PL22_S-07.pdf
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- Solicitation number
- W912DR22B0007
About this file
This document package includes structural drawings and details for the Second High Reservoir Maintenance and Improvements project in Washington, DC. The project involves upgrades and improvements to address operational and sanitary issues at the subsurface Second High Reservoir, which has a capacity of 15 million gallons and is a critical component of the water distribution system. Work includes replacement of the brick Sample Building, 24-inch drain line, installation of mechanical mixers and a radio communications antenna, sealing of all interior joints and cracks, and installation of a roof sub-drainage system and perimeter fence replacement. Drawings provide specifications for aluminum ladders, guards, handrails and access doors to be installed at the reservoir. The related federal contract opportunity is a firm-fixed-price construction contract to be awarded by the U.S. Army Corps of Engineers, Baltimore District in accordance with FAR Part 14. The project aims to improve water quality and operation within the distribution system by implementing upgrades during a restricted reservoir outage period.
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Text version
SECTIONSECTION ELEVATION
R U
N G
S
O C
T Y P
4" 8" 2'-4 1/2"
18"
1/4
TYP
1/4
TYP
PROVIDE SELF-CLOSING
GATE AT ALL LADDERS
AND AT ACCESS POINTS
WHERE INDICATED ON
THE CONTRACT DWGS
CAST AL BASE FLANGE,SEE
PLAN VIEW DETAIL S-05-060,
OR 6"x6"x1/4" AL BASE PL
2-5/8" SST ANCHOR BOLTS
AND INSERTS, TYP
BRACKETS EQUALLY
SPACED AT NOT
MORE THAN 5'-0" OC
1 1/2" AL PIPE RAIL
3/4" MIN CLOSED
EXTRUDED AL RUNGS
2 1/2"x3/8" ALUMINUM
BRACKETS W/ 3/4" SST
ANCHOR BOLTS AND INSERTS
OR ADHESIVE ANCHORS
IF CONCRETE IS AVAILABLE FOR BASE
REPLACE BOTTOM BRACKET WITH AL
PLATE AND SST ANCHOR BOLTS AS
SHOWN AT TOP OF LADDER
FLOOR OR
TOP OF WALL
WALL
ALTERNATE
PLAN
PLAN
ELEVATION
SURFACE MOUNTED
TO CONCRETE
SIDE MOUNT
TO CONCRETE
WALL HANDRAIL1
/4
C
L R
P L
M A X
M A X
M A X
4" MAX CLR
GUARD TYPE IIGUARD TYPE I
1 1/2" AL
PIPE RAILING
1/2" AL PIPE,
VERTICAL
TOEBOARD, TYPICAL
ALL GUARDS
NOTE:
UNLESS SHOWN OTHERWISE ON THE
CONTRACT DRAWING, GUARDS SHALL BE TYPE I.
/4
M
A X
/2
M
IN
M
IN
EXTRUDED ALUMINUM
TOEBOARD
EXTRUDED AL
ADAPTER (USED ONLY
WITH AL BASE FLANGE)
1 1/2" ALUMINUM
PIPE POST
1 1/2"x1/8" AL CLAMP
3/8"Ø SST SET SCREWS
CAST AL BASE FLANGE
4-1/2"Ø SST
ADHESIVE ANCHORS
"T Y P
6 1/2"
1 1/2" ALUMINUM
PIPE POST
TOP OF CONCRETE
1/2"Øx5 1/2" SST ADH
ANCHORS, TYP
6 1/2"x2" ALUMINUM SIDE
MOUNT BRACKET, TYP
3/8"Ø SET SCREWS
6 1/2"
3/4" 2 1/2" 2 1/2" 3/4"
3/4" MIN 3 1/2" MIN 3/4" MIN
M
IN
5" MIN
6'-0" MAX 6'-0" MAX
M
IN
M
IN
EDGE OF CONCRETE
4-1/2"Ø SST ADHESIVE ANCHORS
9/16"Ø HOLES
CAST AL BASE PLATE
CLEAR
2 1/4"
/2
C L E A
RBRACKET
HANDRAIL
WALKING SURFACE
SECTION
PLAN
ANGLE FRAME CHANNEL FRAME/WATERTIGHT
NOTE:
OPENINGS LARGER THAN 42 INCHES IN EITHER
DIRECTION SHALL HAVE DOUBLE LEAF DOORS.
S E
E P
L A
N S
O P
E N
IN
G
V A
R
IE
S
SEE PLANS
OPENING VARIES
SST HEAVY DUTY HINGE, TYP
GUIDE ARM, TYP
LIFTING MECHANISM, TYP
REMOVABLE COVER PLUG
REMOVABLE WRENCH
ACCESS DOOR
SST LOCK
AUTOMATIC
HOLD-OPEN ARM
CONTINUOUS GASKET
ALL AROUND
ALUMINUM ANGLE FRAME
FALL THROUGH
PREVENTION SYSTEM
REQUIRED AT ALL OPENINGS
LIFTING MECHANISM
PLATE MEMBER FOR
ATTACHMENT OF
LIFTING MECHANISM
SST HEAVY DUTY HINGE
ALUMINUM CHANNEL
FRAME WITH INTEGRAL
GUTTER AND ANCHORS
DRAIN COUPLING
DRAIN PIPE, BY
CONTRACTOR TO
NEAREST ACCEPTABLE
DISCHARGE POINT
Nova Consulting
REV DATE DESCRIPTION BY
U.S. ARMY ENGINEER DISTRICT, BALTIMORE
WASHINGTON AQUEDUCT
WASHINGTON, DC
SCALE: DATE:
DRAWING NUMBER PLATE
SHEET:
CORPS OF ENGINEERS
BALTIMORE, MARYLAND
SECOND HIGH RESERVOIR
MAINTENANCE AND IMPROVEMENTS
APPROVED:
A/E PRINCIPAL
SEAL:
MARCH 2022
80.2-2.7-.
US Army Corps of Engineers
S-07
STRUCTURAL DETAILS - SHEET 2
STRUCTURAL
AS SHOWN
MAY 22 AMENDMENT 0002 CTP
CHRISTOPHER T. PHILLIPS, PE
1" = 1'-0"S-07
8 DETAIL - ALUMINUM LADDER
1" = 1'-0"S-07
6 DETAIL - ALUMINUM GUARDS AND HANDRAILS
1" = 1'-0"S-07
7 DETAIL - ALUMINUM ACCESS DOOR
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