Alamosa Drainage Project - Advertisement - Appendix K - Construction Drawings.pdf
PDF 19 MB Posted
- Attached to
- Alamosa Facility Grading & Drainage Improvements State and local contract opportunity
- Solicitation number
- 26570
- Issued by
- Alamosa County, Colorado
About this file
The document is a set of construction drawings for the Alamosa Facility Grading & Drainage project, prepared by the Colorado Department of Transportation (CDOT) for improvements at their facility located at 1205 West Avenue in Alamosa, CO. The drawings, dated 03/21/2025, cover comprehensive site plans including demolition, grading, drainage, erosion control, and site details across multiple sheets (C0.0 through C4.0). The project involves extensive site work including demolition of existing structures, grading and leveling of the site, installation of new drainage systems, stormwater management, and associated infrastructure improvements.
The technical drawings outline specific environmental and construction requirements, including biological mitigation measures for migratory birds, hazardous materials handling protocols, and stormwater management strategies. The project includes provisions for protecting existing utilities, managing potential contaminated soils, and implementing erosion control best practices. The site appears to involve multiple metal buildings, concrete structures, and will require careful management of drainage, with specific attention to maintaining proper water flow, installing culverts, and managing site elevations. The drawings indicate a comprehensive approach to site redevelopment that prioritizes environmental compliance and infrastructure resilience.
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Text version
C0.0
C
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1. ALL MATERIALS AND CONSTRUCTION SHALL CONFORM TO CDOT M&S STANDARDS AND SPECIFICATIONS, CURRENT EDITION. ALL MATERIALS AND WORKMANSHIP SHALL BE SUBJECT TO INSPECTION BY CDOT. CDOT RESERVES THE RIGHT TO ACCEPT OF REJECT ANY MATERIALS AND WORKMANSHIP THAT DOES NOT CONFORM TO THEIR STANDARDS AND
SPECIFICATIONS.
2. THE CONTRACTOR SHALL BE SOLELY AND COMPLETELY RESPONSIBLE FOR CONDITIONS AT AND ADJACENT TO THE JOB SITE, INCLUDING SAFETY OF ALL PERSONS AND PROPERTY DURING PERFORMANCE OF THE WORK. THIS REQUIREMENT
SHALL APPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL WORKING HOURS.
3. THE METHODS OF CONSTRUCTION SHALL BE THE SOLE RESPONSIBILITY OF THE CONTRACTOR AND THEIR SUBCONTRACTORS. THE CONTRACTORS SHALL TAKE ALL REASONABLE PRECAUTIONS TO PROTECT WORK IN PROGRESS, HIS PERSONNEL AND VISITORS TO THE SITE FROM SOURCES OF INJURY. SUCH PRECAUTIONS SHALL INCLUDE BUT ARE NOT LIMITED TO: ERECTION OF BARRIERS, SHORING AND/OR BRACING OF EXCAVATIONS AND PROTECTION OF WORK IN PLACE
FROM INTRUSION BY TRESPASS OR WEATHER.
4. CDOT'S/ ENGINEER'S CONSTRUCTION REVIEW OF THE CONTRACTORS PERFORMANCE IS NOT INTENDED TO INCLUDE REVIEW OF THE ADEQUACY OF THE CONTRACTOR’S SAFETY MEASURES IN, ON OR NEAR THE CONSTRUCTION SITE.
5. TRENCHES AND OPEN EXCAVATIONS SHALL BE APPROPRIATELY MARKED AND PROTECTED BY THE CONTRACTOR. NO TRENCHES OR EXCAVATIONS SHALL REMAIN UNPROTECTED OVERNIGHT. CONTRACTOR SHALL PROVIDE PROTECTION SUFFICIENT TO MAINTAIN PUBLIC SAFETY, IN ACCORDANCE WITH EL PASO COUNTY AND OSHA REGULATIONS AS WELL AS
THE REQUIREMENTS OF CDOT.
6. THE CONTRACTOR SHALL HAVE ONE SIGNED COPY OF THE APPROVED PLANS AND ONE COPY OF THE APPROPRIATE DESIGN AND CONSTRUCTION STANDARDS AND SPECIFICATIONS ON THE JOB SITE AT ALL TIMES.
7. CONTRACTOR IS RESPONSIBLE FOR CONTROL OF EROSION OF ALL AREAS OF CONSTRUCTION THROUGH THE USE OF SILT FENCE, ROCK SOCKS, ETC. PROVIDE ROCK SOCK BARRIERS ACROSS DITCHES AND INLETS NEAR TRENCH EXCAVATION.
