design memorandum 2020-01 - nh

STATE OF NEW HAMPSHIRE 1 of 2 BRIDGE DESIGN MEMORANDUM

FROM: Loretta Girard Doughty, PE DATE: November 3, 2020 Administrator AT (Office): Bureau of Bridge Design SUBJECT: Design Memorandum 2020-01

Revised Temporary Barrier for Bridge Projects TO: Bureau of Bridge Design Staff, Bridge Design Consultants, FHWA, NHDOT Bureaus

The Bureau of Bridge Design is updating the Bridge Design Manual. During this process, certain design decisions are being issued for immediate implementation. Consequently, the Bridge Design Manual, Bridge Details, and Bridge Detail Sheets have been modified as follows: A. Bridge Design Manual:

Revised Chapter 7, Section 7.6.5 Temporary Barrier

B. Bridge Detail Sheets: Portable Concrete Barrier – Braced (Transition piece connects to Highway PCB Standard Plan

GR-23) Texas Restrained Barrier (X-Bolt) (Transition piece connects to Highway PCB Standard Plan

GR-23) Revised Portable Concrete Barrier – Braced (Transition piece connects to Highway PCB

Standard Plans GR-24 & GR-25) Revised Texas Restrained Barrier (X-Bolt) (Transition piece connects to Highway PCB

Standard Plans GR-24 & GR-25)

C. Special Provision: Item 606.41741 – Portable Concrete Barrier for Traffic Control - Bridge

D. Summary: The above noted revisions are being implemented to specify the following:

NHDOT policy for required use of temporary barrier for bridge projects.

Bridge Detail Sheets (.dgn and .pdf format) for use on bridge projects are located on the Bureau of Bridge Design web page: https://www.nh.gov/dot/org/projectdevelopment/bridgedesign/detailsheets/index.htm

The portable concrete barrier Bridge Detail Sheets will no longer be included in the contract plans.

E. Background:

This memorandum incorporates modifications to current NHDOT Bridge Design Manual and Bridge Detail Sheets and provides the modified details on the NHDOT Bridge Design Website.

For bridge construction, the workers are in close proximity to the portable concrete barrier (pcb). To protect the workers and the traveling public, the required deflection room behind the pcb shall be provided or a low deflection barrier shall be used for all phased bridge projects (preservation, rehabilitation, and new construction).

Item 606.41741, Portable Concrete Barrier for Traffic Control - Bridge shall be used for all bridge projects except as noted in Chapter 7, Section 7.6.5. The pcb to be used is the Braced or Texas Restrained

STATE OF NEW HAMPSHIRE 2 of 2 BRIDGE DESIGN MEMORANDUM

Barrier (X-Bolt) with the corresponding transition piece required to attach to the Highway pcb. The pcb

sheets will not be included in the contract plans. The Contractor can choose which barrier to have fabricated

and can obtain the pcb sheets from the Bridge Design Webpage:

https://www.nh.gov/dot/org/projectdevelopment/bridgedesign/detailsheets/index.htm

Both barriers have been successfully crash tested per requirements of updated NCHRP Report 350,

TL 3-11 (MASH TL-3). Both barriers remained connected with a dynamic deflection of approximately 27-

in. Each barrier has layout requirements and limitations as noted on their respective detail sheets and

Chapter 7, Section 7.6.5.

Two additional bridge pcb sheets have been added to the NHDOT Bridge Design Website. Both the

Braced and Texas Restrained Barrier (X-Bolt) pcb have been revised for a new transition piece that

connects to the new Highway Design MASH compliant pcb (NHDOT Standard Plan No. Gr-24 & 25). The

new Highway MASH pcb is an F-shape which matches the Texas Restrained Barrier shape. The Braced

barrier is a New Jersey shape which requires the transition piece to taper to an F-shape. A new transition

plan sheet has been included for each barrier type.

As stated in the 2016 FHWA memorandum, Joint Implementation Agreement for the AASHTO

Manual for Assessing Safety Hardware (MASH), “Temporary work zone devices, including portable

barriers, manufactured after December 31, 2019, must have been successfully tested to the 2016 edition of

MASH. Such devices manufactured on or before this date, and successfully tested to NCHRP Report 350 or

the 2009 edition of MASH, may continue to be used throughout their normal service lives.” Service life has

been defined for portable concrete barrier in the Notice to Contractors in the proposals.

This memorandum clarifies NHDOT’s policy for the use of a temporary barrier for bridge

construction projects and incorporates the details that shall be included in the contract plans.

F. Implementation:

This update to the Bridge Design Manual and Bridge Detail Sheets shall be implemented as of the date

of this memorandum and shall be used on all applicable projects.

Loretta Girard Doughty, PE

Administrator, Bureau of Bridge Design

Enclosures

https://www.nh.gov/dot/org/projectdevelopment/bridgedesign/detailsheets/index.htm

Chapter 7 Superstructure

NHDOT Bridge Design Manual v2.0 Page 7.6-16 January 2015

Revised November 2020

7.6.5 Temporary Barrier

Temporary barriers are used in work zone areas and shall be crash tested to be able to contain, redirect, and shield vehicles, as well as workers with a limited escape route.

January 7, 2016 FHWA memorandum states, “Temporary work zone devices, including portable barriers, manufactured after December 31, 2019, must have been successfully tested to the 2016 edition of MASH. Such devices manufactured on or before this date, and successfully tested to NCHRP Report 350 or 2009 edition of MASH, may continue to be used throughout their normal service life.”

A. Temporary Barrier Types

NHDOT preferred temporary barriers are listed as follows:

Portable Concrete Barrier – Braced:

o Crash tested by Midwest Roadside Safety: NY Box Beam Stiffening of Unanchored TCB, March 2008 per requirements of updated NCHRP Report 350, TL 3-11 (MASH TL-3). The FHWA approval letter B-239 (11/1/2012) is located at: https://safety.fhwa.dot.gov/roadway_dept/countermeasures/reduce_crash_severity/barriers/pdf/b239.pdf

o 20-ft. long Jersey-shape precast concrete barrier with a structural steel tube attached. The barrier system has been crash tested with a 27.6-in. dynamic deflection which will allow the braced barrier to be placed a minimum 12-in. from the back of the barrier to the edge of the deck, unanchored, since the barrier did not separate (i.e., stayed connected acting as one long unit).

o The barrier has a minimum radius of curvature of approximately 230-ft. Gaps created between structural tubes and concrete barrier, during a radial layout, shall be shimmed with 8”x8”x1/2” plates and fender washers to firmly attach structural tubing to barrier.

o The weight of one 20-ft. F-shape barrier segment is approximately 4.16-tons.

o For speeds greater than 45-mph, a minimum of two 20-ft. braced segments shall extend beyond the bridge work area before they can be flared or connected to NHDOT Highway Design portable concrete barrier. The final 20-ft. concrete segment shall be anchored to the ground as shown on the Bridge Detail Sheet.

o Layout and installation shall be according to the Bridge Detail Sheet: Portable Concrete Barrier – Braced located at: https://www.nh.gov/dot/org/projectdevelopment/bridgedesign/detailsheets/index.htm




Texas Restrained Barrier (X-Bolt):

o Crash tested by Texas Transportation Institute May 2005 per requirements of updated NCHRP Report 350, TL 3-11 (MASH TL-3). Test report is located at: https://static.tti.tamu.edu/tti.tamu.edu/documents/0-4692-1.pdf

o 10-ft. long F-shape precast concrete barrier with a steel bolts crossing at joints. The barrier system has been crash tested with a 27.0-in. dynamic deflection which will allow the braced barrier to be placed a minimum 12-in. from the back of the barrier to the edge of the deck, unanchored, since the barrier did not separate (i.e., stayed connected acting as one long unit).

o The barrier has a minimum radius of curvature of approximately 125-ft. and the relative angle that can be achieved between barrier segments is 4-degrees.

o The weight of one 10-ft. F-shape barrier segment is approximately 2.38-tons.

o For speeds greater than 45-mph, the 10-ft. long cross-bolt segments shall extend a minimum of 50-ft. beyond the bridge work area before they can be flared or connected to NHDOT Highway Design portable concrete barrier.

o The Bridge Detail Sheet: Portable Concrete Barrier – X-Bolt is located at: https://www.nh.gov/dot/org/projectdevelopment/bridgedesign/detailsheets/index.htm

Portable Concrete Barrier -Braced

Figure 7.6.5-1




5

NHDOT 12.5-ft. Highway Portable Concrete Barrier:

o The F-shape pcb is in compliance with the requirements of Manual for Assessing Safety Hardware (MASH 16) TL-3 and was tested through the Roadside Safety Research Program Pooled Fund Study No. TPF-5 (114), May 2017.

o The free standing barrier has a dynamic deflection of 5.28-ft.

o The Roadside Safety Pooled Fund Test Report is located at: https://www.roadsidepooledfund.org/wp-content/uploads/2017/04/TRNo607911-12-Final.pdf

o The weight of one 12.5-ft. F-shape barrier segment is approximately 2.84-tons.

o The 12.5-ft. Highway Portable Concrete Barrier (Highway Standard Plan GR-24 & GR-24) is located at: https://www.nh.gov/dot/org/projectdevelopment/highwaydesign/standardplans/index.htm

Portable Concrete Barrier –Texas X-Bolt

Figure 7.6.5-2

Highway Portable Concrete Barrier – NHDOT

Figure 7.6.5-3




Iowa DOT (BA-400) HP steel beam (concrete filled) with double nested standard beam guardrail:

o Crash tested by University of Nebraska-Lincoln (Steel H-section Barrier for temporary use on bridge decks) per requirements of NCHRP Report 350, TL 3-11. The FHWA approval letter HSA-10/B-117 (9/12/2003) is located at: https://safety.fhwa.dot.gov/roadway_dept/countermeasures/reduce_crash_severity/barriers/pdf/b117.pdf

o The HP steel beam (concrete filled) with double nested standard beam guardrail has been crash tested with a 9.5-in. dynamic deflection.

o The weight of HP steel beam (concrete filled) with double nested standard beam guardrail is approximately 321-lb/ft.

o The stacked HP steel beams are 29¼ -in. high and 13 5/8-in. depth that are anchored into the deck with ¾-in. diameter x 1¾-in. long ASTM A307 Grade B heavy hex bolt and a ¾-in. Red Head Multi-set II drop-in anchor.

o Plans are located at Iowa DOT Standard Road Plans – BA Series located at: https://www.iowadot.gov/design/SRP/IndividualStandards/eba400.pdf

B. Temporary Barrier Selection

The following is NHDOT Bridge Design’s policy for selecting temporary barrier for use on bridges, unless approved otherwise by the Bridge Design Chief:

Bridges on National Highway System (NHS); use MASH Test Level 3 (minimum).

Bridges not on NHS and speeds posted 45 mph; use MASH or NCHRP 350 Test Level 3 (minimum).

Bridges not on NHS and speeds posted 45 mph; use MASH or NCHRP 350 Test Level 2 (minimum).

For bridge construction, the workers are in close proximity to the portable concrete barrier (pcb). To protect the workers and the traveling public, the required deflection

Temporary Barrier Rail – Iowa BA-400

Figure 7.6.5-4


NHDOT Bridge Design Manual v2.0 .6-20 January 2015


room behind the pcb shall be provided or a low deflection barrier shall be used for all bridge projects (rehabilitation and new).

