jmt.com...nad 83 / 91 navd 88 n u .s 30 1 u .s. 3 0 1 p o t o m a c r i v e r va md dahlgren nsf...

NAVIGATIONAL CHANNEL

APPROXIMATE POSSIBLE

CLEARANCE

106.5' VERT.

5.3

2.9

2.9

1.4

2.5

15:1 Taper

SHEET OF 4

APPROX. MILE MARKER 50.0

POTOMAC RIVER

CONCEPTUAL PLANS UTILIZED FOR COAST GUARD BRIDGE PERMIT

07/12/2019

CONSULTATION BY JMT/PB JOINT VENTURE

APPLICATION BY MDTA

BETWEEN CHARLES COUNTY, MD AND KING GEORGE COUNTY, VA

BRIDGE REPLACEMENT OVER POTOMAC RIVER

HARRY W. NICE/THOMAS "MAC" MIDDLETON

PC STA. 10+17.77

PT STA. 11+65.91

PC STA. 12+60.59

STA. 197+90.09US 301 SB POT STA. 10+00.00=

Cable TerminalAlternate Breakaway

Cable TerminalAlternate Breakaway

PT STA. 13+82.59

POT STA. 13+97.07

HORIZONTAL DATUM

VERTICAL DATUM

NAD 83 / 91

NAVD 88

N

U.S. 301

U.S. 30

1

POT

OM

AC

RI

VE

R

VA

MD

DAHLGREN

NSF

LOCATION MAP

PARK

BARNESFIELD

PARK

DAHLGREN WAYSIDE

PLANT

MORGANTOWN GENERATION

AQUALAND MARINA

HISTORICAL/ARCHEOLOGICAL SITE

APPROX. LOCATION OF BARNESFIELD

SITE LOCATION

2000.0' 2000.0'0.0' 4000.0'

"MAC" MIDDLETON BRIDGE

PROPOSED NEW HARRY W. NICE/THOMAS

"MAC" MIDDLETON BRIDGE

EXISTING HARRY W. NICE/THOMAS

ELEVATION

PLAN

1

NAVIGATIONAL CHANNEL

PROPOSED 250.00' (76.2m)

N

ABUT. B

PROPOSED BRIDGE

(TO REMAIN)

EXISTING PIER 13

(TO REMAIN)

EXISTING PIER 14

RI

VE

R

POT

OM

AC

(TO BE REMOVED)

EXISTING BRIDGE

PROPOSED BRIDGE

ABUT. A ABUT. B(TO BE REMOVED)

EXISTING BRIDGE

PARK

DAHLGREN WAYSIDE

NSF DAHLGREN

AQUALAND MARINA

PLANT

MORGANTOWN GENERATION

SHIFT

585.00' (178.3m)

HORIZONTAL CLEARANCE

PRPOPOSED 250.00' (76.2m)

EXISTING HORIZONTAL CLEARANCE

480.00' (146.3m)

CHANNEL

Ñ PROPOSED NAVIGATION

CHANNEL

Ñ EXISTING NAVIGATION

CHANNEL


CHANNEL


OR TEMPORARY CAUSEWAY FILL

APPROX. LOCATION OF DREDGING

OR TEMPORARY CAUSEWAY FILL

APPROX. LOCATION OF DREDGING

SHORELINE

APPROX. EXISTING500.0' 500.0'0.0' 1000.0'

500.0' 500.0'0.0' 1000.0'

44 PIERS.

WATER TO THE RIVER BED IS 44,940 CUBIC YARDS INCLUDING

6. THE ESTIMATED FILL MATERIAL (CONCRETE) BELOW MEAN HIGH

THE US ARMY CORPS OF ENGINEERS.

5. RIVER MILE MARKER BASED ON GEOGRAPHIC DATA PROVIDED BY

MAINTAINED BETWEEN THE FENDERS.

4. THE MINIMUM NAVIGABLE CHANNEL WIDTH OF 250' WILL BE

TOWARD THE CHANNEL FOR THE PROPOSED NEW NICE BRIDGE.

