John G. Lewis Memorial Bridge over Catoctin Creek · John G. Lewis Memorial Bridge over Catoctin...

John G. Lewis Memorial Bridge over Catoctin Creek

December 5, 2018

Project Location

Virginia Department

of Transportation


Two-Span Steel Beam Bridge with Glu-Lam Timber Deck and Existing Truss

December 5, 2018

Virginia Department

of Transportation


December 5, 2018

Project Overview

Proposed Public Hearing Plans

Virginia Department

of Transportation

Pier

along Rte. 673

Exist. profile

grade

Finishedgrade

Finished

members, typ.

Existing truss

To Lovettsville

ABUTMENT AABUTMENT B

PIER

Proposed plate girder

treatment (drystack typ.)

Faux-stone architectural chord eye-bar typ.

Exist. bottom

diaphragm typ.

exterior

15" proposed

LC

LC

of rail

Face

CR

EE

K

CA

TO

CTIN

LC

LC Slope: %1

Fix.Exp.

Exp. Fix.

To

p of deck to

20’-

9"

to

p chord

STA.104+03.29

Abutment B

backwall

Face of

STA.104+04.29

Abutment B

backwall

Back of

STA.102+44.29

Abutment A

backwall

Face of

STA.102+43.29

Abutment A

backwall

Back of

Elev. 289.71

Elev. 286.04

Elev. 291.50

Elev. 289.39

Elev. 291.25

(Featherbed Lane)

Rte. 673

communication line

Existing underground

hydraulic benchto provide a Excavation

STA.103+32.96

11’-

2"

5’-

7"

5’-

7"

10"

10"

to of truss pin

sLC

Measure

d bet

wee

n

22’-

0"

LC

Fill Fill

railing

Proposed

161’-0"

stream

Edge ofstream

Edge of

N66 -10’-12"Eo To Rte. 665

Elev. 303.89

Elev. 303.71

0.21%

typ.

portal

Truss

Span b

70’-4"

Span a

88’-8"

Elev. 304.04

deck panels

5�" glulam

Proposed

water elev. 286.10

Ordinary high


Faux-stone architectural

truss

existing

truss

existing

13’-10"

LC LC

of rail

Face

Rte. 673

plate girder

Proposed

diaphragm typ.

interior

15" proposed

diaphragm typ.

exterior

15" proposed

LC

Clear roadway

11’-2"



Measure

d bet

wee

n to of truss pin

s

22’-

0"

LCLC

LCTo

p of deck to to

p chord

20’-

9"

truss

Existing


Faux-stone architectural

40ft retaining wall with

December 5, 2018

" = 1’-0"81Scale:

PROPOSED PLAN

SECTION ALONG OF BRIDGECL

" = 1’-0"81Scale:

TYPICAL SECTION AT PIER

" = 1’-0"21Scale:

Proposed Public Hearing Plans

Virginia Department

of Transportation

floorbeam

15" existingstringer typ.

10" existing

truss

Exist.

truss

Exist.

12" exist. truss

12" exist. truss

Roadway

11’-2"

2’-

3"

5’-7"5’-7"

4�

"

12" 12"

5 eq. spaces @ 2’-0"1’-11" 1’-11"

to of existing truss

13’-10"

LCLC

LC LC

2’-

8�

"

�"

min.

gap

min.

5"

2’-

9"

truss

Exist.LC

truss

Exist.LC

2% slope2% slope

Legend:

LC

LC LC to of existing truss

13’-10"

Face of railing

2’-

9"deck panels

5�" glu-lam

(Exist. glu-lam deck out-to-out)

12’-3"

overlay

Exist. asphaltdeck panels

Exist. glu-lam

- Proposed structure

- Existing structure to be removed

- Existing structure

Glulam deck width measured out-to-out

11’-8"

Roadway width measured face-to-face of guardrail

11’-2"

10"

10"

5’-7"5’-7"

Rte. 673

6�"

typ.

diaphragm typ.

for exterior

Built-up section

3’-2" typ.

1’-3"1’-3"

girder

Plate deck typ.

Edge of

typ.

2’-1"3 spa. at 2’-6" = 7’-6"

diaphragm typ.

plate for interior

C-shape bent

0.0% slope



typ.

railing

Exist.

detail typ.