When developing phase construction on bridges, the following recommendations shall be considered:

1) New bridge decks and widenings:

o Use the maximum clear distance from behind the pcb to the edge of the deck while meeting the required lane widths and minimal phases. See Chapter 7, Section 7.7 Preservation and Rehabilitation of Structures for further information on developing phase construction and minimum lane widths.

o Use Item 606.41741, Portable Concrete Barrier for Traffic Control - Bridge, for all bridge projects except as noted below. This pcb is the Braced or Texas Restrained Barrier (X-Bolt). Do not include barrier sheets in the contract plans. The Contractor can choose which barrier to use and obtain the sheets from the Bridge Design Website for fabrication.

o For bridges on Tier 1 roads, the minimum clear distance from behind the pcb to the edge of the deck shall be 2-ft. (0.6-m). If 2-ft. (0.6-m) cannot be obtained, a 1-ft. clear distance behind the pcb to the edge of deck shall be approved by the Design Chief, or the use of an anchored pcb that has been MASH crash-tested. Avoid anchoring through precast concrete panels, if possible. If there is no other option, the panels need to be designed for loss of strains due to the possibility of the anchor hitting the strands.

o For bridges on Tier 2, 3, 4 or 5 roads, the minimum clear distance from behind the pcb to the edge of the deck shall be 1-ft. (0.3-m). If 1-ft. (0.3-m) cannot be obtained, an anchored pcb that has been MASH crash-tested shall be used or the Iowa DOT (BA-400) HP steel beam (concrete filled) for bridges not on NHS roads.

2) Rehabilitated bridge decks:

o See Chapter 7, Section 7.7 Preservation and Rehabilitation of Structures for further information on developing phase construction and minimum lane widths.

o Use Item 606.41741, Portable Concrete Barrier for Traffic Control - Bridge, for all rehabilitation work (e.g., deck patching, pavement and membrane removal, expansion joint work, and bridge curb and railing work); all roads. This pcb is the Braced or Texas Restrained Barrier (X-Bolt). Do not include barrier sheets in the contract plans. The Contractor can choose which barrier to use and obtain the sheets from the Bridge Design Website for fabrication.

3) Bridge decks not on NHS roads, requiring a lighter portable concrete barrier:

o Use Iowa DOT (BA-400) HP steel beam (concrete filled) with double nested standard beam guardrail. The weight of HP steel beam (concrete filled) with double nested standard beam guardrail is approximately 321-lb/ft.

606 11/5/2020 SSD: 8/13/2012, 01/10/16, 04/24/17 Page 1 of 1

PROJECT NAMEPROJECT NUMBER

November 5, 2020

S P E C I A L P R O V I S I O N

AMENDMENT TO SECTION 606 -- GUARDRAIL

Item 606.41741 – Portable Concrete Barrier for Traffic Control - Bridge

Add to 3.7:

3.7.5 Portable Concrete Barrier for Traffic Control - Bridge. Either of the following barriers are considered acceptable by the Department.

3.7.5.1 Braced. Braced portable concrete barrier shall consist of 20-foot-long sections and shall be braced and pinned as detailed on the contract plans or as otherwise approved.

3.7.5.2 Texas Restrained Barrier (TRB). The TRB portable concrete barrier shall consist of 10-foot-long sections and shall be connected as detailed on the contract plans or as otherwise approved.

3.7.5.3 Refer to NHDOT Bridge Design’s website (https://www.nh.gov/dot/org/projectdevelopment/bridgedesign/detailsheets/index.htm ) for the fabrication plans of the Braced and Texas Restrained Barrier (TRB) and their corresponding transition pieces to the Highway Design portable concrete barrier (GR-23 or GR-24, GR-25).

Amend to 4.4.2 to read:

4.4.2 Portable concrete barrier for traffic control of the type specified will be measured by the linear foot for barrier delivered and installed for use on the project. Relocating portable concrete barriers on the project will not be measured for payment.

Amend 5.3 to read:

5.3 The accepted quantity of permanent concrete barrier of the type specified and portable concrete barrier for traffic control of the type specified will be paid for at the contract unit price per linear foot.

Add to 5.3

5.3.6 No separate payment will be made for the required bracing, pinning, or connections of the portable concrete barrier for traffic control. All structural steel, steel rods and hardware will be subsidiary.

Add to Pay items and units:

606.41741 Portable Concrete Barrier for Traffic Control - Bridge Linear Foot

SAMPLE

B

AA

B

A

20'-0"

(TYP)

3'-3"

2'-

8"

(TYP)

2'-0"

(TYP)

2'-0"

(TYP)

2'-0"

6"

(T

YP)

7"

(T

YP)

2"

(T

YP)

6"

(TYP)

3 #4B1 (SPACE @ 5ƒ")

(TYP)

#4B1

(TYP)

4'-2"

(TYP)

1'-3"

(TYP)

4'-3"

CL

EA

R

6"

5'-0"3 #4B1 (2 SP. @ 5'-0")5'-0"

(TYP)

4"

9"6"9"

2'-0"

6"

1'-

1"

1'-

0"

7"

1'-

7"

10"

3"

1'-

1•

"

(TYP)

7"

(TYP)

2"

2'-

8"

2'-

0"

CL

EA

R

3"

CL

EA

R

3"

CL

EA

R

6"

4•

"4•

"

4•

"4•

"

1'-7"

1'-3"

2"

1"

1'-7"

1'-3"

1'-6"

1'-7"

1"

1"

1'-3"

1'-7"

1"

1"

1'-6"

1'-7"

2"

4•

"2"

5‚

"2"

2"

2•

"

1'-8‚

"

1"

6"

6"

1'-

8"

8"

3‚"

2"

STATE OF NEW HAMPSHIREDEPARTMENT OF TRANSPORTATION * BUREAU OF BRIDGE DESIGN

BRIDGE NO.TOWN

LOCATION

STATE PROJECT

BRIDGE SHEET

OF

FILE NUMBER

TOTAL SHEETSSHEET NO.FEDERAL PROJECT NO.

DESIGNED

DRAWN

QUANTITIES CHECKED

CHECKED

CHECKED

BY DATEDATE BYREVISIONS AFTER PROPOSAL

REV. DATE

ISSUE DATESHEET SCALE

AS NOTED

SUBDIRECTORY

English/BARRIER PCB-BRACED

.DGN LOCATOR

PORTABLE CONCRETE BARRIER - BRACED (1 OF 2)

ABH

ABH

------------

PJP

NHDOT 7/12

8/12 8/12

8/12

GENERAL NOTES

MATERIAL NOTES

1•" MINIMUM CLEAR COVER, UNLESS OTHERWISE NOTED.

(2) ALL REINFORCING STEEL SHALL BE AASHTO M31 (ASTM A615) GRADE 60. ALL REINFORCEMENT SHALL HAVE

NOTED.

BE SHOWN ON BARRIER. ALL EXPOSED EDGES OF CONCRETE SHALL BE CHAMFERED ƒ", UNLESS OTHERWISE

AND SHALL HAVE A SMOOTH UNIFORM SURFACE FREE OF DEFECTS AND IRREGULARTIES. CASTING DATE SHALL

(1) BARRIERS SHALL BE LIGHT COLORED CLASS AA CONCRETE, WITH MINIMUM COMPRESSIVE STRENGTH OF 4000 psi,

ONE BRACED BARRIER IS REQUIRED TO BE FULLY SET BEYOND EACH END OF BRIDGE WORK AREA.

OF THE BRIDGE WORK AREA, FOR SPEEDS GREATER THAN 45 MPH. FOR SPEEDS \ 45 MPH, A MINIMUM OF

(3) A MINIMUM OF TWO BARRIER UNITS, WITH BRACED JOINTS ARE REQUIRED TO BE PLACED BEYOND BOTH ENDS

LOCATIONCBATYPESIZEMARK # PIECESLENGTH

1"

REINFORCING SCHEDULE (PER 20' BARRIER UNIT)

5"I9#4B1

B2

B3

B4

B5

#6

#6

#6

#6 26"

2

2

2

4'-10"

19'-1"

19'-9"

1'-2"

LONGITUDINAL (BOTTOM)

STIRRUPS

LONGITUDINAL (TOP)

TRANSVERSE (BOTTOM)

TRANSVERSE (TOP)

2'-4"

NOT TO SCALE

THIS SHEET.

(7) DELINEATORS SHALL BE ATTACHED TO BARRIER USING AN APPROVED ADHESIVE MATERIAL OR AS SHOWN ON

NOT TO SCALE

TYPE "I" REBAR

(RADIUS)

CÀ

TYPE "II" REBAR

5"II9#4B6 2'-9" STIRRUPS1'-3"

8/15/12

FABRICATED IN ACCORDANCE WITH SECTION 550.

(3) STRUCTURAL STEEL, EXCEPT THE STEEL TUBES, SHALL BE ASTM A36 OR A572. ALL STEEL SHALL BE

LINE MARKINGS.

DELINEATORS SUPPLEMENT, BUT DO NOT REPLACE, THE NEED FOR RETROREFLECTIVE SOLID EDGE

COLOR OF DELINEATORS SHALL, IN ALL INSTANCES, CONFORM TO THE COLOR OF EDGE LINE MARKINGS.

TO ITEM 606.41741 (SEE STANDARD NO. DL-1 OF NHDOT STANDARD PLANS FOR ROAD CONSTRUCTION). THE

INTERVALS ALONG TOP AND/OR ONE FOOT DOWN THE SIDE OF PORTABLE CONCRETE BARRIER, SUBSIDIARY

(6) THE CONTRACTOR SHALL FURNISH AND INSTALL APPROVED RETROREFLECTIVE DELINEATORS AT 25-FOOT

BRIDGE WORK THE LAST BARRIER UNIT DOES NOT REQUIRE ANCHORAGE.

IF THE END(S) OF THE BRACED CONCRETE BARRIER SYSTEM EXTENDS 50' OR MORE BEYOND LIMITS OF

INSTALLED WITH 5 ANCHORS ON THE TRAFFIC SIDE OF BARRIER AND 4 ON THE CONSTRUCTION SIDE.

MINIMUM 18" BELOW THE ROADWAY SURFACE. REQUIRED 1" Â ANCHOR RODS (A36 STEEL) SHALL BE

(4) THE LAST CONCRETE BARRIER UNIT, AT EACH END OF BRACED BARRIER LAYOUT, SHALL BE ANCHORED A

SYSTEMS SHALL BE 20' LONG.

SHALL BE FABRICATED IN ACCORDANCE WITH SPECIAL PROVISIONS. ALL BARRIER UNITS FOR BRACED

PORTABLE CONCRETE BARRIER FOR TRAFFIC CONTROL (BRIDGE). CONCRETE BARRIER AND ALL ATTACHMENTS

(1) PORTABLE CONCRETE BARRIER SHALL BE FURNISHED BY THE CONTRACTOR AND PAID FOR AS ITEM 606.41741

BRIDGE DECK.

DEFLECTION WHICH WILL ALLOW BRACED BARRIER TO BE PLACED A MINIMUM 12" FROM THE EDGE OF

LETTER B-239 (11/1/2012). THE BARRIER SYSTEM HAS BEEN CRASH TESTED WITH A 27.6" DYNAMIC

ROADSIDE SAFETY; NY BOX BEAM STIFFENING OF UNANCHORED TCB, MARCH 2008, AND ACCEPTED PER FHWA

PER UPDATED NCHRP REPORT 350 FOR TEST NO. 3-11 (MASH TEST LEVEL 3), CRASH TESTED BY MIDWEST

(2) PORTABLE CONCRETE BARRIER DETAILS, AS SHOWN IN THESE PLANS, ARE IN COMPLIANCE WITH REQUIREMENTS

WITH SECTION 550.

(5) ALL STEEL FOR CONNECTION KEY AND TRANSITION KEY ASSEMBLIES SHALL BE GALVANIZED IN ACCORDANCE

BE GALVANIZED IN ACCORDANCE WITH SECTION 550.