3. NEW FENDERING SYSTEM WILL BE INSTALLED ON MAIN SPAN PIERS

DOLPHINS.

CONSIST OF SUITABLE MATERIAL FOR PILESUPPORTED CONCRETE

THE PROPOSED NEW NICE BRIDGE. EXISTING PIERS 13 AND 14

BE USED AS PIER PROTECTION FOR MAIN SPAN PIERS OF

2. EXISTING PIERS 13 AND 14 FOR THE EXISTING BRIDGE TO

WATER LINE.

PLACE AND EXTEND APPROXIMATELY 10' ABOVE THE MEAN LOW

NOS. 10 AND 13 THROUGH 20, WHICH WILL BE LEFT IN

MUDLINE OF THE RIVER, EXEPT FOR EXISTING BRIDGE PIER

1. EXISTING PIERS WILL BE REMOVED DOWN TO 2' BELOW THE

NOTES:

DPTH=10'DPTH=4'

DPTH=6' DPTH=6'DPTH=8'

DPTH=6' DPTH=6'DPTH=4' DPTH=8'

DPTH=10' DPTH=20' DPTH=36' DPTH=64' DPTH=75'DPTH=18' DPTH=48'

DPTH=64'DPTH=13' DPTH=50' DPTH=10'DPTH=36' DPTH=36'DPTH=18' DPTH=71'

(2990.7m)

9812.00'

ABUT. A

SHORELINE

APPROX. EXISTING

(2990.7m)

9812.00'

SHEET OF 4


POTOMAC RIVER


07/12/2019


APPLICATION BY MDTA




365

PLAN

ELEVATION

N

Ñ PIER 28 Ñ PIER 29

Ñ PIER 30

Ñ PIER 31 Ñ PIER 32

Ñ PIER 28 Ñ PIER 29 Ñ PIER 30 Ñ PIER 31 Ñ PIER 32

2

Ñ PIER 33

Ñ PIER 33

DATUM EL. -150.00

(178.3m)

585.00'

A

A

FL

OW

RIVER BEDAPPROXIMATE

364 366 367 368 369 370 371 372 373 374 382381380379378377376375

SPANS

APPROACH SPANS

MID-LEVEL

(91.4m)

300.00'

(108.2m)

355.00'

(112.8m)

370.00'

(108.2m)

355.00'

(TO BE REMOVED)

EXISTING BRIDGE

(TO REMAIN)

EXISTING PIER 13

(TO REMAIN)

EXISTING PIER 14

(18.6

m)

61.13'

B B


PRPOPOSED 250.00' (76.2m)

SHIFT

585.00' (178.3m)

MUDLINE)

REMOVED 2' BELOW

EXISTING PIER (TO BE

MUDLINE)

REMOVED 2' BELOW

EXISTING PIER (TO BE

(2990.7m)

9812.00'

APPROACH

MID-LEVEL

EXISTING HORIZONTAL CLEARANCE

480.00' (146.3m)

13

5.0

0' (4

1.1

m)

PR

OP

OS

ED

VE

RT.

CL

EA

RA

NC

E


PROPOSED 250.00' (76.2m)

(TO BE REMOVED)

EXISTING BRIDGE

ELEVATION

100-YEAR FLOOD

NICE BRIDGE

Þ PROPOSED NEW

CHANNEL


CHANNEL


CHANNELÑ PROPOSED NAVIGATION

CHANNELÑ EXISTING NAVIGATION

FINAL DESIGNDETERMINED ATFOUNDATION TO BE

NAVIGATION ENVELOPE

MHW ELEVATION = 0.70

MLW ELEVATION = -0.87

100.0' 100.0'0.0' 200.0'

DPTH=30' DPTH=36' DPTH=40' DPTH=45' DPTH=47' DPTH=48' DPTH=51' DPTH=60' DPTH=64'

DPTH=31'

DPTH=36' DPTH=38'DPTH=43'

DPTH=50' DPTH=51' DPTH=50' DPTH=53' DPTH=67' DPTH=64'

REINFORCED PLASTIC COMPOSITE LUMBER.

