" t he st r uct ur e or "under " t hest r uct ur e. The mi ni mum cl ear ance f or a 3- meter wi dt h of t he pavement ort r avel ed par t of t he roadway wher e the cl ear ance i s t he gr eat est shal lbe recor ded and coded as a 4- di gi t number t r uncated t o t he hundr edt h ofa meter ( wi t h an assumed deci mal poi nt ) . For st r uct ur es havi ng mul t i pl eopeni ngs, cl ear ance f or each openi ng shal l be r ecor ded, but onl y t hegr eatest of t he "mi ni mum cl ear ances" f or t he t wo or more openi ngs shal lbe coded r egar dl ess of t he di r ect i on of t r avel . Thi s woul d be t hepr act i cal maxi mum cl ear ance. When no r est r i ct i on exi st s or when t her est r i ct i on i s 30 met er s or gr eat er , code 9999. Codi ng of act ualcl earances bet ween 30. 0 and 99. 99 met ers t o an exact measurement i sopt i onal .

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I t em 11 - Ki l omet er poi nt ( XXXX. XXX) 7 di gi t s

The l i near r ef er enci ng syst em ( LRS) ki l omet er poi nt i s used t o est abl i sht he l ocat i on of t he br i dge on t he Base Hi ghway Network ( see I t em12) .I t must be f r omt he same LRS I nvent ory Rout e and ki l ometerpoi nt syst emas r eport ed i n t he Hi ghway Per f ormance Moni t or i ng Syst em ( HPMS) . Theki l omet er poi nt coded i n t hi s i t em di r ectl y r el at es t o I t em 13 - LRS

I nvent ory Rout e, Subrout e Number .

Thi s i t em must be coded f or al l st r uct ures l ocat ed on or overpassi ng t heBase Hi ghway Network. Code a 7- di gi t number t o r epr esent t he LRSki l omet er - poi nt di st ance i n ki l omet er s t o t he near est t housandt h ( wi t han assumed deci mal poi nt ) . For st r uct ur es carr yi ng t he LRS I nvent oryRout e, code t he ki l omet er poi nt at t he begi nni ng of t he st r uct ur e ( i . e.t he l owest ki l ometer - poi nt on t he br i dge) . When t he LRS I nvent or y Rout egoes under t he st r uct ur e ( I t em5A coded 2 or A- Z) , t hen code t heki l omet er poi nt on the under passi ng r out e wher e the st r uct ur e i s f i r stencount ered.

Code al l zer os i n t hi s f i el d f or al l r ecor ds wher e ki l omet er poi nt s ar enot provi ded. Ki l ometer poi nt s may be coded f or br i dges t hat ar e notl ocated on t he Base Hi ghway Network, however I t em 12 - Base Hi ghwayNetwork shal l be coded 0 f or t hese r ecor ds.

The ki l omet er poi nt i s coded al i gned t o t he assumed deci mal poi nt andzer o f i l l ed wher e needed t o f i l l t he 7 di gi t s.

EXAMPLES: Code

Ki l ometerpoi nt i s 130. 34 0130340

Ki l ometerpoi nt i s 9. 60 0009600

I t em 12 - Base Hi ghway Network 1 di gi t

Thi s i t em i s t o be coded f or al l r ecor ds i n t he i nvent or y. The BaseHi ghway Network i ncl udes t he thr ough l ane (mai nl i ne) port i ons of t heNHS, r ur al / ur ban pr i nci pal ar t er i al syst em and r ur al mi nor art er i alsyst em. Ramps, f r ont age r oads and other r oadways are not i ncl uded i nt he Base Net wor k. For t he i nvent or y r out e i dent i f i ed i n I t em 5 -I nvent or y Rout e, i ndi cat e whether t he i nvent ory r out e i s on t he BaseHi ghway Network or not on t hat network. Use one of t he f ol l owi ng codes:


0 I nvent ory Rout e i s not on t heBase Net wor k

1 I nvent ory Rout e i s on t he BaseNet wor k

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I t em 13 - LRS I nvent ory Rout e, Subr out e Number 12 di gi t s

I f I t em 12 - Base Hi ghway Network has been coded 1, t he i nf ormat i on t obe r ecor ded f or t hi s i t em i s i nvent or y r out e f or t he St at e' s l i nearr ef er enci ng syst em ( LRS) . I f I t em 12 has been coded 0, t hi s ent i r e i t emshoul d be l ef t bl ank. Thi s i t em i s a 12- di gi t code composed of 2segment s.


13A LRS I nvent ory Rout e 10 di gi t s13B Subrout e Number 2 di gi t s

The LRS i nvent or y r oute and subr oute numbers t o be r eport ed i n t hi s i t emmust cor r espond t o the LRS i nvent ory rout e and subr out e numbers r epor t edby t he St ate f or t he HPMS. The LRS i nvent ory rout e number i s coded i nt he t en posi t i ons of segment 13A, r i ght j ust i f i ed and zer o f i l l ed. Thesubr out e number , i f i t exi st s, i s coded i n t he t wo posi t i ons of segment13B, r i ght j usti f i ed and zer o f i l l ed.

The LRS i nvent or y r oute number can be al phanumer i c, but must not cont ai nbl anks. The LRS i nvent ory r out e number i s not necessar i l y t he same ast hat post ed al ong the roadway, but i s a number used t o uni quel y i dent i f ya r out e wi t hi n at l east a count y and per haps t hr oughout t he St ate.

The subr oute number i s a number t hat uni quel y i dent i f i es port i ons of ani nvent or y r out e sect i ons wher e dupl i cat e ki l omet er poi nt s occur . Thesesubr out e number s, i f t hey exi st , ar e i dent i f i ed i n t he St at e' s HPMS- LRSr ecords. I f t here i s no subr out e number , code 00 i n t hi s segment .

EXAMPLES: Code

I nvent or y Route 2775, Subroute Number 0 000000277500

I nvent or y Route 2775, Subroute Number 3 000000277503

I t em 14 and I t em 15

( Reserved)

I t em 16 - Lat i t ude ( XX degr ees XX mi nut es XX. XX seconds) 8 di gi t s

For br i dges on STRAHNET and STRAHNET Connect or hi ghways and on the NHS,r ecor d and code t he l at i t ude of each i n degr ees, mi nut es and seconds t ot he near est hundr edt h of a second ( wi t h an assumed deci mal poi nt ) . Thepoi nt of t he coordi nate may be t he begi nni ng of t he br i dge i n t hedi r ect i on of t he i nvent or y or any ot her consi st ent poi nt of r ef er ence ont he br i dge whi ch i s compat i bl e wi t h t he LRS. I f t he br i dge i s not on aSTRAHNET hi ghway or t he NHS, a code of al l zeros i s accept abl e, but i ti s pr ef er abl e t o code t he l at i t ude i f avai l abl e.

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I t em 16 - Lat i t ude ( cont ' d)

The r eason f or t he i ncr eased preci si on i s t o f aci l i t at e t he use ofGl obal Posi t i oni ng Syst em ( GPS) dat a di r ect l y i nt o t hi s i t em. Thei ncr eased pr eci si on i s not cur r ent l y mandat or y and, i f GPS r eadi ngs arenot avai l abl e, t he cur r ent measur i ng met hods and l evel of pr eci si on maycont i nue t o be used. The mi ni mum pr eci si on shoul d be t o t he near est

mi nut e, but t he pr ef er r ed pr eci si on i s t o t he near est hundr edt h of asecond usi ng GPS met hods.

EXAMPLE: Code

Lat i t ude i s 35°27. 3' ( cur r ent pr eci si on) 35271800( accept abl e codi ng) 35270000

35°27' 18. 55" ( GPS r eadi ng) 35271855

I t em 17 - Longi t ude ( XXX degr ees XX mi nut es XX. XX seconds) 9 di gi t s

For br i dges on STRAHNET and STRAHNET Connect or hi ghways and on the NHS,r ecor d and code the l ongi t ude of each i n degr ees, mi nut es and seconds t ot he near est hundr edt h of a second ( wi t h an assumed deci mal poi nt ) . Al eadi ng zero shal l be coded wher e needed. The poi nt of t he coor di nat emay be the begi nni ng of t he br i dge i n t he di r ect i on of t he i nvent or y orany ot her consi st ent poi nt of r ef er ence on t he br i dge whi ch i scompat i bl e wi t h t he LRS. I f t he br i dge i s not on a STRAHNET hi ghway ort he NHS, a code of al l zer os i s accept abl e, but i t i s pr ef er abl e t o codet he l ongi t ude i f avai l abl e.