(4) STEEL TUBES, 6" x 6" x ‰" & 4" x 4" x •", SHALL BE ASTM A 500 GRADE B OR C. ALL TUBES SHALL

APPROXIMATELY 400 LBS./FT.

SHALL BE INSTALLED TO EACH BARRIER UNIT. TWENTY FOOT LONG CONCRETE BARRIER UNITS ARE

(6) A MINIMUM OF 2 LIFTING DEVICES, EACH WITH THE CAPACITY TO LIFT A MASS OF 6 TONS (MINIMUM),

STRUCTURAL TUBING TO BARRIER.

RADIAL LAYOUT, SHALL BE SHIMMED WITH 8" x 8" x •" PLATES & FENDER WASHERS TO FIRMLY ATTACH

230' MINIMUM RADIUS. GAPS CREATED BETWEEN STRUCTURAL TUBES AND CONCRETE BARRIER, DURING A

(5) PORTABLE CONCRETE BARRIER FOR TRAFFIC CONTROL (BRIDGE), ITEM 606.41741, MAY BE INSTALLED WITH A

THIS SHEET

SHALL BE MADE TO

NO MODIFICATIONS

PLAN GR-23, PCB NCHRP 350

HIGHWAY STANDARD

ONLY FOR USE WITH

PCB ON THE NHS"

"SUNSETTING OF NON-MASH

SEE NOTICE TO CONTRACTORS

6/1/20

SCALE: 1' = 1'-0"

ELEVATION

SCALE: 1' = 1'-0"

PLAN

(TYP)

1‚" Â ANCHOR HOLE

SCALE: 1" = 1'-0"

TYPICAL SECTION

#4B1

2 #6B2

2 #6B3

(TYP)

#6B5

#6B3

#6B2

#6B4

#6B5

#6B2#6B3

(OPTIONAL PROVISION FOR LIFTING DEVICE)

1•" Â I.D. PVC SLEEVE THROUGH BARRIER (TYP)


#6 REINFORCING BAR, SKEWED (TYP)

DRAINAGE SLOT (TYP)

À 12" X 2"

3" (TYP)

(1•" I.D. PVC SLEEVE OR #6 REBAR SKEWED) (TYP)

À OPTIONAL LIFTING DEVICES

(SEE GENERAL NOTE #4)

1‚" Â ANCHOR HOLE (TYP)

(TYP)

#6B4

TRAFFIC SIDE

CONSTRUCTION SIDE

(TYPICAL @ ANCHOR HOLES)

#4B6

(TYP)

STRUCTURAL TUBING CONNECTIONS

‡" Â PVC SLEEVE FOR

#6B5 (TRANSVERSE TOP) (TYP)

#6B4 (TRANSVERSE BOTTOM) (TYP)

(SEE STRUCTURAL TUBING DETAILS)

À ‡ I.D. PVC SLEEVES (TYP)

(ALTERNATE AS SHOWN)

#4B6 (TYP)

(SEE JOINT ASSEMBLY)

4" x 4" x •" STEEL TUBE (TYP)

(TYP)

JOINT ASSEMBLY (SHOWN DASHED)

#4B1#4B1#4B1

ANCHOR RODS)

(À 1‚" Â HOLE FOR

5ƒ" (TYP)

SCALE: 1" = 1'-0"

TYPICAL SECTION

(TYP)

R = 10"

R = 1" (TYP)

STIRRUPS @ ANCHOR HOLES)

#4B6 (ALTERNATE

LIFTING DEVICE)

(OPTIONAL PROVISION FOR

#6 REINFORCING BAR (SKEWED)

LIFTING DEVICE)


À - 1•" I.D. PVC SLEEVE

TUBING SECTIONS)

(SEE BARRIER & STRUCTURAL

‡" I.D. PVC SLEEVE

(TYP)

6"

(TYP)‚

2" x ‚" PLATE

(TYP)‚

2" x ‚" PLATE

(TYP)‚

(TYP)‚

2" x ‚" PLATE

2" x ‚" PLATE

(TYP)‚

JOINT CONNECTION DETAILS

(LOWER CONNECTIONS - ALTERNATE)

SECTION B-B

(UPPER CONNECTION)

SECTION A-A

(LOWER CONNECTION)

SECTION B-B

(UPPER CONNECTION)

ELEVATION

(UPPER CONNECTION - ALTERNATE)

ELEVATION

SCALE: 1•" = 1'-0" (EXCEPT AS NOTED)

NOT TO SCALE

STEEL TUBE (TYP)

4" x 4" x •"KEY

CONNECTION

CONNECTION JOINT DETAIL

SCALE: 1•" = 1'-0"

JOINT ASSEMBLY

(TYP)‚

UPPER JOINT CONNECTION

STEEL TUBE

4" x 4" x •"

CONNECTIONS

LOWER JOINT

(TYP)‚

BB

AA

END VIEW

(TYP)Š

(TYP)Š 1"

R = ƒ" (TYP)

2

19

DD

C

C

Š

(TYP)

1•" x 1" STIFFENER

•" COVER PLATE

SECTION C-C

CONNECTION KEY ASSEMBLY DETAILS

SCALE: 1•" = 1'-0"

STIFFENER

1•" x 1"

TOP OF BARRIER)

(INSTALL FLUSH WITH

•" COVER PLATE


MEDIAN BARRIER DELINEATOR

RETROREFLECTIVE CONCRETE

(SEE TYPICAL SECTION)

CONNECTION KEY

Š

(TYP)

3 - •" PLATES

SCALE: 3" = 1'-0"

(CONNECTION KEY)

SECTION D-D

6'-0"6'-0"

6"4'-3"1'-3"1'-3"4'-3"6"

12'-0" LONG STRUCTURAL TUBE (SPLICES NOT PERMITTED)

2'-8"

9…

"

‚ "

MINIMUM

‚ "‚ "

MINIMUM

‚ "

9…

"

10"

10"

2"

1‚"

6"

4"

1'-

2"

5„

"4"

1'-

2"

3„

"

2‚

"

(T

YP)

2'-

2‚

"

(TYP)

4†"

8"

1'-

2"

4"

7„

"1'-

2"

4„

"

‚"

1"


BRIDGE NO.TOWN

LOCATION

STATE PROJECT

BRIDGE SHEET

OF

FILE NUMBER


DESIGNED

DRAWN

QUANTITIES CHECKED

CHECKED

CHECKED


REV. DATE


AS NOTED

SUBDIRECTORY

English/BARRIER PCB-BRACED

.DGN LOCATOR


ABH

ABH

------------

PJP

NHDOT 7/12

8/12 8/12

8/12

8/15/12

THIS SHEET

SHALL BE MADE TO

NO MODIFICATIONS

OF NON-MASH PCB ON THE NHS"

SEE NOTICE TO CONTRACTORS "SUNSETTING

STANDARD PLAN GR-23, PCB NCHRP 350

ONLY FOR USE WITH HIGHWAY

6/1/20

NOT TO SCALE

PLAN - BARRIER LAYOUT

BRIDGE WORK AREA

FOR ROAD CONSTRUCTION)

(REFER TO NHDOT STANDARD PLANS

SHALL BE EXTENDED AS REQUIRED

PORTABLE CONCRETE BARRIER

(TYP)

STRUCTURAL TUBE & CONNECTIONS

SPEEDS GREATER THAN 45 MPH (TYP)

REQUIRED BEYOND BRIDGE WORK AREA FOR

MINIMUM 2 BRACED CONCRETE BARRIER UNITS

SPEEDS \ 45 MPH (TYP)


MINIMUM 1 BRACED CONCRETE BARRIER UNIT(SEE ANCHORAGE DETAIL)

BRACED SYSTEM SHALL BE ANCHORED (TYP)

BARRIER UNIT AT END OFREQUIRED WITHIN BRACED BARRIER LAYOUT)

PORTABLE CONCRETE BARRIER (20' LONG UNITS

JOINTS OF BRACED BARRIER LAYOUT)

CONNECTION JOINT (TYPICAL @ INTERIOR END SECTION OF BRACED BARRIER LAYOUT)

TRANSITION JOINT (TYPICAL @ EACH

SCALE: ƒ" = 1'-0"

STRUCTURAL TUBING DETAILS

(TYP)

8" x 8" x •" PLATE

(TYP)

OUTSIDE CONNECTION

(TYP)

INSIDE CONNECTION

(TYP)

1•" Â HOLE(TYP)

3" Â HOLE

SCALE: ƒ" = 1'-0"

ANCHORAGE DETAIL

ROADWAY SURFACE

(SEE GENERAL NOTES #4)

MINIMUM 2'-4" LONG (TYP)

1" Â ANCHOR ROD

(TYP)

18" MINIMUM

STRUCTURAL TUBE

6" x 6" x ‰"

SCALE: 2" = 1'-0"

BARRIER & STRUCTURAL TUBING SECTIONS

SECTION WITHOUT SHIMS SECTION WITH SHIMS

(TYP)

3" NUT

TRAFFIC SIDE CONSTRUCTION SIDE

WITH ‡" Â HOLE

8" x 8" x •" PLATE

90°


90°

WITH ‡" Â HOLE

8" x 8" x •" PLATES

FENDER WASHERS

‡" I.D. PVC SLEEVE(SEE NOTES ABOVE)


AFFECT THE REUSE OF CONCRETE BARRIER UNITS

THE PRESENCE OF NORMAL HOLES WHICH HAVE BEEN MODIFIED/DRILLED WILL NOT

ALIGN STRUCTURAL TUBE BRACING UNITS FOR CURVED ALIGNMENTS

PVC SLEEVE OPENINGS SHALL BE MODIFIED/DRILLED AS REQUIRED TO PROPERLY

(GRADE 5)

ƒ" Â THREADED ROD

(3" NOMINAL O.D.)

FENDER WASHER

(TYP)

3" NUT

(GRADE 5)

ƒ" Â THREADED ROD

(3" NOMINAL O.D.)

FENDER WASHER

STRUCTURAL TUBE

6" x 6" x ‰"

STRUCTURAL TUBE

6" x 6" x ‰"

SCALE: ƒ" = 1'-0"

TRAFFIC SIDEWITH WASHERS (TYP)

SHIM OUTSIDE CONNECTION

TRAFFIC SIDE WITH WASHERS (TYP)

SHIM INSIDE CONNECTION

TUBE CONNECTIONS (CURVED ALIGNMENT)

WORK AREA OUTSIDE CURVE

WORK AREA INSIDE CURVE

CONNECTION JOINT

CONNECTION JOINT

Š

(TYP)

•" PLATES

SCALE: 2" = 1'-0"

TYPICAL SECTION

(TRANSITION KEY)

(2.875" O.D., 1.771" I.D.)

