VOL_3_21B0007_Plans_AM0003.pdf
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- Attached to
- MNA-LGA-LMA Headgate Rep Pit Upgrades Federal contract opportunity
- Solicitation number
- W912EF21B0007
About this file
This document package includes technical specifications and drawings for upgrades to the headgate repair pits at McNary Lock and Dam on the Columbia River. The solicitation is for design and construction services to modify existing stationary and extending platforms used for maintenance access. Key details include Solicitation Number W912EF21B0007 issued by the U.S. Army Corps of Engineers Walla Walla District for the MNA-LGA-LMA Headgate Rep Pit Upgrades project. The specifications and drawings provide requirements for grating, support beams, safety railings, and slide assemblies on the multi-stage extending and stationary platforms to improve workspace conditions for operations and maintenance personnel.
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Text version
SECTION 5
SECTION 4
SECTION 3
SECTION 2
SECTION 1
SECTION 1
SECTION 2
SECTION 3
SECTION 4
SECTION 5
CHAIN DRIVE ROD (TYP)
A N
S I
D
W
L L
A W
A L
L A
D
IS
T R
IC
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F
IL
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L O
C K
A N
D D
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M B
IA
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IV
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R O
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G O
N A
N D
W A
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IN
G
T O
N
P O
W E
R H
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G A
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P A
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P
IT
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P G
R A
D E
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A U
T H
D K
L O
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M-508
L L
A W
A L
L A
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IN
G T
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VOLUME 3
K E
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IN
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P .E
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T A
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N D
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P L
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F O
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W
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FINAL
S T
A G
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M D
P -1
-3 -3
/2
A4
FRONT ELEVATION: STAGE 2 PLATFORM
SCALE: NTS
E1
SCALE: NTS
SECTION: TWO STAGE PLATFORM DETAIL
/4 /2
M
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IF
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D E
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D E
D W
A L
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R E
M O
V E
D E
X T
R A
C H
A
IN
D R
IV
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R O
D S
41" GUARD RAIL
41" GUARD RAIL
56" GUARD RAIL
56" GUARD RAIL
56" GUARD RAIL
S O
L
IC
IT
A
T
IO
N N
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D E
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D B
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D A
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SHEET ID
A
B
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D
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F
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1 98765432
®of Engineers
US Army Corps
U .S
A
R M
Y C
O R
P S
O F
E N
G
IN
E E
R S
M-501
REF
M-501
REF
STATIONARY PLATFORM GRATING
STATIONARY PLATFORM SUPPORT BEAM
STAGE TWO CARRIAGE
EXTENDING PLATFORM
STAGE ONE CARRIAGE
EXTENDING PLATFORM
TOP OF STATIONARY PLATFORM GRATING
PLATFORM WALKING SURFACE SLIDES ON
1/4" DIAMOND PLATE EXTENDING
M-502
A1
M-502
A1
M-502
A1
M-502
A1
M-502
A1
M-511
A2
M-510
A2
M-510
A2
M-510
A2
M-511
A2
M-506
C7
M-509
A4
M-509
C4
M-509
C4
M-509
C4
M-509
A8
MN454212M-508XXX
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