The r eason f or t he i ncr eased preci si on i s t o f aci l i t at e t he use ofGl obal Posi t i oni ng Syst em ( GPS) dat a di r ect l y i nt o t hi s i t em. Thei ncr eased pr eci si on i s not cur r ent l y mandat or y and, i f GPS r eadi ngs arenot avai l abl e, t he cur r ent measur i ng met hods and l evel of pr eci si on maycont i nue t o be used. The mi ni mum pr eci si on shoul d be t o t he near estmi nut e, but t he pr ef er r ed pr eci si on i s t o t he near est hundr edt h of asecond usi ng GPS met hods.

EXAMPLE: Code

Longi t ude i s 81°5. 8' ( cur r ent pr eci si on) 081054800( accept abl e codi ng) 081060000

81°5' 50. 65" ( GPS r eadi ng) 081055065

I t em 18

( r eser ved)

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I t em 19 - Bypass, Det our Lengt h ( XXX ki l omet er s) 3 di gi t s

I ndi cat e the act ual l engt h t o the near est ki l omet er of t he det ourl engt h. The det our l engt h shoul d r epr esent t he t ot al addi t i onal t r avelf or a vehi cl e whi ch woul d r esul t f r om cl osi ng of t he br i dge. The f act ort o consi der when det er mi ni ng i f a bypass i s avai l abl e at t he si t e i s t hepot ent i al f or movi ng vehi cl es, i ncl udi ng mi l i t ar y vehi cl es, ar ound t he

st r uct ur e. Thi s i s par t i cul ar l y t r ue when t he st r uct ur e i s i n ani nt er change. For i nst ance, a bypass l i kel y woul d be avai l abl e i n t hecase of di amond i nt erchanges, i nt erchanges where t here ar e servi ce r oadsavai l abl e, or ot her i nt er changes wher e t he posi t i oni ng and l ayout of t her amps i s such t hat t hey coul d be used wi t hout di f f i cul t y t o get ar oundt he st r uct ur e. I f a gr ound l evel bypass i s avai l abl e at t he st r uct ur esi t e f or t he i nvent or y rout e, r ecor d and code the det our l engt h as 000.

I f t he br i dge i s one of t wi n br i dges and i s not at an i nt er change, code001 wher e t he other t wi n br i dge can be used as a t empor ary bypass wi t h ar easonabl e amount of cr ossover gr adi ng. The det our r out e wi l l beest abl i shed f ol l owi ng al l owabl e cr i t er i a det er mi ned by t he gover ni ngaut hor i t y. ( Some aut hor i t i es wi l l not al l ow a desi gnat ed det our over ar oad or br i dge of l esser "qual i t y. ") Code 199 f or 199 ki l omet er s ormore.

EXAMPLES: Code

Di amond i nt erchange, st r uct ur e bypassabl e 000Cl over l eaf , not bypassabl e; 18- ki l omet er det our 018St r uct ur e over r i ver ; 121- ki l omet er det our 121St r uct ur e over hi ghway, no i nt er change,

bypassabl e at gr ound l evel 000St r uct ure on dead end r oad 199

Bypass, Det our Length A t o B = 4 ki l omet ers

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I t em 19 - Bypass, Det our Lengt h ( cont ' d)

Bypass, Det our Length A t o B = 0 ki l omet ers

I t em 20 - Tol l 1 di gi t

The t ol l st at us of t he st r uct ure i s i ndi cat ed by t hi s i t em. I nter st at et ol l segment s under Secr etar i al Agr eement ( Ti t l e 23 - Uni t ed St at es Code- Hi ghways Sect i on 129 as amended by 1991 I STEA and pr i or l egi sl at i on)shal l be i dent i f i ed separ at el y. Use one of t he f ol l owi ng codes:


1 Tol l br i dge. Tol l s ar e pai d speci f i cal l y t o uset he st r uctur e.

2 On t ol l r oad. The st r uct ur e car r i es a t ol l r oad,t hat i s , t ol l s ar e pai d t o use t he f aci l i t y, whi ch

i ncl udes bot h t he hi ghway and t he st r uct ur e.3 On f r ee r oad. The st r uct ur e i s t ol l - f r ee and

car r i es a t ol l - f r ee hi ghway.

4 On I nt er st at e t ol l segment under Secr et ar i alAgr eement . St r uct ur e f unct i ons as a par t of t het ol l segment .

5 Tol l br i dge i s a segment under Secr et ar i alAgr eement . St r uct ur e i s separat e agr eement f r omhi ghway segment .

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I t em 21 - Mai nt enance Responsi bi l i t y 2 di gi t s

The act ual name( s) of t he agency( s) r esponsi bl e f or t he mai ntenance oft he st r uct ur e shal l be r ecor ded on t he i nspect i on f orm. The codes bel owshal l be used t o repr esent t he t ype of agency t hat has pr i mar yr esponsi bi l i t y f or mai nt ai ni ng t he st r uct ur e. I f mor e t han one agencyhas equal mai nt enance responsi bi l i t y, code one agency i n t he hi er archy

of St at e, Feder al , count y, ci t y, r ai l r oad, and ot her pr i vat e.


01 St at e Hi ghway Agency02 County Hi ghway Agency03 Town or Townshi p Hi ghway Agency04 Ci t y or Muni ci pal Hi ghway Agency11 St at e Par k, For est , or Reser vat i on Agency12 Local Par k, For est , or Reser vat i on Agency21 Ot her St ate Agenci es25 Ot her Local Agenci es26 Pr i vat e ( ot her t han r ai l r oad)27 Rai l r oad31 St at e Tol l Aut hor i t y32 Local Tol l Aut hor i t y60 Ot her Feder al Agenci es ( not l i st ed bel ow)61 I ndi an Tr i bal Government62 Bur eau of I ndi an Af f ai r s63 Bur eau of Fi sh and Wi l dl i f e64 U. S. For est Ser vi ce66 Nat i onal Par k Ser vi ce67 Tennessee Val l ey Aut hori t y68 Bur eau of Land Management69 Bureau of Recl amat i on70 Cor ps of Engi neer s ( Ci vi l )71 Cor ps of Engi neer s ( Mi l i t ar y)72 Ai r For ce73 Navy/ Mar i nes

74 Ar my75 NASA76 Met r opol i t an Washi ngt on Ai r port s Servi ce80 Unknown

I t em 22 - Owner 2 di gi t s

The act ual name( s) of t he owner( s) of t he br i dge shal l be r ecor ded ont he i nspect i on f orm. The codes used i n I t em 21 - Mai nt enanceResponsi bi l i t y shal l be used t o r epr esent t he t ype of agency t hat i s t hepr i mary owner of t he st r uct ur e. I f more t han one agency has equalowner shi p, code one agency i n the hi er ar chy of St at e, Feder al , count y,ci t y, rai l road, and ot her pr i vat e.

I t em 23 t hr ough I t em 25

( Reserved)

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I t em 26 - Funct i onal Cl assi f i cat i on of I nvent or y Rout e 2 di gi t s

For t he i nvent or y r out e, code t he f unct i onal cl assi f i cat i on usi ng one oft he f ol l owi ng codes:

Code Descr i pt i onRur al

01 Pr i nci pal Ar t er i al - I nt er stat e02 Pr i nci pal Ar t er i al - Ot her06 Mi nor Ar t er i al07 Maj or Col l ect or08 Mi nor Col l ect or09 Local

Ur ban11 Pr i nci pal Ar t er i al - I nt er stat e12 Pr i nci pal Ar t er i al - Ot her Freeways or

Expr essways14 Ot her Pr i nci pal Ar t er i al16 Mi nor Ar t er i al17 Col l ect or19 Local

The br i dge shal l be coded r ural i f not i nsi de a desi gnat ed urban ar ea. The urban or r ural desi gnat i on shal l be deter mi ned by t he br i dgel ocat i on and not t he charact er of t he r oadway.