DOUBLE - EXTRA STRONG PIPE

SCALE: 2" = 1'-0"

TRANSITION KEY ELEVATIONS

CONCRETE BARRIER (TYP)

#6 CONNECTION BARS FOR PORTABLE

À APPROXIMATE LOCATION

(TYP)

FOR CONCRETE BARRIER CONNECTION BARS

1ƒ" OPENING BETWEEN PIPE SECTIONS

(TYP)

•" PLATES

(TYP)

SECTIONS

PIPE

TRANSITION JOINT DETAILS

STEEL TUBE (TYP)

4" x 4" x •"

KEY

TRANSITION

(HOOKED ENDS)

#6 CONNECTION BAR

LINKING PIN

NOT TO SCALE

2…"3†"1'-1"5"

10'-0"

5"1'-1"3†"2…"

2‚

"

9•

"

8†

"

3•

"

4•

"

3†

"

2'-0"

2'-0"

2'-0"

2'-0"

2'-0"

2"

2"

19 #5T3 (BOT) SPL W/#5T1 & #5T2

#5

T4

NS

&

FS

AS

SH

OW

N

13 #5T1 , 12 SP @ 6" = 6'-0"9•"

2'-

8"

1'-

10"

7"

3"

11"

6"

1'-3"

2"

(TYP)

2•"

(TYP)

4ƒ"

2'-0"

9"6"9"

1…"

11„"

10•"

3ƒ

"

9…"

9…"

11„"

6‹

"5

Ž"

5Ž

"6‹

"

SUBDIRECTORY

X-Bolt Barrier

.DGN LOCATOR

XX

XX XXX\XXX XX

XX XX

XX/XXXXXXX-X-X

------------

XX/XXXXX

AS NOTED

GENERAL NOTES:

BARRIER WEIGHT APPROX. 2.38 TONS

GMC 1/18

MATERIAL NOTES:

CHAMFERED ƒ", UNLESS OTHERWISE NOTED.

CASTING DATE SHALL BE SHOWN ON BARRIER. ALL EXPOSED EDGES OF CONCRETE SHALL BE

4000 psi, AND SHALL HAVE A SMOOTH UNIFORM SURFACE FREE OF DEFECTS AND IRREGULARITIES.

1. BARRIERS SHALL BE LIGHT COLORED CLASS AA CONCRETE, WITH COMPRESSIVE STRENGTH OF

4. ALL STEEL FOR CONNECTIONS SHALL BE GALVANIZED IN ACCORDANCE WITH SECTION 550.

FHWA/TX-05/0-4692-1.

CRASH TESTED BY TEXAS A&M UNIVERSITY SYSTEM, MAY 2005, AND ACCEPTED PER REPORT

REQUIREMENTS PER UPDATED NCHRP REPORT 350 FOR TEST NO 3-11 (MASH TEST LEVEL 3),

2. PORTABLE CONCRETE BARRIER DETAILS, AS SHOWN ON THESE PLANS, ARE IN COMPLIANCE WITH

BARRIER TO BE PLACED A MINIMUM 12" FROM THE EDGE OF THE DECK.

3. THE BARRIER HAS BEEN CRASH TESTED WITH A 27" DYNAMIC DEFLECTION WHICH WILL ALLOW THE

SHOWN ON SHEET 2 OF 3.

THE TRANSITION UNIT AND THEN TO NHDOT PCB FLARED OUT THE REQUIRED CLEAR ZONE AS

END, PARALLEL TO THE ROADWAY CENTERLINE. THE ENDS OF THE BARRIER SHALL CONNECT TO

UNITS). THE X-BOLT BARRIER SHALL EXTEND A MINIMUM OF 50' BEYOND THE BRIDGE AT EACH

4. USAGE OF THE TEXAS X-BOLT BARRIER REQUIRES A MINIMUM OF 100 LINEAR FEET (10 - 10'

CONFIRMING THEY MEET THE TIGHTENED REQUIREMENT.

AFTER INSTALLATION, ALL X-BOLT JOINTS SHALL BE CHECKED BY THE CONTRACT ADMINISTRATOR

NUT" METHOD IN ACCORDANCE WITH SECTION 550.3.11.6.4 OF NHDOT STANDARD SPECIFICATIONS.

5. THE CONNECTION BOLTS AT THE BARRIER JOINTS SHALL BE TIGHTENED TO THE "TURN OF THE

AND A RELATIVE ANGLE OF 4 DEGREES BETWEEN THE 10' UNITS.

6. THE TEXAS X-BOLT BARRIER MAY BE INSTALLED WITH A 125' MINIMUM RADIUS OF CURVATURE

REPLACE, THE NEED FOR RETROREFLECTIVE SOLID EDGE LINE MARKINGS.

CONFORM TO THE COLOR OF THE EDGE LINE MARKINGS. DELINEATOR SUPPLEMENT, BUT DO NOT

PLANS FOR ROAD CONSTRUCTION). THE COLOR OF THE DELINEATORS SHALL, IN ALL INSTANCES,

BARRIER, SUBSIDIARY TO ITEM 606.41741 (SEE STANDARD NO. DL-1 OF NHDOT STANDARD

25-FOOT INTERVALS ALONG TOP AND/OR ONE FOOT DOWN THE SIDE OF PORTABLE CONCRETE

7. THE CONTRACTOR SHALL FURNISH AND INSTALL APPROVED RETROREFLECTIVE DELINEATORS AT

TEXAS RESTRAINED BARRIER (X-BOLT) (1 OF 3)


BRIDGE NO. STATE PROJECTTOWN

LOCATION

REVISIONS AFTER PROPOSAL

SHEET SCALE

DESIGNED

DRAWN

QUANTITIES

REV. DATE

ISSUE DATE FEDERAL PROJECT NO. SHEET NO. TOTAL SHEETS

FILE NUMBER

OF

BRIDGE SHEET

DATEBY

CHECKED

CHECKED

CHECKED

DATEBY

SHALL HAVE 1ƒ" MINIMUM CLEAR COVER, UNLESS OTHERWISE NOTED.

2. ALL REINFORCING STEEL SHALL BE AASHTO M31 (ASTM A615) GRADE 60. ALL REINFORCEMENT

ALL BARRIER UNITS SHALL BE 10' LONG.

BARRIER AND ALL ATTACHMENTS SHALL BE FABRICATED IN ACCORDANCE WITH SPECIAL PROVISIONS.

ITEM 606.41741, PORTABLE CONCRETE BARRIER FOR TRAFFIC CONTROL (BRIDGE). CONCRETE

1. PORTABLE CONCRETE BARRIER SHALL BE FURNISHED BY THE CONTRACTOR AND PAID FOR AS

ASTM A36 STEEL.

TO ASTM A325. STEEL PIPES, PLATE WASHERS, AND CONNECTION PLATES SHALL BE GALVANIZED

3. CONNECTION BOLTS SHALL BE ‡" Â GALVANIZED HIGH STRENGTH THREADED RODS CONFORMING

TXDOT NHDOT

NHDOT

4/18

4/18

THIS SHEET

SHOULD BE MADE TO

NO MODIFICATIONS

12/10

standard\english\barrier

5/15/18





6/1/20

SCALE: 1•" = 1'-0" SCALE: 1•" = 1'-0"

ELEVATION SCALE: 1•" = 1'-0"

END VIEW

AT ENDS

ƒ" CHAMFER

SECTION A-A

PIPE ASSEMBLY

UPPER CONNECTION

PIPE ASSEMBLY

LOWER CONNECTION

2/CONNECTION

8 #6T5 Ú

#5T1

#5T2

#5T3

2 #5T1

1 #5T2

2 #5T1

1 #5T2 SP AS SHOWN IN SECT A-A

8 #5T4, 4 NS, 4 FSA

A

(TYP)

R = 10"

(TYP)

R = 1"

SLOT (TYP)

2"x 24" DRAIN

& BARRIER

À (2) 1•" Â SCH 40 STEEL PIPES

SCALE: 1•" = 1'-0" SCALE: 1•" = 1'-0"

TOP VIEW CONNECTION POCKETS

LOWER CONNECTION PIPE

CONNECTION PLATE (TYP)

UPPER ASSEMBLY (TYP)

LOWER ASSEMBLY (TYP)

ADJACENT BARRIER SEGMENTS

UPPER CONNECTION PIPE

(SEE DETAILS)

OR THREADED ROD

CONNECTION BOLT

TYPE X JOINT CONNECTION DETAILS

UPPER POCKETLOWER POCKET

UPPER POCKET LOWER POCKET

(TYP)

90°-00'-00"

PRECAST BARRIER LENGTH (10'-0")

BEYOND THE CONCRETE FACE OF BARRIER

NOTE: CONNECTION HARDWARE SHALL NOT EXTEND

(TYP)

2/CONNECTION

#6T5 Ú

1'-0•"

2„"

6Œ

"

2'-

3"

1'-7"

4‚"5‚"

1'-9"

10†"

1'-9‚

"5ƒ

"

1'-4"

5"

1ƒ"

2„"

5Ž

"

3'-3"

6‚

"

3"

3"

2'-

3Ž

"1'-5‡

"9•

"

1'-8"

6‡"3„"

1…"

3'-4"

4'-1"

5"

1'-4"9'-8"

10•"

1'-0•"

•"

•"

4"

4"

3‚

"

4•

"

2‚

"

4"

2"

4•

"

1" MIN

1•"

1•

"

2'-5"

#5

#5

#5

#5

17

2

8

19

5'-2"

4'-0"

9'-8"

2'-1"

MK QTY LENGTH

XX

XX XXX\XXX XX

XX XX

XX/XXXXXXX-X-X

------------

XX/XXXXX

GMC 1/18

SUBDIRECTORY

X-Bolt Barrier

.DGN LOCATOR

AS NOTED


TRAFFIC

TRAFFIC

OR

WORK AREA

TRAFFIC

TRAFFIC

BARRIER (X-BOLT)

TEXAS RESTRAINED

ROADWAY CENTERLINE

50' MIN. PARALLEL TO

(SEE NOTE 5)

10:1

EDGE OF T.W.

15°

(NTS)

ROADWAY CENTERLINE


(SEE NOTE ABOVE)

ROADWAY CENTERLINE

END AS ORDERED. SEE MUTCD.

TRAFFIC OR ADEQUATELY PROTECT

THE CLEAR ZONE OF APPROACHING

TRAFFIC, FLARE PCB BEYOND

TRAFFIC ONLY. FOR TWO-WAY

DEPARTURE END FOR ONE-WAY

BLUNT END ACCEPTABLE ON

(SEE SHT 3 OF 3)

(10' TRANSITION UNIT)

TEXAS RESTRAINED BARRIER


STANDARD SHEET)

END AS ORDERED (SEE PCB

ZONE OR ADEQUATELY PROTECT

FLARE PCB BEYOND CLEAR

(SEE NHDOT PCB STANDARD SHEET)

BEGIN FLARE

CONCRETE BARRIER

NHDOT PORTABLE



LOCATION


SHEET SCALE

DESIGNED

DRAWN

QUANTITIES

REV. DATE


FILE NUMBER

OF

BRIDGE SHEET

DATEBY

CHECKED

CHECKED

CHECKED

DATEBY

T1

T2

T3

T4

T5 #6 8 3'-9"

#5

#5

#5

#5

9

1

8

10

5'-2"

4'-0"

9'-8"

2'-1"

MK QTY LENGTH

T1

T2

T3

T4

T5

#4 4T6

#5 4T7

#6 4 3'-9"

#5 2T8

#6 3T9

5'-2"

4'-6"

6'-10"

1'-4"

THIS SHEET

SHOULD BE MADE TO

NO MODIFICATIONS

(10' BARRIER)

TEXAS X-BOLT

REBAR SCHEDULE

(10' BARRIER)

TRANSITION

REBAR SCHEDULE

TXDOT 12/10 NHDOT 4/18

4/18NHDOT


5/15/18





6/1/20

SCALE: 1•" = 1'-0"

BENDING SCHEDULE

R = 2"

70°-00'-00"

GRADE 60 (3'-6")

#6 REINFORCING BARR = 2‚"

#5T3#5T2#5T1

R = 2"

R = 2"

R = 2"

R = 2"

#4T6

R = 1"

R = 2‚"

#6T9

#5T8 45°

#5T7

#6T5 Ú

#5T4

(BEND AROUND 2" Â PIN)

R = 1"

70°-00'-00"

SCALE: 1•" = 1'-0"

SCALE: 1•" = 1'-0"

PIPE DETAIL

LOWER CONNECTION

70°-00'-00"

STEEL PIPE

1•" Â SCH 40

STEEL PIPE

1•" Â SCH 40

PLATE DEAILS)

(SEE CONNECTION

Á 4" X 4•" x …"

PLATE DEAILS)

(SEE CONNECTION

Á 4" X 4•" x …"

PIPE DETAIL

UPPER CONNECTION

Á …" 1†" Â HOLE

STEEL PIPE

1•" Â SCH 40

WELDING DETAILS PLATE DIMENSIONS

SCALE: 2" = 1'-0"

#6T5 Ú (TYP)

CONNECTION PLATE DETAILS

‚

‚(TYP)

‚ ‚

1‚ - 1ƒ

THREADED ROD)

(OR EQUIVALENT

‡" Â A325

PLATE WASHER (TYP)

Á 3" X 3" x …"NUT (TYP)

STD ‡" HEXPLATE WASHER

Á 3" X 3" x …"

•" Â HOLE

SCALE: 1•" = 1'-0"

THREADED ROD DETAILS

CONNECTION BOLT OR

STEEL CONNECTION PLATE

TYPICAL WELD ASSEMBLY

ISOMETRIC VIEW OF

SCALE: N.T.S.

