john g. lewis memorial bridge over catoctin creek · john g. lewis memorial bridge over catoctin...
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John G. Lewis Memorial Bridge over Catoctin Creek
December 5, 2018
Project Location
Virginia Department
of Transportation
John G. Lewis Memorial Bridge over Catoctin Creek
Two-Span Steel Beam Bridge with Glu-Lam Timber Deck and Existing Truss
December 5, 2018
Virginia Department
of Transportation
John G. Lewis Memorial Bridge over Catoctin Creek
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
treatment (drystack typ.)
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"
Two-Span Steel Beam Bridge with Glu-Lam Timber Deck and Existing Truss
John G. Lewis Memorial Bridge over Catoctin Creek
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
treatment (drystack typ.)
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
John G. Lewis Memorial Bridge over Catoctin Creek
Two-Span Steel Beam Bridge with Glu-Lam Timber Deck and Existing Truss
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
John G. Lewis Memorial Bridge over Catoctin Creek
Legend:
Maintenance Access Rd.
Proposed potential VDOT
construction easement
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
construction easement
Proposed temporary
Potential tree removal
Tree to remain
Existing structure to be removed
Temporary supports
Existing structure
Limit of grading / earthwork
December 5, 2018Proposed Public Hearing Plans
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
John G. Lewis Memorial Bridge over Catoctin Creek
December 5, 2018Proposed Public Hearing Plans
Proposed Detour Route
Virginia Department
of Transportation
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