8. ALL CONSTRUCTION ACTIVITIES SHALL COMPLY WITH THE CDOT STORMWATER MANAGEMENT (SWMP) NOTEBOOK
PREPARED FOR THE PROJECT SITE.
9. EXISTING TOPOGRAPHY SHOWN WAS TAKEN FROM A FIELD SURVEY CONDUCTED IN DECEMBER 2018. BENCHMARK
ELEVATIONS AND DATUM ARE AS NOTED.
10. EXISTING UTILITIES SHOWN ARE BASED ON THE BEST INFORMATION AVAILABLE TO THE ENGINEER. PRIOR TO EXCAVATING, THE CONTRACTOR SHALL FIELD LOCATE (INCLUDING DEPTHS) BY POTHOLING ALL EXISTING UTILITIES WHICH
MAY CONFLICT WITH THE PROPOSED CONSTRUCTION.
11. THE CONTRACTOR SHALL PROVIDE THE OWNER AND ENGINEER WITH A FIELD SHEET INDICATING THE LOCATION AND DEPTH OF ALL UTILITIES VERIFIED BY POTHOLING WITHIN 2 BUSINESS DAYS OF COMPLETING THE POTHOLING AND PRIOR TO
COMMENCING WORK IN THE VICINITY OF UTILITIES VERIFIED BY POTHOLING.
12. IF THE CONTRACTOR DISCOVERS ANY CONFLICT BETWEEN THE DESIGN LOCATION OF WORK UNDER THIS CONTRACT
AND AN EXISTING UTILITY HE SHALL NOTIFY THE OWNER AND THE ENGINEER IMMEDIATELY.
13. IF THE CONTRACTOR ENCOUNTERS ANY UNDOCUMENTED LINES, THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE
OWNER AND NOTIFY THE ENGINEER SO THAT ANY CONFLICTS CAN BE MITIGATED.
14. ALL EXISTING UTILITIES SHALL BE PROTECTED FROM DAMAGE BY THE CONTRACTOR. THE CONTRACTOR IS SOLELY RESPONSIBLE FOR THE REPAIR OF DAMAGE TO UTILITIES SHOWN HEREON AT THIER OWN EXPENSE.
15. EXISTING FENCES, SITE IMPROVEMENTS AND STRUCTURES SHALL BE PROTECTED FROM CONSTRUCTION RELATED
DAMAGE. CONTRACTOR SHALL CORRECT OR RESTORE SUCH DAMAGE AT CONTRACTOR'S EXPENSE.
16. IF DEWATERING IS REQUIRED, A STATE CONSTRUCTION DEWATERING PERMIT IS REQUIRED FOR DISCHARGES TO A STORM SEWER, CHANNEL, OR ANY ROADWAY THAT IS A TRIBUTARY TO THE AFOREMENTIONED FACILITIES, OR ANY WATERS
OF THE UNITED STATES.
17. THE CONTRACTOR IS RESPONSIBLE FOR ESTABLISHING LINE AND GRADE, IN CONFORMANCE WITH THE INFORMATION SHOWN ON THE PLANS, FOR ALL FACILITIES TO BE CONSTRUCTED AS PART OF THE SCOPE OF THE CDOT ALAMOSA GRADING AND DRAINAGE PROJECT. THIS INCLUDES RESTORING TO THEIR ORIGINAL LINE AND GRADE ALL SITE IMPROVEMENTS THAT ARE REMOVED AND REPLACED AS PART OF THIS PROJECT. THE ENGINEER OR OWNER MAY, FROM TIME TO TIME, CHECK THE LINE AND GRADE OF COMPLETED SECTIONS OF THE WORK OR SECTION OF THE WORK IN PROGRESS. THIS, HOWEVER, IN NO WAY RELIEVES THE CONTRACTOR OF THEIR RESPONSIBILITY IN ESTABLISHING THE LINE AND GRADE OF THE WORK IN
CONFORMANCE WITH THE PLANS.
18. THE CONTRACTORS SHALL FULLY FAMILIARIZE HIM/HER SELF WITH THE REQUIREMENTS AS REPRESENTED IN THE DRAWINGS AND WITH THE CONDITIONS AT THE SITE. NO ADDITIONAL COSTS TO THE OWNER SHALL BE ACCEPTED FOR
ADDITIONAL WORK FOR FORESEEABLE OR EXISTING CONDITIONS.
19. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE PROPER DISPOSAL OF ALL TRASH, DEBRIS AND EXCAVATED
MATERIAL GENERATED AS A RESULT OF HIS/HER WORK.
20. THE CONTRACTOR SHALL ADHERE TO THE OWNER'S REQUIREMENTS FOR CONSTRUCTION PARKING AND SHALL REQUIRE THAT THEIR EMPLOYEES AND ALL SUB-TRADE EMPLOYEES PARK ONLY IN DESIGNATED AREA(S). THE OWNER'S CONTACT WILL ADVISE THE CONTRACTOR ON THE SPECIFICS OF THESE REQUIREMENTS AT THE PRE-CONSTRUCTION
MEETING.
21. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ADJUSTING THE RIM OF ALL EXISTING AND PROPOSED MANHOLES, CLEANOUTS AND INLETS TO FINISHED GRADE.
22. THE CONTRACTOR SHALL BE RESPONSIBLE FOR EXPORTING AND DISPOSAL OF EXCESS EXCAVATED MATERIAL OR
THE IMPORT OF FILL MATERIAL AS REQUIRED BY THE GRADING PLANS.
23. THIRD PARTY TESTING SHALL BE PERFORMED BY THE GEOTECHNICAL ENGINEER OF RECORD AND PAID FOR BY THE CONTRACTOR. IT IS THE CONTRACTOR'S RESPONSIBILITY TO COORDINATE WITH THE GEOTECHNICAL ENGINEER TO
SCHEDULE ALL TESTING AND OBSERVATION REQUIRED BY THE PROJECT DOCUMENTS.
24. ALL EARTHWORK AND GRADING TO BE IN CONFORMANCE WITH THE GEOTECHNICAL ENGINEERING STUDY, PREPARED
BY KUMAR & ASSOCIATES DATED OCTOBER 8, 2019, PROJECT #19-2-176.
25. SITE BENCHMARK: #4 REBAR IN SOUTHWEST CORNER OF SITE, ELEVATION=7542.60
26. WORK WITHIN CDOT ROW TO BE PERFORMED IN ACCORDANCE WITH APPLICABLE STATE OF COLORADO STANDARD SPECIFICATION FOR ROAD AND BRIDGE CONSTRUCTION AND MAY REQUIRE A CDOT SPECIALTY USE PERMIT (SUP).
27. DURING ALL SUBSURFACE ACTIVITIES, WORKERS SHALL BE ALERT FOR VISUAL AND OLFACTORY SIGNS OF CONTAMINATION. IF CONTAMINATION IS ENCOUNTERED, WORK SHALL STOP AND PROCEDURES ESTABLISHED IN THE CDOT 250 SPEC SHALL BE FOLLOWED. ANY CONTAMINATED SOILS OR LANDFILL MATERIAL SHALL BE PROPERLY HANDLED AND
SAMPLED PRIOR TO DISPOSAL.
GENERAL NOTES
0.43%
41.5
41.5
41.5
ME
BIOLOGICAL COMMENTS
TO ENSURE COMPLIANCE WITH THE MBTA AND PREVENT UNANTICIPATED IMPACTS TO WILDLIFE DURING CONSTRUCTION
ACTIVITIES (I.E.DEMOLITION, GRADING), THE FOLLOWING CONDITIONS SHOULD BE MET:
· TO THE EXTENT PRACTICAL, ALL VEGETATION REMOVAL AND WORK ON STRUCTURES NECESSARY TO COMPLETE THE PROJECT SHALL BE CONDUCTED OUTSIDE OF THE NESTING SEASON FOR MIGRATORY BIRDS (APRIL 1 TO AUGUST 31). A SURVEY OF THE PROJECT AREA FOR NESTING MIGRATORY BIRDS SHALL BE COMPLETED BY THE CDOT BIOLOGIST PRIOR TO ANY VEGETATION REMOVAL DURING THE NEST SEASON. IF ACTIVE NESTS ARE LOCATED, 50 FT. WORK ZONE BUFFERS MUST BE PROVIDED AROUND ACTIVE NESTS. THESE SURVEY AND BUFFER REQUIREMENTS FOR MIGRATORY BIRD NESTS DO NOT APPLY IF THE VEGETATION REMOVAL OR WORK ON STRUCTURES IS CONDUCTED OUTSIDE OF THE
APRIL 1 TO AUGUST 31 MIGRATORY BIRD NEST SEASON.