DETAILS" FOR WELDING DETAILS

NOTE: SEE "CONNECTION PLATE

CONNECTION PIPE

1•" Â SCH 40 STEEL

BAR ANCHORS

#6T5 Ú DEFORMED

5"1'-1"3†"2…"

10'-0"

2'-0"

2'-0"

2'-0"

2'-0"

2'-0"

2"

2"

7 #5T1 , 6 SP @ 6" = 3'-0"

4 #5T7 (BOT) SPL W/#4T6

3

#6

T9

1'-0"

4 #4T6 , 3 SP @ 12" = 3'-0"

1'-0"

2"

2'-

8"

#5

T4

#4T6 & #5T7#5T1 & #5T3 #5T1 & #5T3

5'-0" (TAPERED SECTION)

10 #5T3 (BOT) SPL W/#5T1 & #5T2

9•

"

8†

"

3•

"

4•

"

3†

"

#5

T4

NS

&

FS

AS

SH

OW

N

2‚

"

9•

"

8†

"

3•

"

4•

"

3†

"

2'-

8"

#5

T4

NS

&

FS

AS

SH

OW

N

2‚

"

6"

4"

1'-

2"

8"

9•"

2'-

8"

1'-1

0"

7"

3"

11"

6"

1'-3"

2"

(TYP)

2•"

(TYP)

4ƒ"

2"

6"

1'-

7"

10"

3"

4ƒ"

2"

(TYP)

7"

(TYP)

2"

2'-0"

6"

4"

1'-

2"

8"

9"6"9"

2'-0"

9"6"9"

3"

2'-

0"

4ƒ

"

2"2"

------------

XX

XX XXX\XXX XX

XX XX

XX/XXXXXXX-X-X

XX/XXXXX

GMC 1/18

AS NOTED

SUBDIRECTORY

X-Bolt Barrier

.DGN LOCATORBARRIER WEIGHT APPROX. 2.28 TONS




LOCATION


SHEET SCALE

DESIGNED

DRAWN

QUANTITIES

REV. DATE


FILE NUMBER

OF

BRIDGE SHEET

DATEBY

CHECKED

CHECKED

CHECKED

DATEBY

THIS SHEET

SHOULD BE MADE TO

NO MODIFICATIONSNOTES

PORTABLE CONCRETE BARRIER FOR TRAFFIC CONTROL (BRIDGE).

1. TEXAS RESTRAINED BARRIER (TRANSISTION UNIT) SHALL BE PAID FOR UNDER ITEM 606.41741,

2. SEE SHEET 1 OF 3 FOR NOTES AND SHEET 2 0F 3 FOR REBAR SCHEDULE.

TXDOT 12/10 NHDOT

NHDOT

4/18

4/18


5/15/18





6/1/20

SCALE: 1•" = 1'-0"

ELEVATION

SCALE: 1•" = 1'-0"

PLAN

TRANSITION BARRIER

TRANSITION BARRIER

#5T2 & #5T3

#5T8 Ú

A

A

B

B

2/CONNECTION

4 #6T5 Ú

SP AS SHOWN IN SECT A-A

8 #5T4, 4 NS, 4 FS

AT ENDS

ƒ" CHAMFER

2 #5T1

1 #5T2

UPPER ASSEMBLY

LOWER ASSEMBLY

1 NS, 1 FS

2 #5T8 Ú

#5T8 Ú

#6T9

SEE SHEETS 1 & 2

LOWER ASSEMBLY

SEE SHEETS 1 & 2

UPPER ASSEMBLY

SEE SHEETS 1 & 2

TEXAS X-BOLT BARRIER

SEE SHEETS 1 & 2

TEXAS X-BOLT BARRIER

SCALE: 1•" = 1'-0" SCALE: 1•" = 1'-0"

#5T3

#5T1

#5T2

SECTION A-A

(TYP)

#5T8 Ú

#5T7

#4T6

(TYP)

#6T9

R = 1" (TYP)

VIEW B-B

SCALE: 1•" = 1'-0"

(TYP)

R = 10"

(TYP)

R = 1"

SLOT (TYP)

2"x 24" DRAIN

END VIEW SECTION A-ASCALE: 1•" = 1'-0"

VIEW B-B

(TYP)

R = 10"

(TYP)

R = 1"

SLOT (TYP)

2"x 24" DRAIN

(TYP)

#6T9

& BARRIER


SCALE: 1" = 1'-0"

PLACEMENT.

BEVELED TO FACILITATE

BOTTOM •" MAY BE

CONNECTOR PIN ASSEMBLY

(„" MIN THICKNESS)

CIRCULAR WASHER

2•" OUTSIDE DIA

‚

A36 STEEL ROD

1‚" Â

TAC WELDED

1‚" NUT TO BE

1‚" Â x 6 UNC

SCALE: 2" = 1'-0"

(BEND AROUND 2" Â PIN (TYP))

#6 CONNECTION BAR W/HOOKED ENDS

2"

(AT VIEW B-B

END NOTCH DETAIL

ISOMETRIC BARRIER VIEW

(TYP)

3'-3"

(TYP)

2'-0"

(TYP)

2'-0"

(TYP)

2'-0"

(T

YP)

7"

(T

YP)

2"

(T

YP)

6"

(TYP)

#4B1

(TYP)

4'-2"

(TYP)

1'-3"

(TYP)

4'-3"

CL

EA

R

6"

(TYP)

7"

(TYP)

2"

CL

EA

R

3"

CL

EA

R

6"

20'-0"

2'-

8"

6"

(TYP)

4"

9"6"9"

2'-0"

6"

1'-

1"

1'-

0"

7"

1'-

7"

10"

3"

1'-

1•

"

2'-

8"

2'-

0"

CL

EA

R

3"

5'-0"3 #4B1 (2 SP. @ 5'-0")5'-0"

(TYP)

3 #4B1 (SPACE @ 5ƒ")

4•

"4•

"

4•

"4•

"

1'-7"

1'-3"

2"

1"

1'-7"

1'-3"

1'-6"

1'-7"

1"

1"

1'-3"

1'-7"

1"

1"

1'-6"

1'-7"

2"

4•

"2"

5‚

"2"

2"

2•

"

1'-

8‚

"

1"6"

6"

1'-8"

8"

3‚"

2"


BRIDGE NO.TOWN

LOCATION

STATE PROJECT

BRIDGE SHEET

OF

FILE NUMBER


DESIGNED

DRAWN

QUANTITIES CHECKED

CHECKED

CHECKED


REV. DATE


AS NOTED

SUBDIRECTORY

English/BARRIERPCB-BRACED_Revised Transition

.DGN LOCATOR


ABH

ABH

------------

PJP

NHDOT 7/12

8/12 5/20

8/12

GENERAL NOTES

MATERIAL NOTES

NOTED.

BE SHOWN ON BARRIER. ALL EXPOSED EDGES OF CONCRETE SHALL BE CHAMFERED ƒ", UNLESS OTHERWISE

AND SHALL HAVE A SMOOTH UNIFORM SURFACE FREE OF DEFECTS AND IRREGULARTIES. CASTING DATE SHALL

(1) BARRIERS SHALL BE LIGHT COLORED CLASS AA CONCRETE, WITH MINIMUM COMPRESSIVE STRENGTH OF 4000 psi,

ONE BRACED BARRIER IS REQUIRED TO BE FULLY SET BEYOND EACH END OF BRIDGE WORK AREA.

OF THE BRIDGE WORK AREA, FOR SPEEDS GREATER THAN 45 MPH. FOR SPEEDS \ 45 MPH, A MINIMUM OF

(3) A MINIMUM OF TWO BARRIER UNITS, WITH BRACED JOINTS ARE REQUIRED TO BE PLACED BEYOND BOTH ENDS

THIS SHEET.

(7) DELINEATORS SHALL BE ATTACHED TO BARRIER USING AN APPROVED ADHESIVE MATERIAL OR AS SHOWN ON

8/15/12

FABRICATED IN ACCORDANCE WITH SECTION 550.

(3) STRUCTURAL STEEL, EXCEPT THE STEEL TUBES, SHALL BE ASTM A36 OR A572. ALL STEEL SHALL BE

BRIDGE WORK THE LAST BARRIER UNIT DOES NOT REQUIRE ANCHORAGE.

IF THE END(S) OF THE BRACED CONCRETE BARRIER SYSTEM EXTENDS 50' OR MORE BEYOND LIMITS OF

INSTALLED WITH 5 ANCHORS ON THE TRAFFIC SIDE OF BARRIER AND 4 ON THE CONSTRUCTION SIDE.

MINIMUM 18" BELOW THE ROADWAY SURFACE. REQUIRED 1" Â ANCHOR RODS (A36 STEEL) SHALL BE

(4) THE LAST CONCRETE BARRIER UNIT, AT EACH END OF BRACED BARRIER LAYOUT, SHALL BE ANCHORED A

BRIDGE DECK.

DEFLECTION WHICH WILL ALLOW BRACED BARRIER TO BE PLACED A MINIMUM 12" FROM THE EDGE OF

LETTER B-239 (11/1/2012). THE BARRIER SYSTEM HAS BEEN CRASH TESTED WITH A 27.6" DYNAMIC

ROADSIDE SAFETY; NY BOX BEAM STIFFENING OF UNANCHORED TCB, MARCH 2008, AND ACCEPTED PER FHWA

PER UPDATED NCHRP REPORT 350 FOR TEST NO. 3-11 (MASH TEST LEVEL 3), CRASH TESTED BY MIDWEST

(2) PORTABLE CONCRETE BARRIER DETAILS, AS SHOWN IN THESE PLANS, ARE IN COMPLIANCE WITH REQUIREMENTS

WITH SECTION 550.

(5) ALL STEEL FOR CONNECTION KEY AND TRANSITION KEY ASSEMBLIES SHALL BE GALVANIZED IN ACCORDANCE

BE GALVANIZED IN ACCORDANCE WITH SECTION 550.

(4) STEEL TUBES, 6" x 6" x ‰" & 4" x 4" x •", SHALL BE ASTM A 500 GRADE B OR C. ALL TUBES SHALL

STRUCTURAL TUBING TO BARRIER.

