PL14_C-10.pdf
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- Solicitation number
- W912DR22B0007
About this file
This document package includes construction drawings and specifications for maintenance and improvement projects at the Second High Reservoir in Washington, DC. The U.S. Army Corps of Engineers, Baltimore District is soliciting fixed-price bids to replace the brick sample building, 24-inch drain line, and perimeter fence at the reservoir and install mechanical mixers, seal interior joints and cracks, and add a roof sub-drainage system and communications antenna. The reservoir is a critical part of the water distribution system for over one million people, so the outage period for this work is restricted. Bids are due by the date specified in solicitation number W912DR22B0007.
The construction drawings provide details for the proposed repairs and upgrades, including drainage and waterproofing details, as well as notes specifying requirements for removing the existing waterproof membrane, preparing surfaces, and applying repair patches.
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Text version
EXISTING
ROOF DECK
8"
1. COVER SOIL NOT SHOWN FOR CLARITY.
NOTES:
EXISTING
GRADE
VA
R
IE
S
NEW DRAINAGE
GEOTEXTILE
NEW AASHTO
NO. 57 STONE
4"Ø PERFORATED
SCH 40 PVC PIPE
2' TRENCH
EXISTING
WATERPROOFING
MEMBRANE
BACKFILL FROM
EXCAVATED SOIL
EXISTING GROUND
NEW SOD
4' ' M
IN
AASHTO NO. 57 STONE, 36" MAX DEPTH,
MAINTAIN MINIMUM DEPTHS AROUND PIPE
PERFORATED SCH 40 PVC
PIPE (SEE DRAWING C-03
FOR DIA.)
DRAINAGE GEOTEXTILE
EXISTING WATERPROOFING
MEMBRANE
EXISTING CONCRETE
ARCH ROOF
2'-6"
6''
2'-6'' MIN.
DRAINAGE
GEOTEXTILE
PERFORATED SCH 40
PVC PIPE LAID AT 0.3%
SLOPE (SEE DRAWING
C-03 FOR DIA.)
18" SQUARE
9"9"
6"
FINISH
GRADE
8" PVC RISER
AL
L
AR
O
U N
D 3/
4" C
H
AM
FE
R
1'-6" x 1'-6" SQUARE
CONCRETE PAD
FLOW
INTERIOR SLAB OR
EXTERIOR GRADE
PROVIDE A PLUG WYE
HERE IF AT BEGINNING
OF RUN
4, 6, 8" DIA PVC
SCH 40 PIPE
CLEANOUT CAP CLEANOUT WYE
CLEANOUT WYE
RAISED HEX-HEAD PVC
CLEANOUT IN YARD,
RECESSED KEY PVC
CLEANOUT IN PAVED AREAS
WATERPROOF MASTIC (TYP),
SEE MEMBRANE TERMINATION
DETAIL 5 ON THIS PAGE
6''
3-FT WIDE SELF ADHERED
WATERPROOFING
MEMBRANE (TYP)
MEMBRANE
BOOT
MEMBRANE
APRON
EXISTING
WATERPROOFING
MEMBRANE
6''
MEMBRANE
BOOT
MEMBRANE
APRON
WATERPROOF MASTIC (TYP),
SEE MEMBRANE TERMINATION
DETAIL 5 ON THIS PAGE
3-FT WIDE SELF ADHERED
WATERPROOFING
MEMBRANE (TYP)
EXISTING
WATERPROOFING
MEMBRANE
N
EW
S
TU
B C
O
LU
M N
EXISTING LOW
DENSITY CONCRETE
GRADE
FLOW
DOUBLE WYE PLAN VIEW
8" PIPE
8''x8''x8'' DOUBLE WYE
EX
IS
TI
N
G
ST
R U
C
TU
R E
MEMBRANE
APRON
STAINLESS STEEL BATTEN
STRIP (CONTINUOUS) AND
SHOT ANCHORS @12" CC
HOT AIR WELD
EXISTING WATERPROOFING
MEMBRANE
ROOF DECK
1'
1. CONTRACTOR SHALL REMOVE THE DAMAGED AREA
OF WATERPROOF MEMBRANE AND PREPARE
SURFACE TO APPLY REPAIR DETAIL.