Deck fastener

12" exist. truss12" exist. truss

o/

before installing bolt.

approved preservative

tightening. Treat hole with

so bolt cannot turn while

Bore hole with bit sized

self-locking nut

with slotted head and

�" x 9" galv. bolt

practicalAs close as

angle detail below

flange thickness, see

cut short leg to match

L 4 x 3 x � x 0’-3"

Self-locking nutSteel girder

vertical members

clear of truss

Posts locations

Proposed railing

4" 6"

3’-

6"

1’-2"

5"

�"

�"

2"

5"

guardrail

Thrie-beam

deck panels

5" glu-lam

W6x12

A

A

2 - 1" x 4" eye bar

Exist. bottom chord

Bottom of exist. truss

exterior diaphragm

Top of proposed

details, see Detail C

For proposed connection

*

Exist. 2�" Pino/

threaded rods

Exist. 2 - �" o/

4 - �" x 4" eye bar

Exist. bottom chord

Proposed 1" elastomeric washer

diagonal eye bar

Exist. 2 - �" x 2"

Proposed 1" U bolt

members

between U bolt and exist.

Proposed neoprene washer

diaphragm, S15 x 42.9

Proposed exterior

LC

truss member

Existing vertical

BB

�"

min.

gap

existing truss is shown.

(L5) on south elevation of the

Bottom connection at midspan

washer

elastomeric

Proposed 1"

Exist. 2�" Pino/

and exist. members

washer between U-bolt

Proposed neoprene

�

8�"

4" W x 12" L

Proposed �" plateo/

with 2 washers

heavy hex nut

2 x 1" ASTM A325

LC

gap

1" min.

o/Proposed 1" U bolt

truss member

Existing vertical

exterior diaphragm

Built-up I-section at

**

**

4 - �" x 4" eye bar, typ.

Exist. bottom chord

LC

truss member

Existing verticalExist. 2�" Pino/

2 - 1" x 4" eye bar, typ.

Exist. bottom chord

diagonal eye bar, typ.

Exist. 2 - �" x 2"

o/

Exist. vertical member

washer

elastomeric

Proposed 1"

1" U bolt

Proposed o/

see notes

and exist. members, typ.

washer between U-bolt

Proposed neoprene

threaded rods typ.

Exist. 2 - �"

December 5, 2018Proposed Public Hearing Plans

" = 1’-0"43Scale:

EXISTING STRUCTURE

" = 1’-0"43Scale:

PROPOSED STRUCTURE

RAILING DETAIL

" = 1’-0"211Scale:

" = 1’-0"211Scale:

CONNECTION DETAIL

are not shown for clarity.

Existing truss members

" = 1’-0"211Scale:

SECTION B-B" = 1’-0"2

11Scale:

VIEW A-A*

FASTENER DETAIL

Scale: 3" = 1’-0"

Virginia Department

of Transportation

communication line

Existing underground

Pier

Proposed

Abutment A

Proposed

Abutment B

Proposed

stream

Edge of

roadway

approach

Reconstruct

roadway

approach

Reconstruct

to be removed

Temporary support

to be removed

Temporary support

Catoctin Creek

construction easement

Proposed temporary

maintenance easement

Proposed Permanent

easement line

15ft prescriptive

abutments

truss on proposed

Reinstall the steel


Legend:

Maintenance Access Rd.

Proposed potential VDOT


Proposed temporary

easement

maintenance

Permanent

in hydraulic bench

earth work to put

Limit of grading &

and earth work

Limit of grading

railing posts and beams

diaphragms, timber deck,

including girders,

Proposed superstucture

retaining wall

Proposed

12’-

0"

R/W line

Existing


Proposed temporary

Potential tree removal

Tree to remain

Existing structure to be removed

Temporary supports

Existing structure

Limit of grading / earthwork


Suggested Sequence of Construction

CONSTRUCTION STAGING

" = 20’-0"1Scale:

during constructionlocation of the truss Proposed temporary

access roadVDOT maintenance Proposed potential

minimize grading impactNew retaining wall to

and PierNew Abutments

Virginia Department

of Transportation



Proposed Detour Route

Virginia Department

of Transportation

John G. Lewis Memorial Bridge over Catoctin Creek · John G. Lewis Memorial Bridge over Catoctin...

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