RADIAL LAYOUT, SHALL BE SHIMMED WITH 8" x 8" x •" PLATES & FENDER WASHERS TO FIRMLY ATTACH

230' MINIMUM RADIUS. GAPS CREATED BETWEEN STRUCTURAL TUBES AND CONCRETE BARRIER, DURING A

(5) PORTABLE CONCRETE BARRIER FOR TRAFFIC CONTROL (BRIDGE), ITEM 606.41741, MAY BE INSTALLED WITH A

THIS SHEET

SHALL BE MADE TO

NO MODIFICATIONS

1•" MINIMUM CLEAR COVER, UNLESS OTHERWISE NOTED. SEE SHEET 3 OF 3 FOR REBAR SCHEDULE.

(2) ALL REINFORCING STEEL SHALL BE AASHTO M31 (ASTM A615) GRADE 60. ALL REINFORCEMENT SHALL HAVE


SHALL BE INSTALLED TO EACH BARRIER UNIT.

(6) A MINIMUM OF 2 LIFTING DEVICES, EACH WITH THE CAPACITY TO LIFT A MASS OF 6 TONS (MINIMUM),

BARRIER UNITS FOR BRACED SYSTEMS SHALL BE 20' LONG.

BARRIER AND ALL ATTACHMENTS SHALL BE FABRICATED IN ACCORDANCE WITH SPECIAL PROVISIONS. ALL

PAID FOR AS ITEM 606.41741 PORTABLE CONCRETE BARRIER FOR TRAFFIC CONTROL (BRIDGE). CONCRETE

(1) PORTABLE CONCRETE BARRIER, INCLUDING TRANSITION UNIT, SHALL BE FURNISHED BY THE CONTRACTOR AND

SOLID EDGE LINE MARKINGS.

OF EDGE LINE MARKINGS. DELINEATORS SUPPLEMENT, BUT DO NOT REPLACE, THE NEED FOR RETROREFLECTIVE

FOR ROAD CONSTRUCTION). THE COLOR OF DELINEATORS SHALL, IN ALL INSTANCES, CONFORM TO THE COLOR

CONCRETE BARRIER, SUBSIDIARY TO ITEM 606.41741 (SEE STANDARD NO. DL-1 OF NHDOT STANDARD PLANS

OR/WITH A MAXIMUM OF 25-FOOT INTERVALS ALONG TOP AND/OR ONE FOOT DOWN THE SIDE OF PORTABLE

(6) THE CONTRACTOR SHALL FURNISH AND INSTALL APPROVED RETROREFLECTIVE DELINEATORS ON EACH BARRIER

6/1/20

SCALE: 1' = 1'-0"

ELEVATION

SCALE: 1' = 1'-0"

PLAN

(TYP)


SCALE: 1" = 1'-0"

TYPICAL SECTION

2 #6B2

2 #6B3

(TYP)

#6B5

#6B3

#6B2#6B3





DRAINAGE SLOT (TYP)

À 12" X 2"

3" (TYP)





(TYP)

#6B4

TRAFFIC SIDE

CONSTRUCTION SIDE

(TYP)

STRUCTURAL TUBING CONNECTIONS

‡" Â PVC SLEEVE FOR

#6B5 (TRANSVERSE TOP) (TYP)

#6B4 (TRANSVERSE BOTTOM) (TYP)


À ‡ I.D. PVC SLEEVES (TYP)



(TYP)

JOINT ASSEMBLY (SHOWN DASHED)

#4B1#4B1#4B1

ANCHOR RODS)


5ƒ" (TYP)

SCALE: 1" = 1'-0"

TYPICAL SECTION

(TYP)

R = 10"

R = 1" (TYP)

LIFTING DEVICE)



LIFTING DEVICE)



TUBING SECTIONS)



(TYP)

6"


#4B6 ß (ALTERNATE


#4B6 ß


#4B6 ß (TYP)

#4B1

#6B2

#6B5

#6B4

(TYP)‚

2" x ‚" PLATE

(TYP)‚

2" x ‚" PLATE

(TYP)‚

(TYP)‚

2" x ‚" PLATE

2" x ‚" PLATE

(TYP)‚

JOINT CONNECTION DETAILS

(LOWER CONNECTIONS - ALTERNATE)

SECTION B-B

(UPPER CONNECTION)

SECTION A-A

(LOWER CONNECTION)

SECTION B-B

(UPPER CONNECTION)

ELEVATION

(UPPER CONNECTION - ALTERNATE)

ELEVATION

SCALE: 1•" = 1'-0" (EXCEPT AS NOTED)

NOT TO SCALE

STEEL TUBE (TYP)

4" x 4" x •"KEY

CONNECTION

CONNECTION JOINT DETAIL

SCALE: 1•" = 1'-0"

JOINT ASSEMBLY

(TYP)‚

UPPER JOINT CONNECTION

STEEL TUBE

4" x 4" x •"

CONNECTIONS

LOWER JOINT

(TYP)‚

BB

AA

END VIEW

(TYP)Š

(TYP)Š 1"

R = ƒ" (TYP)

2

19

DD

C

C

Š

(TYP)

1•" x 1" STIFFENER

•" COVER PLATE

SECTION C-C

CONNECTION KEY ASSEMBLY DETAILS

SCALE: 1•" = 1'-0"

STIFFENER

1•" x 1"

TOP OF BARRIER)

(INSTALL FLUSH WITH

•" COVER PLATE


MEDIAN BARRIER DELINEATOR

RETROREFLECTIVE CONCRETE

(SEE TYPICAL SECTION)

CONNECTION KEY

Š

(TYP)

3 - •" PLATES

SCALE: 3" = 1'-0"

(CONNECTION KEY)

SECTION D-D

6'-0"6'-0"

6"4'-3"1'-3"1'-3"4'-3"6"

12'-0" LONG STRUCTURAL TUBE (SPLICES NOT PERMITTED)

2'-8"

9…

"

‚ "

MINIMUM

‚ "‚ "

MINIMUM

‚ "

9…

"

10"

10"

2"

1‚"

6"

4"

1'-

2"

5„

"4"

1'-

2"

3„

"

2‚

"

(T

YP)

2'-

2‚

"

(TYP)

4†"

8"

1'-

2"

4"

7„

"1'-

2"

4„

"

‚"

1"


BRIDGE NO.TOWN

LOCATION

STATE PROJECT

BRIDGE SHEET

OF

FILE NUMBER


DESIGNED

DRAWN

QUANTITIES CHECKED

CHECKED

CHECKED


REV. DATE


AS NOTED

SUBDIRECTORY


.DGN LOCATOR


ABH

ABH

------------

PJP

NHDOT 7/12

8/12 8/12

8/12

8/15/12

THIS SHEET

SHALL BE MADE TO

NO MODIFICATIONS

6/1/20

SCALE: 2" = 1'-0"

PCB STANDARD PLAN GR-23 (NCHRP 350))

(ONLY REQUIRED FOR CONNECTION TO HIGHWAY

NOT TO SCALE


BRIDGE WORK AREA

FOR ROAD CONSTRUCTION)

(REFER TO NHDOT STANDARD PLANS

SHALL BE EXTENDED AS REQUIRED

PORTABLE CONCRETE BARRIER

(TYP)

STRUCTURAL TUBE & CONNECTIONS

SPEEDS GREATER THAN 45 MPH (TYP)


MINIMUM 2 BRACED CONCRETE BARRIER UNITS

SPEEDS \ 45 MPH (TYP)


MINIMUM 1 BRACED CONCRETE BARRIER UNIT(SEE ANCHORAGE DETAIL)

BRACED SYSTEM SHALL BE ANCHORED (TYP)

BARRIER UNIT AT END OFREQUIRED WITHIN BRACED BARRIER LAYOUT)

PORTABLE CONCRETE BARRIER (20' LONG UNITS

JOINTS OF BRACED BARRIER LAYOUT)

CONNECTION JOINT (TYPICAL @ INTERIOR

TRANSITION SECTION

TRANSITION SECTION

SCALE: ƒ" = 1'-0"

STRUCTURAL TUBING DETAILS

(TYP)

8" x 8" x •" PLATE

(TYP)

OUTSIDE CONNECTION

(TYP)

INSIDE CONNECTION

(TYP)

1•" Â HOLE(TYP)

3" Â HOLE

SCALE: ƒ" = 1'-0"

ANCHORAGE DETAIL

ROADWAY SURFACE

(SEE GENERAL NOTES #4)

MINIMUM 2'-4" LONG (TYP)

1" Â ANCHOR ROD

(TYP)

18" MINIMUM

STRUCTURAL TUBE

6" x 6" x ‰"

SCALE: 2" = 1'-0"

BARRIER & STRUCTURAL TUBING SECTIONS

SECTION WITHOUT SHIMS SECTION WITH SHIMS

(TYP)

3" NUT


WITH ‡" Â HOLE

8" x 8" x •" PLATE

90°


90°

WITH ‡" Â HOLE

8" x 8" x •" PLATES

FENDER WASHERS

‡" I.D. PVC SLEEVE(SEE NOTES ABOVE)


AFFECT THE REUSE OF CONCRETE BARRIER UNITS

THE PRESENCE OF NORMAL HOLES WHICH HAVE BEEN MODIFIED/DRILLED WILL NOT

ALIGN STRUCTURAL TUBE BRACING UNITS FOR CURVED ALIGNMENTS

PVC SLEEVE OPENINGS SHALL BE MODIFIED/DRILLED AS REQUIRED TO PROPERLY

(GRADE 5)

ƒ" Â THREADED ROD

(3" NOMINAL O.D.)

FENDER WASHER

(TYP)

3" NUT

(GRADE 5)

ƒ" Â THREADED ROD

(3" NOMINAL O.D.)

FENDER WASHER

STRUCTURAL TUBE

6" x 6" x ‰"

STRUCTURAL TUBE

6" x 6" x ‰"

SCALE: ƒ" = 1'-0"

TRAFFIC SIDEWITH WASHERS (TYP)

SHIM OUTSIDE CONNECTION

TRAFFIC SIDE WITH WASHERS (TYP)

SHIM INSIDE CONNECTION

TUBE CONNECTIONS (CURVED ALIGNMENT)

WORK AREA OUTSIDE CURVE

WORK AREA INSIDE CURVE

CONNECTION JOINT

CONNECTION JOINT

Š

(TYP)

•" PLATES

TYPICAL SECTION

(TRANSITION KEY)

(2.875" O.D., 1.771" I.D.)