2. SEAMING EQUIPMENT, METHODS AND SEALANT
SHALL BE APPROVED BY THE WATERPROOFING
MEMBRANE MANUFACTURER.
NOTES:
NEW WATER PROOFING
MEMBRANE
12''
MIN 12
M
IN
M
IN
M
IN
M
IN
12''
MIN
12''
MIN
12''
MIN
EXISTING 60 ML HDPE WATERPROOF
MEMBRANE
60 MIL MIN SELF-ADHERING ELASTOMETRIC
SHEET WATERPROOF MEMBRANE PATCH
RIP, TORN, OR DAMAGED EXISTING
HDPE WATERPROOF MEMBRANE
ROOF-TOP SOIL LAYER
EXPOSE 12-INCHES OF EXISTING MEMBRANE
BEYOND PROPOSED HDPE PATCH
(TYP AROUND ALL SIDES OF PATCH)
NEW PIPE
CONCRETE WALL
PIPE Ø PLUS 6''
NON-SHRINK GROUT
H O
LE
T
O
TA
L D
IA
M
ET
ER
0.
2.
4.
6.
8.
0.
EXISTING AREA TO
BE REPAIRED
AP
PR
O X.
5'
APPROX. 25'
AA
PERMANENT EROSION GEOTEXTILE
BLANKET ANCHOR TOP AND BOTTOM.
STAKE/PIN AS RECOMMENDED BY
MANUFACTURER
2' MIN
2' MIN
PERMANENT VEGETATION TO
MATCH SURROUNDING AREA
FILL WITH SUITABLE MATERIAL
ACCORDING WITH SPECIFICATION
SECTION 32 92 23 - SODDING
EXISTING TOP
OF BANK
EXISTING BOTTOM
OF BANK
DRAWING NUMBER PLATE
SCALE: DATE: SHEET:
WASHINGTON AQUEDUCT
WASHINGTON, DC
MAINTENANCE AND IMPROVEMENTS
MARCH 2022
SECOND HIGH RESERVOIR
Nova Consulting
U.S. ARMY ENGINEER DISTRICT, BALTIMORE
CORPS OF ENGINEERS
BALTIMORE, MARYLAND
STEVEN S. EAGLE, PE
AS SHOWN
80.2-2.7-14 14
C-10
CIVIL
CIVIL DETAILS 1
SCALE: NTS
PERIMETER DRAINAGE SYSTEM
C-10
SCALE: NTS
TYPICAL ROOF DRAIN TRENCH DETAIL
C-10
SCALE: NTS
TYPICAL UNDERDRAIN CLEANOUT DETAIL
C-10
SCALE: NTS
TYPICAL WATERPROOFING @ JUNCTION OF
HORIZONTAL TO VERTICAL SURFACE DETAIL
C-10
SCALE: NTS
DOUBLE WYE DETAIL
C-03
SCALE: NTS
TYPICAL WATERPROOF
MEMBRANE TERMINATION DETAIL
C-10
SCALE: NTS
TYPICAL WATERPROOF MEMBRANE REPAIR DETAIL
C-10
SCALE: NTS
TYPICAL SEAL PIPE OPENING
C-10
SCALE: NTS
SLOPE REPAIR DETAIL
C-02
SCALE: NTS
SLOPE REPAIR DETAIL
C-10 A
1 SSE5/2022 AMENDMENT 00021
AutoCAD SHX Text
REV
AutoCAD SHX Text
DATE
AutoCAD SHX Text
DESCRIPTION
AutoCAD SHX Text
BY
AutoCAD SHX Text US Army Corps
AutoCAD SHX Text of Engineers
AutoCAD SHX Text
A/E PRINCIPAL
AutoCAD SHX Text
SEAL:
AutoCAD SHX Text
APPROVED:
| Sheets and Views |
| C-10 |
| 2022-05-03T16:46:29-0400 | |
| Steven S. Eagle P.E. 43684 State of Florida |
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