I t em 27 - Year Bui l t 4 di gi t s

Recor d and code t he year of const r uct i on of t he st r uct ur e. Code al l 4di gi t s of t he year i n whi ch const r uct i on of t he st r uct ur e was compl et ed.I f t he year bui l t i s unknown, pr ovi de a best est i mat e. See al so I t em

106 - Year Reconst r uct ed.

EXAMPLES: Code

Const r uct i on compl et ed 1956 19561892 1892

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I t em 28 - Lanes On and Under t he St r uct ur e 4 di gi t s

Recor d and code t he number of l anes bei ng car r i ed by t he st r uct ur e andbei ng crossed over by t he st r uct ur e as a 4- di gi t number composed of 2segment s. The number of l anes shoul d be r i ght j ust i f i ed i n each segmentwi t h l eadi ng zer o( s) coded as r equi r ed.


28A Lanes on t he st r uct ur e 2 di gi t s28B Lanes under t he st r uct ur e 2 di gi t s

I ncl ude al l l anes car r yi ng hi ghway t r af f i c ( i . e. , car s, t r ucks, buses)whi ch ar e st r i ped or ot her wi se oper at ed as a f ul l wi dt h t r af f i c l ane f ort he ent i r e l engt h of t he st r uct ur e or under t he st r uct ur e by theowni ng/ mai nt ai ni ng aut hor i t y. Thi s shal l i ncl ude any f ul l wi dt h mer gel anes and r amp l anes, and shal l be i ndependent of di r ect i onal i t y ofusage ( i . e. , a 1- l ane br i dge carr yi ng 2- di rect i onal t raf f i c i s st i l lconsi der ed t o car r y onl y one l ane on t he st r uct ur e) . I t shoul d be not edhere t hat f or t he pur pose of eval uat i ng t he Deck Geometr y - I t em68, any"1- l ane" br i dge, not coded as a ramp ( I t em5C = 7) , whi ch has a Br i dgeRoadway Wi dt h, Cur b- t o- Cur b - I t em51 coded 4. 9 meters or gr eat er shal lbe eval uated as 2 l anes.

When t he i nvent or y r out e i s "on" t he br i dge ( t he f i r st di gi t of I t em 5 -I nvent or y Rout e i s coded 1) , t he sum of t he t ot al number of l anes on al li nvent or i ed r out es under t he br i dge shal l be coded. When t he i nvent oryr out e i s "under " t he br i dge ( t he f i r st di gi t of I t em 5 - I nvent or y Rout ei s coded 2 or A t hr ough Z) , onl y t he number of l anes bei ng i dent i f i ed byt hat "under " r ecor d shal l be coded i n I t em 28B.

When t he i nvent or y rout e i s "under " t he st r uct ur e, t he obst r uct i on overt he i nvent or y rout e may be other t han a hi ghway br i dge ( r ai l r oad,pedest r i an, pi pel i ne, et c. ) . Code 00 f or t hese cases i f t her e ar e nohi ghway l anes on t he obst r uct i ng st r uct ur e.

Doubl e deck br i dges may be coded as 1 or 2 st r uct ures as not ed i n theexampl es on t he next page. Ei t her method i s accept abl e, however, al lr el ated data must be compat i bl e wi t h t he method sel ect ed.

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I t em 28 - Lanes On and Under t he St r uct ur e ( cont ' d)

EXAMPLES*: Code

1 l ane on, 0 l anes under 01003 l anes on, 1 l ane under 0301

8 l anes on 2- way, 12 l anes under ** 08125 l anes on doubl e deck each di r ect i on,2 l anes under 1002***

5 l anes on doubl e deck each di r ect i on,2 l anes under 0502****

Rai l r oad and pedest r i an on, 4 l anes under 0004

* For t he i nvent or y r out e on t he br i dge, t he f i r st di gi t of I t em 5 -I nvent ory Rout e i s coded 1.

** Thi s exampl e has 3 i nvent ory rout es under t he br i dge of 6, 4, and2 l anes of 2- way t r af f i c respect i vel y. When codi ng an "under "r ecor d f or each of t hese i nvent or y r out es, t he f i r st di gi t ofI t em 5 - I nvent or y Rout e i s coded A, B, and C, and I t em 28 i scoded 0806, 0804, and 0802 r espect i vel y f or t he 3 r equi r edr ecor ds.

** *Accept abl e i f coded as 1 br i dge. However , ot her dat a such asADT, cur b- t o- cur b wi dt h, et c. , must be f or bot h decks( pr ef er r ed met hod) .

** **Accept abl e i f coded as 2 separat e br i dges. However , other datasuch as ADT, cur b- t o- cur b wi dt h, et c. , must be f or a si ngl e deck.

I t em 29 - Aver age Dai l y Tr af f i c 6 di gi t s

Code a 6- di gi t number t hat shows t he aver age dai l y t r af f i c vol ume f ort he i nvent or y r out e i dent i f i ed i n I t em 5. Make cer t ai n t he uni t ' s

posi t i on i s coded even i f est i mates of ADT are deter mi ned t o t ens orhundr eds of vehi cl es; t hat i s, appr opr i at e t r ai l i ng zer os shal l becoded. The ADT coded shoul d be t he most r ecent ADT count s avai l abl e.I ncl uded i n t hi s i t em ar e t he t r ucks r ef er r ed t o i n I t em 109 - Aver ageDai l y Tr uck Tr af f i c. I f t he br i dge i s cl osed, code t he act ual ADT f r ombef or e t he cl osur e occur r ed.

The ADT must be compat i bl e wi t h t he ot her i t ems coded f or t he br i dge.For exampl e, par al l el br i dges wi t h an open medi an ar e coded as f ol l ows:i f I t em 28 - Lanes On and Under t he St r uct ur e and I t em 51 - Br i dge

Roadway Wi dt h, Cur b- t o- Cur b are coded f or each br i dge separatel y, t hent he ADT must be coded f or each br i dge separatel y ( not t he total ADT f ort he r out e) .

EXAMPLES: Code

Aver age Dai l y Traf f i c 540 00054015, 600 01560024, 000 024000

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I t em 30 - Year of Aver age Dai l y Tr af f i c 4 di gi t s

Recor d t he year r epr esent ed by t he ADT i n I t em 29. Code al l f our di gi t sof t he year so recor ded.

EXAMPLE: Code

Year of ADT i s 1994 1994

I t em 31 - Desi gn Load 1 di gi t

Use the codes bel ow t o i ndi cat e t he l i ve l oad f or whi ch t he st r uct ur ewas desi gned. The numer i cal val ue of t he r ai l r oad l oadi ng shoul d ber ecor ded on t he f or m. Cl assi f y any ot her l oadi ng, when f easi bl e, usi ngt he near est equi val ent of t he l oadi ngs gi ven bel ow.

Met r i c Engl i shCode Descr i pt i on Descr i pt i on

1 M 9 or H 102 M 13. 5 H 153 MS 13. 5 HS 154 M 18 H 205 MS 18 HS 206 MS 18+Mod HS 20+Mod7 Pedest r i an Pedest r i an8 Rai l r oad Rai l r oad9 MS 22. 5 HS 250 Ot her or Unknown ( descr i be on

i nspect i on r epor t i ng f or m)

I t em 32 - Appr oach Roadway Wi dt h ( XXX. X meters) 4 di gi t s

Code a 4- di gi t number t o r epr esent t he normal wi dt h of usabl e r oadway

appr oachi ng the st r uct ur e measur ed t o t he near est t ent h of a meter ( wi t han assumed deci mal poi nt ) . Usabl e r oadway wi dt h wi l l i ncl ude t he wi dt hof t r af f i c l anes and t he wi dt hs of shoul der s wher e shoul der s are def i nedas f ol l ows:

Shoul ders must be const r uct ed and normal l y mai nt ai ned f l ushwi t h t he adj acent t r af f i c l ane, and must be st r uct ur al l yadequat e f or al l weat her and t r af f i c condi t i ons consi st entwi t h t he f aci l i t y carr i ed.