5. LUMBER DOLPHINS SYSTEMS AND RUB RAILS ARE MARINE GRADE FIBERGLASS

PILE-SUPPORTED CONCRETE FENDERS.

BRIDGE. EXISTING PIERS 13 AND 14 ARE OF SUITABLE MATERIAL FOR

PIER PROTECTION FOR MAIN SPAN PIERS OF THE PROPOSED NEW NICE

4. EXISTING PIERS 13 AND 14 FOR THE EXISTING BRIDGE TO BE USED AS

3. ELEVATIONS BASED ON NAVD 1988 DATUM.

2. EXISTING RIVER BED ELEVATIONS BASED ON 2015 BATHYMETRIC SURVEY.

(REFERENCED TO THE NAVD 1988 DATUM).

FLOOD INSURANCE RATE MAP (FIRM) IS 9 FEET AT THE BRIDGE LOCATION

1. THE APPROXIMATE 100-YEAR FLOOD ELEVATION ACCORDING TO THE FEMA

NOTES:

STEEL MEMBER)

EL. 140.00 (LOW

SEE NOTE 5SEE NOTE 5

(TYP.)

FENDER SYSTEM

SECTION A-A

RIVER BED

APPROXIMATE

(0.5m)

1.52'

(0.5m)

1.52'

(SHLD.)2.00' (0.6m)

(SHLD.)2.00' (0.6m)

TRAVEL LANES

24.00' (7.3m)

(18.6m)

61.13'

3

2.08' (0.6m)

PIER (PIERS 29 AND 30)

FOR PROPOSED CHANNEL SPAN

PIER PROTECTION

TO BE USED AS

EXISTING PIER 14

TO

BE

DE

TE

RMI

NE

D

N

EW

SU

PE

RS

TR

UC

TU

RE

TO

BE

DE

TE

RMI

NE

D

NE

W

FO

OTI

NG/

FO

UN

DA

TI

ON

TO

BE

DE

TE

RMI

NE

D

NE

W

PI

ER

TY

PE

ST

EE

L

GI

RD

ER

S

SH

OW

N,

AT

FI

NA

L

DE

SI

GN

AT

FI

NA

L

DE

SI

GN

AT

FI

NA

L

DE

SI

GN

HA

MM

ER

HE

AD

PI

ER

SH

OW

N,

DRI

LL

ED

SH

AF

T

FO

UN

DA

TI

ON

SH

OW

N,



Ñ EXISTING BRIDGE

15.0' 15.0'0.0' 30.0'

SHEET OF 4


POTOMAC RIVER


07/12/2019


APPLICATION BY MDTA




TRAVEL LANES

24.00' (7.3m)

SHLD.

2.00' (0.6m)

SHLD.

2.00' (0.6m)

NICE BRIDGE

Þ PROPOSED NEW

SECTION B-B

DATUM EL. -100.00

Ñ EXISTING PIER 13 Ñ EXISTING PIER 14

APPROXIMATE RIVER BED

VE

RTI

CA

L

CL

EA

RA

NC

E

PR

OP

OS

ED 135.00' (41.1

m)

AS PIER PROTECTION

EXISTING PIER TO REMAIN

4

AS PIER PROTECTION

EXISTING PIER TO REMAIN

(12.7

m)

42.00'(

±)

(12.5

m)

41.00'(

±)

(13.9

m)

46.00'(

±)

EXISTING SPAN LENGTH

369.67' (112.7m)

Ñ PROPOSED NAVIGATION CHANNEL

HORIZONTAL CHANNEL & NAVIGATION ENVELOPE

PROPOSED 250.00' (76.2m)



(EXISTING HARRY W. NICE/THOMAS "MAC" MIDDLETON BRIDGE ONLY)

30.0' 30.0'0.0' 60.0'

SHEET OF 4


POTOMAC RIVER


07/12/2019


APPLICATION BY MDTA




jmt.com...nad 83 / 91 navd 88 n u .s 30 1 u .s. 3 0 1 p o t o m a c r i v e r va md dahlgren nsf...

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