DOUBLE - EXTRA STRONG PIPE

TRANSITION KEY ELEVATIONS

CONCRETE BARRIER (TYP)

#6 CONNECTION BARS FOR PORTABLE

À APPROXIMATE LOCATION

(TYP)

FOR CONCRETE BARRIER CONNECTION BARS

1ƒ" OPENING BETWEEN PIPE SECTIONS

(TYP)

•" PLATES

(TYP)

SECTIONS

PIPE

SCALE: 2" = 1'-0"

PCB STANDARD PLAN GR-23 (NCHRP 350))

(ONLY REQUIRED FOR CONNECTION TO HIGHWAY

(TYP)

2'-0"

(TYP)

2'-0"

(TYP)

2'-0"

(T

YP)

7"

(T

YP)

2"

(T

YP)

6"

(TYP)

#4T1

(TYP)

4'-2"

(TYP)

1'-3"

(TYP)

4'-3"

CL

EA

R

6"

(TYP)

7"

(TYP)

2"

CL

EA

R

3"

CL

EA

R

6"

(TYP)

3 #4T1 (SP @ 5ƒ")

(T

YP)

2"

(TYP)

1'-0"

(TYP)

2'-9"

20'-0"

2'-

8"

6"

9"6"9"

2'-0"

6"

1'-

1"

1'-

0"

7"

1'-

7"

10"

3"

1'-

1•

"

2'-

8"

2'-

0"

CL

EA

R

3"

1'-

10"

7"

3"

9"6"9"

2'-0"

2'-

8"

6"

4"

1'-

2"

8"

9•"

2"

1‚" Â

2•" Â

(TYP)

2…"

(TYP)

4‡"

3ƒ

"

9"

5…

"

2"

(T

YP)

1•

"

MI

N

2"

5"

2"

7"2"

2"

1'-

0"

(TYP)

…"

(TYP)

1†"

2'-

8"

2"

1‚"

†"

(TYP)

1•" CLEAR

(TYP)

1†"

(TYP)

2"

10"

1'-0"

=

6"

3

SP

@

2"

2 PAIRS ( )

4 #4T7 @ 18"

#4T7 IN PAIRS ( )

3

T1

0

8•

"6•

"6•

"4‚

"

2•

"

AS

SH

OW

N

#5

T9

5

NS

&

5

FS

5"

= 2'-0"

6 #4T7 @ 12"

1'-6"3'-7"2 #4T1 @ 5'-0"5'-0"

F-SHAPE SECTION

6'-6"

TAPERED SECTION

6'-0"

JERSEY SHAPE SECTION

7'-6"

2'-

3"

1'-8†

"6

…"

8•"

3'-3‚"

4•"

2"

± „

"

2'-11"

6"

1'-10•

"

8"

3•

"

10"

2'-4"

1'-

3"

5"

2'-

6"

1ƒ

"


BRIDGE NO.TOWN

LOCATION

STATE PROJECT

BRIDGE SHEET

OF

FILE NUMBER


DESIGNED

DRAWN

QUANTITIES CHECKED

CHECKED

CHECKED


REV. DATE



ABH

------------

SMG

NHDOT 4/20

4/20 5/20

4/20

THIS SHEET

SHALL BE MADE TO

NO MODIFICATIONS

AS NOTED

SUBDIRECTORY


.DGN LOCATOR

NHDOT

#4

#6

#6

#6

9

2

2

2

4'-10"

19'-1"

1'-2"

19'-9"

MK QTY LENGTH

B1

B2

B3

B4

B5 #6 2

MK QTY LENGTH

T1

T2

T3

T4

T5

T6

#4 12T7 3'-4"

(20' BARRIER)

TRANSITION

REBAR SCHEDULE

(20' BARRIER)

BRACED BARRIER

REBAR SCHEDULE

B6 #6 9 2'-11"

6"

#4 3T8

#5 10T9

4'-5"

6'-3"

#4

#6

#6

#6

5

2

2

2

4'-10"

19'-3"

1'-2"

#6 2

#4 6 2'-11"

6"

16'-0"


6/1/20

NO. GR-24 & 25 (MASH 16)

WITH HIGHWAY PCB STANDARD PLAN

NOTE: TRANSITION PIECE FOR USE

SCALE: 1" = 1'-0"

SCALE: 1" = 1'-0"

(TYP)


SCALE: 1" = 1'-0"

#4T1

2 #6T2

2 #6T3#6T3

#6T2

#6T4

#6T5

#6T2 #6T3











#4T1#4T1

ANCHOR RODS)


5ƒ" (TYP)

SCALE: 1" = 1'-0"

(TYP)

R = 10"

LIFTING DEVICE)



LIFTING DEVICE)



TUBING SECTIONS)



(TYP)

6"

VIEW B-B

VIEW B-B

(TYP)

R = 10"

(TYP)

R = 1"

SLOT (TYP)

1‡"x 4" PIN

(TYP)

40°-00'-00"

(TYP)

3"

ELEVATION

PLAN

(TYP)

DRAINAGE SLOT

#6T5

#6T4

SCALE: 1" = 1'-0"

SCALE: 1" = 1'-0"

R = †"

(TYP)

#4T8 â

SLOT

2"x 12" DRAIN

PIN SLOT (TYP)

À 1‡"x 4" ANCHORING

A

A

B

B

3 PAIRS ( )

(TYP)

#4T8 â

(TYP)

#4T8 â

IN PAIRS

#4T7(TYP)

T10

(TYP)

#5T9

(TYP)

T10

(TYP)

T10

(TYP)

#5T9

T10

(TYP)

R = 1"


À ‡ I.D. PVC SLEEVE

1 PAIR ( )

2 #4T7

PAIRS

TIE TO #4T7

JUST #6T2 TOAD

INSIDE #4T7 PAIRS

BEND #6T3 TO FIT

#6T5 (TRANSVERSE TOP)

#6T4 (TRANSVERSE BOTTOM)


#4T6 ß (TYP)


#4T6 ß


#4T6 ß (ALTERNATE

SECTION A-A

SECTION A-A

#6T2

4"

(TYP)


SCALE: 1•" = 1'-0"

BENDING SCHEDULE

#4T7


R = 1"

PLAN

ELEVATION

R = 1"45°-00'-00"

R = 1•"

R = 1•"

R = 1•"

#4T9

PER ASTM A123 OR AASHTO M11)

(HOT DIP GALVANIZED AFTER FABRICATION

(3 BARS, 7'-2" LENGTH/BAR)

ƒ" DIA. LOOP BARS (ASTM A36)

T8 LOOP BAR

R = 1"

R = 1•"

#4B1 & #4T1 #4B6 & #4T6

SCALE: 1" = 1'-0"

„

LINKING PIN ASSEMBLY

‚" BEVEL

A572 GRADE 50

(‚" MIN THICKNESS)

CIRCULAR WASHER

2" OUTSIDE DIA

OR AASHTO M 111

PER ASTM A123

AFTER FABRICATION

HOT DIP GALVANIZE

1" Â A449 STEEL ROD

2…"3†"1'-1"5"

10'-0"

5"1'-1"3†"2…"

2‚

"

9•

"

8†

"

3•

"

4•

"

3†

"

2'-0"

2'-0"

2'-0"

2'-0"

2'-0"

2"

2"

19 #5T3 (BOT) SPL W/#5T1 & #5T2

#5

T4

NS

&

FS

AS

SH

OW

N

13 #5T1 , 12 SP @ 6" = 6'-0"9•"

2'-

8"

1'-

10"

7"

3"

11"

6"

1'-3"

2"

(TYP)

2•"

(TYP)

4ƒ"

2'-0"

9"6"9"

1…"

11„"

10•"

3ƒ

"

9…"

9…"

11„"

6‹

"5

Ž"

5Ž

"6‹

"

SUBDIRECTORY

X-Bolt Barrier _Revised Transition

.DGN LOCATOR

XX

XX XXX\XXX XX

XX XX

XX/XXXXXXX-X-X

------------

XX/XXXXX

AS NOTED

GENERAL NOTES:


GMC 1/18

MATERIAL NOTES:

CHAMFERED ƒ", UNLESS OTHERWISE NOTED.

CASTING DATE SHALL BE SHOWN ON BARRIER. ALL EXPOSED EDGES OF CONCRETE SHALL BE

4000 psi, AND SHALL HAVE A SMOOTH UNIFORM SURFACE FREE OF DEFECTS AND IRREGULARITIES.

1. BARRIERS SHALL BE LIGHT COLORED CLASS AA CONCRETE, WITH COMPRESSIVE STRENGTH OF

4. ALL STEEL FOR CONNECTIONS SHALL BE GALVANIZED IN ACCORDANCE WITH SECTION 550.

FHWA/TX-05/0-4692-1.

CRASH TESTED BY TEXAS A&M UNIVERSITY SYSTEM, MAY 2005, AND ACCEPTED PER REPORT

REQUIREMENTS PER UPDATED NCHRP REPORT 350 FOR TEST NO 3-11 (MASH TEST LEVEL 3),

2. PORTABLE CONCRETE BARRIER DETAILS, AS SHOWN ON THESE PLANS, ARE IN COMPLIANCE WITH

BARRIER TO BE PLACED A MINIMUM 12" FROM THE EDGE OF THE DECK.

3. THE BARRIER HAS BEEN CRASH TESTED WITH A 27" DYNAMIC DEFLECTION WHICH WILL ALLOW THE

SHOWN ON SHEET 2 OF 3.

THE TRANSITION UNIT AND THEN TO NHDOT PCB FLARED OUT THE REQUIRED CLEAR ZONE AS

END, PARALLEL TO THE ROADWAY CENTERLINE. THE ENDS OF THE BARRIER SHALL CONNECT TO

UNITS). THE X-BOLT BARRIER SHALL EXTEND A MINIMUM OF 50' BEYOND THE BRIDGE AT EACH

4. USAGE OF THE TEXAS X-BOLT BARRIER REQUIRES A MINIMUM OF 100 LINEAR FEET (10 - 10'

CONFIRMING THEY MEET THE TIGHTENED REQUIREMENT.

AFTER INSTALLATION, ALL X-BOLT JOINTS SHALL BE CHECKED BY THE CONTRACT ADMINISTRATOR

NUT" METHOD IN ACCORDANCE WITH SECTION 550.3.11.6.4 OF NHDOT STANDARD SPECIFICATIONS.

5. THE CONNECTION BOLTS AT THE BARRIER JOINTS SHALL BE TIGHTENED TO THE "TURN OF THE

AND A RELATIVE ANGLE OF 4 DEGREES BETWEEN THE 10' UNITS.

6. THE TEXAS X-BOLT BARRIER MAY BE INSTALLED WITH A 125' MINIMUM RADIUS OF CURVATURE

REPLACE, THE NEED FOR RETROREFLECTIVE SOLID EDGE LINE MARKINGS.

CONFORM TO THE COLOR OF THE EDGE LINE MARKINGS. DELINEATOR SUPPLEMENT, BUT DO NOT

PLANS FOR ROAD CONSTRUCTION). THE COLOR OF THE DELINEATORS SHALL, IN ALL INSTANCES,

BARRIER, SUBSIDIARY TO ITEM 606.41741 (SEE STANDARD NO. DL-1 OF NHDOT STANDARD

25-FOOT INTERVALS ALONG TOP AND/OR ONE FOOT DOWN THE SIDE OF PORTABLE CONCRETE

7. THE CONTRACTOR SHALL FURNISH AND INSTALL APPROVED RETROREFLECTIVE DELINEATORS AT




LOCATION


SHEET SCALE

DESIGNED

DRAWN

QUANTITIES

REV. DATE


FILE NUMBER

OF

BRIDGE SHEET

DATEBY

CHECKED

CHECKED

CHECKED

DATEBY

SHALL HAVE 1ƒ" MINIMUM CLEAR COVER, UNLESS OTHERWISE NOTED.

2. ALL REINFORCING STEEL SHALL BE AASHTO M31 (ASTM A615) GRADE 60. ALL REINFORCEMENT

ALL BARRIER UNITS SHALL BE 10' LONG.

BARRIER AND ALL ATTACHMENTS SHALL BE FABRICATED IN ACCORDANCE WITH SPECIAL PROVISIONS.

ITEM 606.41741, PORTABLE CONCRETE BARRIER FOR TRAFFIC CONTROL (BRIDGE). CONCRETE

1. PORTABLE CONCRETE BARRIER SHALL BE FURNISHED BY THE CONTRACTOR AND PAID FOR AS

ASTM A36 STEEL.