Unst abi l i zed gr ass or di r t , wi t h no base cour se, f l ush wi t h and besi det he t r af f i c l ane i s not t o be consi der ed a shoul der f or t hi s i t em.

For st r uct ur es wi t h medi ans of any t ype and doubl e- decked st r uct ur es,t hi s i t em shoul d be coded as t he sum of t he usabl e r oadway wi dt hs f ort he appr oach r oadways ( i . e. , al l medi an wi dt hs whi ch do not qual i f y asshoul der s shoul d not be i ncl uded i n t hi s di mensi on) . When t here i s avar i at i on bet ween t he appr oaches at ei t her end of t he st r uct ur e, r ecor dand code the most r est r i ct i ve of t he appr oach condi t i ons.

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I t em 32 - Appr oach Roadway Wi dt h ( cont ' d)

EXAMPLES:

Lef t Lef t Medi an Ri ght Ri ghtShoul der Roadway Shoul ders Roadway Shoul der Code

1. 2 - - 4. 8 1. 8 00781. 8 - - 10. 8 3. 6 01623. 6 14. 4 9. 0 14. 4 3. 6 04503. 0 7. 2 4. 8 10. 8 3. 0 0288

The l ast exampl e above r epresent s t he codi ng met hod f or a st r uct ure i nwhi ch t he most r est r i ct i ve appr oach has t he cr oss- sect i on shown bel ow:

Regardl ess of whether t he medi an i s open or cl osed, t he data coded mustbe compat i bl e wi t h t he ot her r el at ed r out e and br i dge dat a ( i . e. , i fI t em 51 - Br i dge Roadway Wi dt h, Cur b- t o- Cur b i s f or t r af f i c i n onedi r ect i on onl y, t hen I t ems 28, 29, 32, et c. must be f or t r af f i c i n onedi rect i on onl y) .

I f a r amp i s adj acent t o t he t hr ough l anes appr oachi ng t he st r uct ur e, i tshal l be i ncl uded i n t he appr oach r oadway wi dt h. The t ot al appr oachr oadway wi dt h f or t he exampl e bel ow i s 29. 2 meters ( a code of 292) .

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I t em 33 - Br i dge Medi an 1 di gi t

I ndi cat e wi t h a 1- di gi t code i f t he medi an i s non- exi st ent , open orcl osed. The medi an i s cl osed when t he area bet ween t he 2 r oadways att he st r uct ur e i s br i dged over and i s capabl e of suppor t i ng t r af f i c. Al lbr i dges t hat car r y ei t her 1- way t r af f i c or 2- way t r af f i c separ at ed onl yby a cent erl i ne wi l l be coded 0 f or no medi an.


0 No medi an1 Open medi an2 Cl osed medi an ( no barr i er)3 Cl osed medi an wi t h non- mount abl e barr i ers

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I t em 34 - Skew ( XX degr ees) 2 di gi t s

The skew angl e i s t he angl e between t he cent er l i ne of a pi er and a l i nenormal t o t he r oadway cent er l i ne. When pl ans ar e avai l abl e, t he skewangl e can be t aken di r ect l y f r om t he pl ans. I f no pl ans ar e avai l abl e,t he angl e i s t o be f i el d measur ed i f possi bl e. Recor d t he skew angl e t ot he near est degr ee. I f t he skew angl e i s 0E, i t shoul d be so coded.

When t he st r uct ur e i s on a cur ve or i f t he skew var i es f or some ot herr eason, t he aver age skew shoul d be r ecor ded, i f r easonabl e. Ot herwi se,r ecor d 99 t o i ndi cat e a maj or var i at i on i n skews of subst r uct ur e uni t s.A 2- di gi t number shoul d be coded.

EXAMPLES: CodeSkew angl e 0° 00

10° 108° 08

29° 29

I t em 35 - St r uctur e Fl ar ed 1 di gi t

Code t hi s i t em t o i ndi cat e i f t he str uct ur e i s f l ared ( i . e. , t he wi dt hof t he st r uctur e var i es) . Gener al l y, such var i ance wi l l r esul t f r omr amps conver gi ng wi t h or di ver gi ng f r omt he thr ough l anes on t hest r uct ur e, but t her e may be ot her causes. Mi nor f l ar es at ends ofst r uct ur es shoul d be i gnor ed.


0 No f l ar e1 Yes, f l ar ed

I t em 36 - Tr af f i c Saf et y Feat ur es 4 di gi t s

Br i dge i nspect i on shal l i ncl ude t he r ecor di ng of i nf or mat i on on t he

f ol l owi ng t r af f i c saf et y f eat ur es so t hat t he eval uat i on of t hei radequacy can be made.

( A) Br i dge r ai l i ngs: Some f actor s t hat af f ect t he pr oper f unct i oni ng ofbr i dge r ai l i ng ar e hei ght , mat er i al , st r engt h, and geomet r i cf eat ur es. Rai l i ngs must be capabl e of smoot hl y r edi r ect i ng ani mpact i ng vehi cl e. Br i dge r ai l i ngs shoul d be eval uat ed usi ng t hecur r ent AASHTO St andard Speci f i cat i ons f or Hi ghway Br i dges, whi chcal l s f or r ai l i ngs t o meet speci f i c geomet r i c cr i t er i a and t o r esi stspeci f i ed st at i c l oads wi t hout exceedi ng t he al l owabl e st r esses i nt hei r el ement s. Br i dge r ai l i ng shoul d be cr ash t ested per FHWApol i cy. Rai l i ngs that meet t hese cri t er i a and l oadi ng condi t i onsar e consi der ed accept abl e. Ot her r ai l i ngs t hat have beensuccessf ul l y crash t ested ar e consi dered accept abl e even t hough t heymay not meet t he st at i c l oadi ng anal ysi s and geometr i c r equi r ement s.Accept abl e gui del i nes f or br i dge r ai l i ng desi gn and t est i ng ar e

al so f ound i n t he AASHTO Gui de Speci f i cat i ons f or Br i dge Rai l i ngs1989. Addi t i onal gui dance f or t est i ng i s f ound i n Nat i onalCooper at i ve Hi ghway Resear ch Program - Repor t 350 RecommendedProcedur es f or t he Saf ety Per f ormance Eval uat i on of Hi ghway Feat ur es1993.

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I t em 36 - Tr af f i c Saf et y Feat ur es ( cont ' d)

( B) Tr ansi t i ons: The t r ansi t i on f r om appr oach guar dr ai l t o br i dger ai l i ng r equi r es t hat t he appr oach guar dr ai l be f i r ml y at t ached t ot he br i dge r ai l i ng. I t al so r equi r es t hat t he appr oach guar dr ai l begr adual l y st i f f ened as i t comes cl oser t o t he br i dge r ai l i ng. Theends of cur bs and saf ety wal ks need t o be gr adual l y tapered out or

shi el ded.

( C) Appr oach guar dr ai l : The st r uct ur al adequacy and compat i bi l i t y ofappr oach guar dr ai l wi t h t r ansi t i on desi gns shoul d be det er mi ned.Rar el y does t he need f or a bar r i er st op at t he end of a br i dge. Thus, an appr oach guar drai l wi t h adequat e l engt h and st r uct uralqual i t i es t o shi el d mot or i st s f r om t he hazar ds at t he br i dge si t eneeds t o be i nst al l ed. I n addi t i on t o bei ng capabl e of saf el yr edi r ect i ng an i mpact i ng vehi cl e, t he appr oach guar dr ai l must al sof aci l i t at e a t r ansi t i on t o t he br i dge rai l i ng t hat wi l l not causesnaggi ng or pocket i ng of an i mpact i ng vehi cl e. Accept abl eguardr ai l desi gn suggest i ons ar e cont ai ned i n t he AASHTO Roadsi deDesi gn Gui de and subsequent FHWA or AASHTO gui del i nes.

( D) Appr oach guar dr ai l ends: As wi t h guar dr ai l ends i n gener al , t heends of appr oach guar dr ai l s t o br i dges shoul d be f l ar ed, bur i ed,made br eakaway, or shi el ded. Desi gn t r eat ment of guardr ai l ends i sgi ven i n t he AASHTO Roadsi de Desi gn Gui de.

The data col l ect ed shal l appl y onl y t o t he r oute on t he br i dge.Col l i si on damage or det er i or at i on of t he el ement s are not consi der edwhen codi ng t hi s i t em. Tr af f i c saf et y f eat ur es i s a 4- di gi t codecomposed of 4 segments.


36A Br i dge r ai l i ngs 1 di gi t36B Tr ansi t i ons 1 di gi t36C Appr oach guardr ai l 1 di gi t

36D Appr oach guardr ai l ends 1 di gi t

The r epor t i ng of t hese f eat ures shal l be as f ol l ows:


0 I nspected f eat ur e does not meet cur r ent l yaccept abl e st andar ds or a saf et y f eat ur e i sr equi r ed and none i s pr ovi ded. *

1 I nspected f eat ur e meet s cur r ent l y accept abl est andar ds. *

N Not appl i cabl e or a saf et y f eat ur e i s notr equi r ed. *

* For st r uct ur es on t he NHS, nat i onal st andar ds ar e set by r egul at i on.For t hose not on t he NHS, i t shal l be t he r esponsi bi l i t y of t he

hi ghway agency ( st at e, count y, l ocal or f eder al ) t o set st andar ds.

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I t em 36 - Tr af f i c Saf et y Feat ur es ( cont ' d)

EXAMPLE: Code

Al l f eat ur es meet cur r ent l y accept abl est andards except t r ansi t i on 1011

I t em 37 - Hi stor i cal Si gni f i cance 1 di gi t

The hi st or i cal si gni f i cance of a br i dge i nvol ves a var i et y ofchar act er i st i cs: t he br i dge may be a par t i cul ar l y uni que exampl e of t hehi st or y of engi neer i ng; t he crossi ng i t sel f mi ght be si gni f i cant ; t hebr i dge mi ght be associ at ed wi t h a hi st or i cal pr oper t y or ar ea; orhi st or i cal si gni f i cance coul d be der i ved f r om t he f act t he br i dge wasassoci at ed wi t h si gni f i cant event s or ci r cumst ances. Use one of t hef ol l owi ng codes:


1 Br i dge i s on t he Nat i onal Regi st er of Hi st or i cPl aces.

2 Br i dge i s el i gi bl e f or t he Nat i onal Regi st erof Hi stor i c Pl aces.

3 Br i dge i s possi bl y el i gi bl e f or t he Nat i onalRegi st er of Hi st or i c Pl aces ( r equi r es f ur t heri nvest i gat i on bef or e det er mi nat i on can be

made) or br i dge i s on a St at e or l ocalhi st or i c regi s ter .

4 Hi st or i cal si gni f i cance i s not det er mi nabl e att hi s t i me.

5 Br i dge i s not el i gi bl e f or t he Nat i onal

Regi st er of Hi st or i c Pl aces.

I t em 38 - Navi gat i on Cont r ol 1 di gi t

I ndi cat e f or t hi s i t em whet her or not navi gat i on cont r ol ( a br i dgeper mi t f or navi gat i on) i s requi r ed. Use one of t he f ol l owi ng codes:


N Not appl i cabl e, no water way.

0 No navi gat i on cont r ol on waterway ( br i dgeper mi t not r equi r ed) .

1 Navi gat i on cont r ol on waterway ( br i dge permi tr equi r ed) .

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I t em 39 - Navi gat i on Ver t i cal Cl ear ance ( XXX. X met er s) 4 di gi t s

I f I t em38 - Navi gat i on Cont r ol has been coded 1, r ecor d t he mi ni mumver t i cal cl ear ance i mposed at t he si t e as measur ed above a datum t hat i sspeci f i ed on a navi gat i on permi t i ssued by a cont r ol agency. Themeasurement shal l be coded as a 4- di gi t number t r uncat ed t o t he t ent h ofa met er ( wi t h an assumed deci mal poi nt ) . Thi s measur ement wi l l show t he

cl ear ance t hat i s al l owabl e f or navi gat i onal pur poses. I n t he case of aswi ng or bascul e br i dge, t he ver t i cal cl ear ance shal l be measur ed wi t ht he br i dge i n t he cl osed posi t i on ( i . e. , open t o vehi cul ar t r af f i c). The ver t i cal cl ear ance of a ver t i cal l i f t br i dge shal l be measur ed wi t ht he br i dge i n t he r ai sed or open posi t i on. Al so, I t em 116 - Mi ni mumNavi gat i on Ver t i cal Cl ear ance Ver t i cal Li f t Br i dge shal l be coded t opr ovi de cl ear ance i n a cl osed posi t i on. I f I t em 38 - Navi gat i on Cont r olhas been coded 0 or N, code 000 t o i ndi cate not appl i cabl e.

EXAMPLES: Code

Measur ed Vert i calCl earance 50. 00 met er s 0500

20. 65 met er s 020624. 28 met er s 0242

I t em 40 - Navi gat i on Hor i zont al Cl ear ance ( XXXX. X met er s) 5 di gi t s

I f I t em 38 - Navi gat i on Cont r ol has been coded 1, r ecor d t he hor i zont alcl ear ance measur ement i mposed at t he si t e that i s shown on t henavi gat i on permi t . Thi s may be l ess t han t he st r uct ur e geometr y al l ows.I f a navi gat i on per mi t i s r equi r ed but not avai l abl e, use t he mi ni mum

hor i zont al cl ear ance bet ween f ender s, i f any, or t he cl ear di st ancebetween pi ers or bent s. Code t he cl ear ance as a 5- di gi t numbert r uncated t o t he t ent h of a meter ( wi t h an assumed deci mal poi nt ) . I fI t em 38 - Navi gat i on Cont r ol has been coded 0 or N, code 0000 t oi ndi cat e not appl i cabl e.

EXAMPLES: Code

Hor i zont al Cl ear ance 53. 57 meters 0053595. 00 met er s 00950

202. 09 met er s 02020

I t em 41 - St r uctur e Open, Post ed, or Cl osed t o Tr af f i c 1 di gi t

Thi s i t em provi des i nf or mat i on about t he act ual oper at i onal st at us of ast r uct ur e. The f i el d r evi ew coul d show t hat a st r uct ur e i s post ed, butI t em 70 - Br i dge Post i ng may i ndi cat e t hat post i ng i s not r equi r ed. Thi s i s possi bl e and acceptabl e codi ng si nce I t em 70 i s based on t heoper at i ng st r ess l evel and the gover ni ng agency' s post i ng pr ocedur es mayspeci f y post i ng at some st r ess l evel l ess t han t he oper at i ng r at i ng.One of t he f ol l owi ng codes shal l be used:

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I t em 41 - St r uctur e Open, Post ed, or Cl osed t o Tr af f i c ( cont ' d)


A Open, no r est r i ct i on

B Open, post i ng r ecommended but not l egal l y

i mpl ement ed ( al l si gns not i n pl ace or notcorr ect l y i mpl ement ed)

D Open, woul d be post ed or cl osed except f ort empor ar y shor i ng, et c. t o al l ow f orunrestr i ct ed t raf f i c

E Open, t empor ary st r uct ur e i n pl ace t o car r yl egal l oads whi l e or i gi nal str uctur e i scl osed and awai t i ng r epl acement orrehabi l i t at i on

G New st r uct ur e not yet open t o t r af f i c

K Br i dge cl osed t o al l t raf f i c

P Post ed f or l oad ( may i ncl ude otherr est r i ct i ons such as t empor ar y br i dges whi chare l oad post ed)

R Post ed f or ot her l oad- capaci t y r est r i ct i on( speed, number of vehi cl es on br i dge, et c. )

I t em 42 - Type of Ser vi ce 2 di gi t s

The t ype of ser vi ce on t he br i dge and under t he br i dge i s i ndi cat ed by a2- di gi t code composed of 2 segment s.