TO ASTM A325. STEEL PIPES, PLATE WASHERS, AND CONNECTION PLATES SHALL BE GALVANIZED

3. CONNECTION BOLTS SHALL BE ‡" Â GALVANIZED HIGH STRENGTH THREADED RODS CONFORMING

TXDOT NHDOT 4/18

4/18

THIS SHEET

SHOULD BE MADE TO

NO MODIFICATIONS


ABH

5/15/18

6/1/20

12/10

SCALE: 1•" = 1'-0" SCALE: 1•" = 1'-0"

ELEVATION SCALE: 1•" = 1'-0"

END VIEW

AT ENDS

ƒ" CHAMFER

SECTION A-A

PIPE ASSEMBLY

UPPER CONNECTION

PIPE ASSEMBLY

LOWER CONNECTION

2/CONNECTION

8 #6T5 Ú

#5T1

#5T2

#5T3

2 #5T1

1 #5T2

2 #5T1

1 #5T2 SP AS SHOWN IN SECT A-A

8 #5T4, 4 NS, 4 FSA

A

(TYP)

R = 10"

(TYP)

R = 1"

SLOT (TYP)

2"x 24" DRAIN

& BARRIER


SCALE: 1•" = 1'-0" SCALE: 1•" = 1'-0"

TOP VIEW CONNECTION POCKETS

LOWER CONNECTION PIPE

CONNECTION PLATE (TYP)

UPPER ASSEMBLY (TYP)

LOWER ASSEMBLY (TYP)

ADJACENT BARRIER SEGMENTS

UPPER CONNECTION PIPE

(SEE DETAILS)

OR THREADED ROD

CONNECTION BOLT

TYPE X JOINT CONNECTION DETAILS

UPPER POCKETLOWER POCKET

UPPER POCKET LOWER POCKET

(TYP)

90°-00'-00"

PRECAST BARRIER LENGTH (10'-0")

BEYOND THE CONCRETE FACE OF BARRIER

NOTE: CONNECTION HARDWARE SHALL NOT EXTEND

(TYP)

2/CONNECTION

#6T5 Ú

1'-0•"

2„"

6Œ

"

2'-

3"

1'-7"

4‚"5‚"

1'-9"

10†"

1'-

9‚

"5ƒ

"

1'-

4"

5"

1ƒ"

2„"

5Ž

"

3'-3"

6‚

"

3"

3"

2'-3"

1'-

8†

"6

…"

8•"

3'-3‚"

9'-8"

4•"

2"

± „

"

2'-11"

6"

1'-10•

"

8"

3•

"

10•"

1'-0•"

•"

•"

4"

4"

3‚

"

4•

"

2‚

"

4"

2"

4•

"

1" MIN

1•"

1•

"

2'-5"

#5

#5

#5

#5

17

2

8

19

5'-2"

4'-0"

9'-8"

2'-1"

MK QTY LENGTH

XX

XX XXX\XXX XX

XX XX

XX/XXXXXXX-X-X

------------

XX/XXXXX

SUBDIRECTORY


.DGN LOCATOR

AS NOTED


TRAFFIC

TRAFFIC

OR

WORK AREA

TRAFFIC

TRAFFIC

BARRIER (X-BOLT)

TEXAS RESTRAINED

ROADWAY CENTERLINE


(SEE NOTE 5)

10:1

EDGE OF T.W.

15°

(NTS)

ROADWAY CENTERLINE


(SEE NOTE ABOVE)

ROADWAY CENTERLINE

END AS ORDERED. SEE MUTCD.

TRAFFIC OR ADEQUATELY PROTECT

THE CLEAR ZONE OF APPROACHING

TRAFFIC, FLARE PCB BEYOND

TRAFFIC ONLY. FOR TWO-WAY

DEPARTURE END FOR ONE-WAY

BLUNT END ACCEPTABLE ON

(SEE SHT 3 OF 3)

(10' TRANSITION UNIT)

TEXAS RESTRAINED BARRIER


STANDARD SHEET)

END AS ORDERED (SEE PCB

ZONE OR ADEQUATELY PROTECT

FLARE PCB BEYOND CLEAR

(SEE NHDOT PCB STANDARD SHEET)

BEGIN FLARE

CONCRETE BARRIER

NHDOT PORTABLE



LOCATION


SHEET SCALE

DESIGNED

DRAWN

QUANTITIES

REV. DATE


FILE NUMBER

OF

BRIDGE SHEET

DATEBY

CHECKED

CHECKED

CHECKED

DATEBY

T1

T2

T3

T4

T5 #6 8 3'-9"

#5

#5

#5

#5

11

1

8

12

5'-2"

4'-0"

9'-7"

2'-1"

MK QTY LENGTH

T1

T2

T3

T4

T5

#4 10T6

#6 4 3'-9"

#5 2T8

3'-4"

4'-5"

THIS SHEET

SHOULD BE MADE TO

NO MODIFICATIONS

(10' BARRIER)

TEXAS X-BOLT

REBAR SCHEDULE

(10' BARRIER)

TRANSITION

REBAR SCHEDULE


GMC 1/18

TXDOT NHDOT 4/18

4/18ABH

12/10

5/15/18

6/1/20

SCALE: 1•" = 1'-0"

BENDING SCHEDULE

R = 2"

70°-00'-00"

GRADE 60 (3'-6")

#6 REINFORCING BARR = 2‚"

#5T3#5T2#5T1

R = 2"

R = 2"

R = 2"

R = 2"

#4T6#6T5 Ú

#5T4


R = 1"

PLAN

ELEVATION

R = 1"45°-00'-00"

R = 1•"

R = 1•"

R = 1•"

#4T8

PER ASTM A123 OR AASHTO M11)

(HOT DIP GALVANIZED AFTER FABRICATION

(3 BARS, 7'-2" LENGTH/BAR)

ƒ" DIA. LOOP BARS (ASTM A36)

T7 LOOP BAR

70°-00'-00"

SCALE: 1•" = 1'-0"

SCALE: 1•" = 1'-0"

PIPE DETAIL

LOWER CONNECTION

70°-00'-00"

STEEL PIPE

1•" Â SCH 40

STEEL PIPE

1•" Â SCH 40

PLATE DEAILS)

(SEE CONNECTION

Á 4" X 4•" x …"

PLATE DEAILS)

(SEE CONNECTION

Á 4" X 4•" x …"

PIPE DETAIL

UPPER CONNECTION

Á …" 1†" Â HOLE

STEEL PIPE

1•" Â SCH 40

WELDING DETAILS PLATE DIMENSIONS

SCALE: 2" = 1'-0"

#6T5 Ú (TYP)

CONNECTION PLATE DETAILS

‚

‚(TYP)

‚ ‚

1‚ - 1ƒ

THREADED ROD)

(OR EQUIVALENT

‡" Â A325

PLATE WASHER (TYP)

Á 3" X 3" x …"NUT (TYP)

STD ‡" HEXPLATE WASHER

Á 3" X 3" x …"

•" Â HOLE

SCALE: 1•" = 1'-0"

THREADED ROD DETAILS

CONNECTION BOLT OR

STEEL CONNECTION PLATE

TYPICAL WELD ASSEMBLY

ISOMETRIC VIEW OF

SCALE: N.T.S.

DETAILS" FOR WELDING DETAILS

NOTE: SEE "CONNECTION PLATE

CONNECTION PIPE

1•" Â SCH 40 STEEL

BAR ANCHORS

#6T5 Ú DEFORMED

9•

"

8†

"

3•

"

4•

"

3†

"

#5

T4

NS

&

FS

AS

SH

OW

N

2‚

"

2'-

8"

5"1'-1"3†"2…"

12'-6"

2'-7•"

1'-0"

4'-10•"

2'-0"

2'-0"

3"

2"

9 #5T1 , 8 SP @ 6" = 4'-0"

2"

2'-8"

#5

T4

#5T1 & #5T3

9•"

2'-

8"

1'-1

0"

7"

3"

11"

6"

1'-

3"

2"

(TYP)

2…"

(TYP)

4‡"

9•"

2'-0"

6"

4"

1'-

2"

8"

2'-0"

12 #5T3 (BOT) SPL W/#5T1 & #5T2

1'-1

0"

7"

3"

(TYP)

4‡"

(TYP)

2…"

9"6"9"9"6"9"

7"

2"

1'-0"

2"

2"

2"

5"

9"

3ƒ

"

(T

YP)

1•

"

MI

N

2"5

…"

8†

"3•

"4•

"3†

"9•

"

2‚

"

#5

T4

NS

&

FS

AS

SH

OW

N

2"

(T

YP)

2"

2"

(TYP)

1†"

(TYP)

2"

(TYP)

1•" CLEAR

10"

(TYP)

1†"

(TYP)

…"

†"

1‚"

2•" Â

1‚" Â

2"

#4T6 IN PAIRS ( )

3

T7

2'-

6"

1ƒ

"

------------

XX

XX XXX\XXX XX

XX XX

XX/XXXXXXX-X-X

XX/XXXXX

SMG 4/20

AS NOTED

SUBDIRECTORY


.DGN LOCATOR





LOCATION


SHEET SCALE

DESIGNED

DRAWN

QUANTITIES

REV. DATE


FILE NUMBER

OF

BRIDGE SHEET

DATEBY

CHECKED

CHECKED

CHECKED

DATEBY

NOTES

PORTABLE CONCRETE BARRIER FOR TRAFFIC CONTROL (BRIDGE).

1. TEXAS RESTRAINED BARRIER (TRANSISTION UNIT) SHALL BE PAID FOR UNDER ITEM 606.41741,

2. SEE SHEET 1 OF 3 FOR NOTES AND SHEET 2 0F 3 FOR REBAR SCHEDULE.

NHDOT NHDOT 4/20

4/20


6/1/20

ABH

4/20

THIS SHEET

SHOULD BE MADE TO

NO MODIFICATIONS

NO. GR-24 & 25 (MASH 16)

WITH HIGHWAY PCB STANDARD PLAN

NOTE: TRANSITION PIECE FOR USE

SCALE: 1•" = 1'-0"

ELEVATION

SCALE: 1•" = 1'-0" SCALE: 1•" = 1'-0"

SCALE: 1•" = 1'-0"

PLAN

#5T3

#5T1

#5T2

SECTION A-A

TRANSITION BARRIER

TRANSITION BARRIER

R = 1" (TYP)

#5T2 & #5T3

A

A

B

B

2/CONNECTION

4 #6T5 Ú

SP AS SHOWN IN SECT A-A

8 #5T4, 4 NS, 4 FS

AT ENDS

ƒ" CHAMFER

2 #5T1

1 #5T2

SCALE: 1•" = 1'-0"

(TYP)

R = 10"

(TYP)

R = 1"

SCALE: 1•" = 1'-0"

(TYP)

R = 10"

(TYP)

R = 1"

(TYP)

#6T9

SEE SHEETS 1 & 2

LOWER ASSEMBLY

SEE SHEETS 1 & 2

UPPER ASSEMBLY

(TYP)

40°-00'-00"

SLOT (TYP)

1‡"x 4" PIN

PIN SLOT (TYP)

À 1‡"x 4" ANCHORING

R = †"

SLOT

3"x 12" DRAIN

IN PAIRS ( )

#4T6

(TYP)

#4T8 â

(TYP)

#4T8 â

#6T7

(TYP)

#4T8 â

(TYP)

T7

(TYP)

T7

1'-1"

4 #4T6 @ 12"

2 PAIRS ( )

1'-6"

6 #4T6 @ 12" = 2'-0"

3 PAIRS ( )

5"

#5T3

#5T1 &

DRAIN SLOT

2"x 24"

À (2) 1•" Â SCH 40 STEEL PIPES & BARRIER

SECTION B-B

VIEW A-AVIEW B-B

B

B

A

A

SCALE: 1" = 1'-0"

„

LINKING PIN ASSEMBLY

‚" BEVEL

A572 GRADE 50

(‚" MIN THICKNESS)

CIRCULAR WASHER

2" OUTSIDE DIA

OR AASHTO M 111

PER ASTM A123

AFTER FABRICATION

HOT DIP GALVANIZE

1" Â A449 STEEL ROD


design memorandum 2020-01 - nh

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