42A Type of servi ce on br i dge 1 di gi t42B Type of servi ce under br i dge 1 di gi t

The f i r st di gi t i ndi cat es t he t ype of ser vi ce "on" t he br i dge and shal lbe coded usi ng one of t he f ol l owi ng codes:


1 Hi ghway2 Rai l r oad3 Pedest r i an- bi cycl e4 Hi ghway- r ai l r oad5 Hi ghway- pedest r i an6 Over pass st r uct ur e at an i nt erchange or

second l evel of a mul t i l evel i nt er change7 Thi r d l evel ( I nt er change)8 Four t h l evel ( I nt er change)9 Bui l di ng or pl aza0 Ot her

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I t em 42 - Type of Ser vi ce ( cont ' d)

The second di gi t i ndi cat es t he t ype of ser vi ce "under" t he br i dge andshal l be coded usi ng one of t he f ol l owi ng codes:


1 Hi ghway, wi t h or wi t hout pedest r i an2 Rai l r oad3 Pedest r i an- bi cycl e4 Hi ghway- r ai l r oad5 Wat er way6 Hi ghway- wat er way7 Rai l r oad- waterway8 Hi ghway- waterway- r ai l r oad9 Rel i ef f or wat er way0 Ot her

I t em 43 - St r uct ur e Type, Mai n 3 di gi t s

Recor d t he descr i pt i on on t he i nspect i on f or m and i ndi cat e t he t ype ofst r uct ur e f or t he mai n span( s) wi t h a 3- di gi t code composed of 2segment s.


43A Ki nd of mat er i al and/ or desi gn 1 di gi t43B Type of desi gn and/ or const r uct i on 2 di gi t s

The f i r st di gi t i ndi cat es t he ki nd of mat er i al and/ or desi gn and shal lbe coded usi ng one of t he f ol l owi ng codes:


1 Concr ete

2 Concr ete cont i nuous3 St eel4 St eel cont i nuous5 Prest r essed concr ete *6 Prest r essed concr ete cont i nuous *7 Wood or Ti mber8 Masonr y9 Al umi num, Wr ought I r on, or Cast I r on0 Ot her

* Post - t ensi oned concr ete shoul d be coded as pr est r essed concr ete.

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I t em 43 - St r uct ur e Type, Mai n ( cont ' d)

The second and t hi r d di gi t s i ndi cat e t he predomi nant t ype of desi gnand/ or t ype of const r uct i on and shal l be coded usi ng one of t hef ol l owi ng codes:


01 Sl ab02 St r i nger / Mul t i - beam or Gi r der03 Gi r der and Fl oor beam Syst em

04 Tee Beam 05 Box Beam or Gi r der s - Mul t i pl e

06 Box Beam or Gi r ders - Si ngl e or Spr ead07 Fr ame ( except f r ame cul ver t s)08 Or t hot r opi c09 Truss - Deck10 Truss - Thr u11 Ar ch - Deck12 Ar ch - Thr u13 Suspensi on14 St ayed Gi r der15 Movabl e - Li f t16 Movabl e - Bascul e17 Movabl e - Swi ng18 Tunnel19 Cul ver t ( i ncl udes f r ame cul ver t s)20 * Mi xed t ypes21 Segment al Box Gi r der22 Channel Beam

00 Ot her

* Appl i cabl e onl y t o appr oach spans - I t em 44

EXAMPLES: Code

Wood or Ti mber Through Tr uss 710Masonr y Cul vert 819St eel Suspensi on 313Cont i nuous Concr ete Mul t i pl e Box Gi r ders 205Si mpl e Span Concr et e Sl ab 101 Tunnel i n Rock 018

I t em 44 - St r uct ur e Type, Appr oach Spans 3 di gi t s

I ndi cate wi t h a 3- di gi t code composed of 2 segment s, t he t ype ofst r uct ur e f or t he appr oach spans t o a maj or br i dge or f or t he spanswher e t he st r uct ur al mat er i al i s di f f er ent . The codes ar e t he same asf or I t em 43 pr ecedi ng. However , code 000 i f t hi s i t em i s notappl i cabl e. Use code 20 ( I t em 44B) when no one t ype of desi gn and/ orconst r uct i on i s pr edomi nat e f or t he appr oach uni t s. I f t he ki nd ofmat er i al ( I t em 44A) i s var i ed, code t he most pr edomi nant .

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I t em 44 - St r uct ur e Type, Appr oach Spans ( cont ' d)


44A Ki nd of mat er i al and/ or desi gn 1 di gi t44B Type of desi gn and/ or const r uct i on 2 di gi t s

EXAMPLES: Code

Si mpl e pr est r essed concr ete I - beam 502Cont i nuous concr ete T- beam 204Cont i nuous st eel deck t r uss 409

I t em 45 - Number of Spans i n Mai n Uni t 3 di gi t s

Record t he number and i ndi cat e wi t h a 3- di gi t number t he number of spansi n t he mai n or maj or uni t . Thi s i t em wi l l i ncl ude al l spans of mostbr i dges, t he maj or uni t onl y of a si zabl e st r uctur e, or a uni t ofmat er i al or desi gn di f f er ent f r om t hat of t he appr oach spans.

I t em 46 - Number of Appr oach Spans 4 di gi t s

Record t he number and i ndi cat e wi t h a 4- di gi t number t he number of spansi n t he appr oach spans t o t he maj or br i dge, or t he number of spans ofmat er i al di f f er ent f r om t hat of t he maj or br i dge.

I t em 47 - I nvent or y Rout e, Tot al Hor i zont al Cl ear ance 3 di gi t s( XX. X meters)

The t ot al hor i zont al cl ear ance f or t he i nvent or y r oute i dent i f i ed i nI t em 5 shoul d be measured and r ecor ded. The cl ear ance shoul d be t heavai l abl e cl ear ance measur ed bet ween t he r est r i ct i ve f eat ur es - - cur bs,r ai l s, wal l s, pi er s or ot her st r uctur al f eat ur es l i mi t i ng t he r oadway

( sur f ace and shoul ders) . The measur ement shoul d be r ecorded and codedas a 3- di gi t number t r uncated t o t he nearest t ent h of a meter ( wi t h anassumed deci mal poi nt ) . When t he r est r i ct i on i s 100 meters or great er ,code 999.

The pur pose of t hi s i t em i s t o gi ve t he l ar gest avai l abl e cl ear ance f ort he movement of wi de l oads. Fl ush and mountabl e medi ans are notconsi der ed t o be r est r i ct i ons. Thi s cl ear ance i s def i ned i n 2 ways; uset he most appl i cabl e:

1. Cl ear di st ance bet ween r est r i ct i ons of t he i nvent or y r out eei t her "on" or " under " t he st r uct ur e.

2. Roadway sur f ace and shoul ders - when t here are no r est r i ct i ons.

For a di vi ded f aci l i t y wi t h a rai sed or non- mount abl e medi an, or an"under " r out e di vi ded by pi er s, r ecor d t he gr eat er of t he r est r i ct edwi dt hs i n ei t her di r ecti on, not bot h di r ecti ons.

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I t em 47 - I nvent or y Rout e, Tot al Hor i zont al Cl ear ance ( cont ' d)

EXAMPLES:

I t em 48 - Lengt h of Maxi mum Span ( XXXX. X meters) 5 di gi t s

The l engt h of t he maxi mum span shal l be r ecor ded. I t shal l be notedwhet her t he measurement i s cent er t o cent er of bear i ng poi nt s or cl earopen di st ance between pi ers, bent s, or abut ment s. The measurement shal lbe al ong t he cent er l i ne of t he br i dge. For t hi s i t em, code a 5- di gi tnumber t o repr esent t he measur ement t o t he nearest t ent h of a meter( wi t h an assumed deci mal poi nt ) .

EXAMPLES: Code

Length of Maxi mum Span 35. 5 met er s 00355117. 0 met er s 01170

1219. 2 met er s 12192

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I t em 49 - St r uct ur e Lengt h ( XXXXX. X met er s) 6 di gi t s

Recor d and code a 6- di gi t number t o r epr esent t he l engt h of t hest r uct ur e t o t he near est t ent h of a meter ( wi t h an assumed deci malpoi nt ) . Thi s shal l be t he l engt h of r oadway whi ch i s suppor t ed on t hebr i dge st r uct ur e. The l engt h shoul d be measured back t o back ofbackwal l s of abut ment s or f r ompavi ng notch t o pavi ng not ch.

Cul ver t l engt hs shoul d be measured al ong t he cent er l i ne of r oadwayr egardl ess of t hei r dept h bel ow grade. Measur ement shoul d be madebet ween i nsi de f aces of exter i or wal l s. Tunnel l engt h shoul d bemeasured al ong t he cent er l i ne of t he r oadway. Be sure t o code I t em 5A =2 f or al l t unnel s.

EXAMPLES: Code

St r uct ur e Length 35. 5 meters 000355542. 1 met er s 005421333. 0 met er s 003330

10 123. 5 met er s 101235

( 1) I t em 49 - St r uctur e Lengt h

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I t em 49 - St r uctur e Lengt h ( cont ' d)

Code( 1) I t em 49 - St r uct ur e Lengt h = 5. 7 m = 6. 58 m 000066

cos 30o

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I t em 50 - Cur b or Si dewal k Wi dt hs ( XX. X meters, XX. X meters) 6 di gi t s

Recor d and code two cont i guous 3- di gi t numbers t o repr esent t he wi dt hsof t he l ef t and r i ght cur bs or si dewal ks t o near est t ent h of a met er( wi t h assumed deci mal poi nt s) . Thi s i s a 6- di gi t number composed of 2segment s, wi t h t he l ef t most 3 di gi t s r epr esent i ng t he l ef t cur b orsi dewal k and t he r i ght most 3 di gi t s r epr esent i ng t he r i ght cur b or

si dewal k. "Lef t " and "Ri ght " shoul d be det er mi ned on t he basi s ofdi r ect i on of t he i nvent or y.


50A Lef t cur b or si dewal k wi dt h 3 di gi t s50B Ri ght cur b or si dewal k wi dt h 3 di gi t s

EXAMPLES: Lef t Si de Ri ght Si de Code

Curb or si dewal k None 2. 3 met er s 0000233. 0 met er s 4. 1 met er s 0300413. 3 met er s None 033000

12. 1 met er s 11. 5 met er s 121115None None 000000

0. 6 met er s 1. 5 met er s 006015

( 1) I t em51 - Br i dge Roadway Wi dt h, Cur b- t o- Cur b( 2) I t em 52 - Deck Wi dt h, Out - t o- Out( 3) I t em 50 - Cur b or Si dewal k Wi dt h

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I t em 50 - Cur b or Si dewal k Wi dt hs ( cont ' d)

EXAMPLES:

( 1) I t em51 - Br i dge Roadway Wi dt h, Cur b- t o- Cur b( 2) I t em 52 - Deck Wi dt h, Out - t o- Out( 3) I t em 50 - Cur b or Si dewal k Wi dt h

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I t em 51 - Br i dge Roadway Wi dt h, Cur b- t o- Cur b ( XXX. X meter s) 4 di gi t s

The i nf or mat i on t o be r ecor ded i s t he most r est r i ct i ve mi ni mum di st ancebet ween cur bs or r ai l s on t he st r uct ur e r oadway. For st r uct ur es wi t hcl osed medi ans and usual l y f or doubl e decked st r uct ur es, coded data wi l lbe t he sum of t he most r est r i ct i ve mi ni mum di st ances f or al l r oadwayscar r i ed by t he st r uct ur e*. The dat a r ecor ded f or t hi s i t em must be

compat i bl e wi t h ot her r el at ed r out e and br i dge dat a ( i . e. , I t ems 28, 29,32, et c. ) . The measur ement shoul d be excl usi ve of f l ar ed ar eas f orr amps. A 4- di gi t number shoul d be used t o r epr esent t he di st ance t o t henear est t ent h of a meter ( wi t h an assumed deci mal poi nt ) . See exampl eson pages 30 and 31.

Wher e t r af f i c r uns di r ect l y on t he t op sl ab ( or wear i ng sur f ace) of acul ver t - t ype st r uctur e, e. g. an R/ C box wi t hout f i l l , code t he act ualr oadway wi dt h ( cur b- t o- cur b or r ai l - t o- r ai l ) . Thi s wi l l al so appl ywher e the f i l l i s mi ni mal and headwal l s or par apet s af f ect t he f l ow oft r af f i c.

Wher e the roadway i s on f i l l car r i ed acr oss a st r uct ur e and t heheadwal l s or par apet s do not af f ect t he f l ow of t r af f i c, code 0000. Thi s i s consi dered proper i nasmuch as a f i l l ed sect i on si mpl y mai nt ai nst he r oadway cr oss- sect i on. However , f or si dehi l l vi aduct st r uct ur escode t he act ual f ul l cur b- t o- cur b r oadway wi dt h. See f i gur e i n t heComment ar y Appendi x D.

* Rai sed or non- mount abl e medi ans, open medi ans, and bar r i er wi dt hsare t o be excl uded f r omt he summat i on al ong wi t h bar r i er - pr otect edbi cycl e and equest r i an l anes.

EXAMPLES: Code

Br i dge Roadway Wi dth 16. 00 met er s wi de 016021. 43 met er s wi de 021433. 07 met er s wi de 0331

The l ast exampl e above woul d be t he coded val ue f or t he deck sect i onshown bel ow.

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I t em 52 - Deck Wi dt h, Out - t o- Out ( XXX. X met er s) 4 di gi t s

Recor d and code a 4- di gi t number t o show t he out - t o- out wi dt h t o thenear est t ent h of a meter ( wi t h an assumed deci mal poi nt ) . I f t hest r uct ur e i s a t hr ough st r uct ur e, t he number t o be coded wi l l r epr esentt he l ateral cl ear ance bet ween superst r uct ure member s. The measur ementshoul d be excl usi ve of f l ared areas f or r amps. See exampl es on pages 30

and 31.

Wher e t r af f i c r uns di r ect l y on t he t op sl ab ( or wear i ng sur f ace) of t hecul ver t ( e. g. , an R/ C box wi t hout f i l l ) code t he actual wi dt h( out - t o- out ) . Thi s wi l l al so appl y wher e t he f i l l i s mi ni mal and t hecul ver t headwal l s af f ect t he f l ow of t r af f i c. However , f or si dehi l lvi aduct st r uct ur es code t he act ual out - t o- out st r uct ur e wi dt h. Seef i gure i n t he Comment ary Appendi x D.

Wher e the roadway i s on a f i l l car r i ed acr oss a pi pe or box cul ver t andt he cul ver t headwal l s do not af f ect t he f l ow of t r af f i c, code 0000. Thi s i s consi dered proper i nasmuch as a f i l l ed sect i on over a cul ver tsi mpl y mai nt ai ns t he r oadway cr oss- sect i on.

I t em 53 - Mi ni mum Vert i cal Cl ear ance Over Br i dge Roadway 4 di gi t s( XX. XX meters)

The i nf or mat i on t o be r ecor ded f or t hi s i t em i s t he act ual mi ni mumver t i cal cl ear ance over t he br i dge r oadway, i ncl udi ng shoul der s, t o anysuper st r uct ur e rest r i ct i on, r ounded down to t he near est hundr edt h of ameter . For doubl e decked st r uct ur es code t he mi ni mum, r egardl esswhet her i t i s per t ai ni ng t o t he t op or bot t om deck. When nosuper st r uct ur e rest r i ct i on exi st s above t he br i dge roadway, or when ar est r i ct i on i s 30 met er s or gr eat er , code 9999. Codi ng of act ualcl earances bet ween 30 met ers and 99. 99 met ers t o an exact measurement i sopt i onal . A 4- di gi t number shoul d be coded t o r epr esent t he cl earancet o the near est hundr edt h of a meter ( wi t h an assumed deci mal poi nt ) .

EXAMPLES: CodeMi ni mum Ver t i cal Cl ear anceNo r est r i ct i on 9999

5. 25 met er s 052523. 00 met er s 230038. 50 met er s 9999

I t em 54 - Mi ni mum Ver t i cal Under cl ear ance 5 di gi t s( X code, XX. XX meters)

Usi ng a 1- di gi t code and a 4- di gi t number , r ecor d and code the mi ni mumver t i cal cl ear ance f r om t he r oadway ( t r avel l anes onl y) or r ai l r oadt r ack beneat h t he st r uct ur e t o t he under si de of t he super st r uct ur e.( When both a r ai l r oad and hi ghway ar e under t he st r uct ur e, code t he mostcr i t i cal di mensi on. )

Segment Descr i pt i on Length54A Ref erence f eat ur e 1 di gi t54B Mi ni mum Vert i cal Undercl ear ance 4 di gi t s

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I t em 54 - Mi ni mum Ver t i cal Under cl ear ance ( cont ' d)

Usi ng one of t he codes bel ow, code i n t he f i r st posi t i on, t he ref er encef eat ur e f r om whi ch t he cl ear ance measur ement i s t aken:

Code Descr i pt i onH Hi ghway beneat h st r uct ur e

R Rai l r oad beneat h st r uct ur eN Feat ur e not a hi ghway or r ai l r oad

I n t he next 4 posi t i ons, code a 4- di gi t number t o repr esent t he mi ni mumver t i cal cl ear ance f r om t hat f eat ur e t o t he st r uct ur e, t r uncat ed t o t hehundr edt h of a meter ( wi t h an assumed deci mal poi nt ) . When a r est r i ct i oni s 30 meters or greater, code 9999. Codi ng of actual cl ear ances between30 meters and 99. 99 meters t o an exact measurement i s opt i onal . I f t hef eat ur e i s not a hi ghway or r ai l r oad, code the mi ni mum ver t i calcl earance 0000.

EXAMPLES: CODERi ver beneat h st r uct ur e N0000

Rai l r oad 9. 529 meters beneat h st r uct ur e R0952

Hi ghway 10. 464 met ers beneat h st r uct ure H1046

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I t em 55 - Mi ni mum Lat er al Under cl ear ance on Ri ght 4 di gi t s( X code, XX. X meters)

Usi ng a 1- di gi t code and a 3- di gi t number , r ecor d and code the mi ni muml at er al under cl ear ance on t he ri ght t o t he near est t ent h of a met er( wi t h an assumed deci mal poi nt ) . When bot h a r ai l r oad and hi ghway areunder t he st r uct ur e, code the most cr i t i cal di mensi on ( Ref er t o I t em 69

- Under cl ear ances, Hor i zont al - Tabl e 3B) .


55A Ref erence f eat ur e 1 di gi t55B Mi ni mum Lat eral Undercl ear ance 3 di gi t s

Usi ng one of t he codes bel ow, code i n t he f i r st posi t i on t he r ef er encef eat ur e f r om whi ch t he cl ear ance measur ement i s t aken:


H Hi ghway beneat h st r uct ur eR Rai l r oad beneat h st r uct ur eN Feat ur e not a hi ghway or r ai l r oad

I n t he next 3 posi t i ons, code a 3- di gi t number t o repr esent t he mi ni muml at er al under cl ear ance on t he r i ght . The l at er al cl ear ance shoul d bemeasured f r om t he r i ght edge of t he roadway ( excl udi ng shoul ders) orf r om t he cent er l i ne ( bet ween r ai l s) of t he r i ght - hand t r ack of ar ai l r oad t o t he near est subst r uct ur e uni t ( pi er , abut ment , et c. ) , t o ar i gi d bar r i er ( concr et e br i dge r ai l , et c. ) , or t o t he t oe of s l opest eeper t han 1 t o 3, e. g. 1 t o 1 or 2 to 1. The cl ear ance measurement st o be recor ded wi l l be the mi ni mum af t er measur i ng t he cl ear ance i n bothdi r ect i ons of t r avel . I n t he case of a dual hi ghway t hi s woul d mean t heout si de cl ear ances of bot h r oadways shoul d be measur ed and t he smal l erdi st ance recor ded and coded.

I f t wo rel at ed f eat ur es ar e bel ow t he br i dge, measur e bot h and r ecor dt he l esser of t he 2. An expl anat i on shoul d be wr i t t en on t he i nspect i onf orm as to what was recor ded. When t he cl ear ance i s 30 meters orgr eat er , code 999. Codi ng of actual cl ear ances bet ween 30 meters and99. 9 meters t o an exact measurement i s opt i onal .

I f t he f eat ur e beneat h t he st r uct ur e i s not a rai l r oad or hi ghway, codeN000 t o i ndi cat e not appl i cabl e.

The presence of r amps and accel er at i on or t urni ng l anes i s notconsi der ed i n t hi s i t em; t her ef or e, t he mi ni mum l at er al cl ear ance on t her i ght shoul d be measured f r om t he r i ght edge of t he thr ough r oadway.

EXAMPLES: Code

Rai l r oad 6. 22 met er s cent er l i ne t o pi er R062Hi ghway 6. 16 met er s edge of pavement t o pi er H062Cr eek beneat h st r ucture N000

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I t em 56 - Mi ni mum Lat er al Under cl ear ance on Lef t 3 di gi t s( XX. X meters) ( code onl y f or di vi ded hi ghways, 1- wayst r eet s, and r amps; not appl i cabl e t o r ai l r oads)

Usi ng a 3- di gi t number, r ecord and code the mi ni mum l ateral under-cl ear ance on t he l ef t ( medi an si de f or di vi ded hi ghways) t o the near estt ent h of a meter ( wi t h an assumed deci mal poi nt ) . The l ater al cl ear anceshoul d be measur ed f r omt he l ef t edge of t he roadway ( excl udi ng shoul der s)t o t he near est subst r uctur e uni t , t o a r i gi d bar r i er , or t o t he t oe of

sl ope st eeper t han 1 t o 3. Ref er t o exampl es on page 34 under I t em 55 -Mi ni mum Lat eral Undercl ear ance on Ri ght .

I n t he case of a dual hi ghway, t he medi an si de cl ear ances of both r oadwaysshoul d be measured and t he smal l er di st ance r ecor ded and coded. I f t herei s no obst r uct i on i n t he medi an area, a notat i on of "open" shoul d ber ecor ded and 999 shoul d be coded. For cl ear ances gr eat er t han 30 meters,code 998. Codi ng of actual cl ear ances gr eat er t han 30 meters t o an exactmeasur ement i s opt i onal . Code 000 t o i ndi cat e not appl i cabl e.

I t em 57

( Reser ved)

I t ems 58 t hr ough 62 - I ndi cat e t he Condi t i on Rat i ngs

I n or der t o pr omot e uni f or mi t y bet ween br i dge i nspect or s, t hese gui del i neswi l l be used t o r ate and code I t ems 58, 59, 60, 61, and 62. The use oft he AASHTO Gui de f or Commonl y Recogni zed ( CoRe) St r uct ur al El ement s i s anaccept abl e al t er nat i ve t o usi ng t hese r at i ng gui del i nes f or I t ems 58, 59,60, and 62, pr ovi ded t he FHWA t r ansl ator comput er pr ogr am i s used t oconver t t he i nspect i on dat a t o NBI condi t i on r at i ngs f or NBI dat asubmi t t al .

Condi t i on r at i ngs ar e used t o descr i be t he exi st i ng, i n- pl ace br i dge ascompar ed t o t he as- bui l t condi t i on. Eval uat i on i s f or t he mat er i al sr el at ed, physi cal condi t i on of t he deck, super st r uct ur e, and subst r uct ur e

fhwa recording & coding guide for si&a - dec1995

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