· STAGING AREAS FOR CONSTRUCTION EQUIPMENT AND MATERIALS WILL UTILIZE PREVIOUSLY DISTURBED AREAS SUCH
AS MAINTENANCE YARD, ROADS, GRAVELED PARKING AREAS, AND SHOULDER PULL OUTS.
· CONSTRUCTION ACTIVITIES WILL BE LIMITED TO DAYLIGHT HOURS. NO NIGHTTIME WORK WILL BE ALLOWED IN ORDER
TO MINIMIZE IMPACTS TO WILDLIFE
HAZARDOUS MATERIALS COMMENTS:
· THE PROJECT HAS A SMALL POTENTIAL TO ENCOUNTER PETROLEUM PRODUCTS HAZARDOUS MATERIALS. IN THE EVENT THAT KNOWN OR SUSPECT CONTAMINATED SOILS OR GROUNDWATER IS ENCOUNTERED DURING PROJECT EXCAVATION. THE CONTRACTOR SHALL IMMEDIATELY HALT AT THAT LOCATION AND THE CDOT PROPERTY MANAGEMENT ENVIRONMENTAL SPECIALIST SHALL BE CONTACTED- THERESA SANTANGELO- 3030917-6528. IF NECESSARY SPECIAL HANDLING PROCEDURES, AS OUTLINED IN SECTION 250 OF CDOT'S STANDARD SPECIFICATIONS FOR ROAD AND BRIDGE CONSTRUCTION SHALL BE IMPLEMENTED AS DIRECTED BY THE CDOT PROPERTY MANAGEMENT
ENVIRONMENTAL SPECIALIST AND SHALL BE PAID FOR AS A CHANGE ORDER TO THE PROJECT.
WATER QUALITY
· THIS PROJECT WILL REQUIRE A CDPHE STORMWATER PERMIT. THE CONTRACTOR WILL BE REQUIRED TO OBTAIN THE SCP BEFORE CONSTRUCTION BEGINS AND INITIATE THE PROCESS OF ADDING CDOT TO THE PERMIT.
S
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DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
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3-
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EXIST. STEEL POWER OUTLET
BOLLARDS AND UNDERGROUND
ELECTRICAL CONDUIT TO REMAIN
3 3 3
1 1
6 6
25' DRAINAGE EASEMENT
REC. #_________________
1. FENCE/GATE TO REMAIN, PROTECT FROM DAMAGE, TYP.
2. OUTLET BOX TO REMAIN, ONLY REMOVE BACK WALL AND 18" CMP
3. REMOVE VALLEY GUTTER/CURB & GUTTER AND ASPHALT AS SHOWN, TYP.
4. SAWCUT LINE
5. BUILDINGS/STRUCTURES TO REMAIN, PROTECT FROM DAMAGE, TYP.
6. CONCRETE/ASPHALT PAVING TO REMAIN, PROTECT FROM DAMAGE, TYP.
7. BUILDING TO BE REMOVED BY CDOT PRIOR TO CONSTRUCTION. NOT IN
CONTRACT.
DEMOLITION WORK NOTES:
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
TE
N o.
D
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C R
IP
TI
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3-
2-
FA
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3-
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NOTE:
REMOVE AND RESET EXISTING
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EARTHWORK IS COMPLETE
METAL
BLDG.
METAL BLDG.
METAL
BLDG.
ABANDONED
WELL TO REMAIN
COOP ROAD (ROAD 8 S)
30' DRAINAGE EASEMENT
REC. #_________________
LOT 2LOT 1
TRACT 9TRACT 10
1. FENCE/GATE TO REMAIN, PROTECT FROM DAMAGE, TYP.
2. OUTLET BOX TO REMAIN, ONLY REMOVE BACK WALL AND 18" CMP
3. REMOVE VALLEY GUTTER/CURB & GUTTER AND ASPHALT AS SHOWN, TYP.
4. SAWCUT LINE
5. BUILDINGS/STRUCTURES TO REMAIN, PROTECT FROM DAMAGE, TYP.
6. CONCRETE/ASPHALT PAVING TO REMAIN, PROTECT FROM DAMAGE, TYP.
7. BUILDING TO BE REMOVED BY CDOT PRIOR TO CONSTRUCTION. NOT IN
CONTRACT.
DEMOLITION WORK NOTES:
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
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N o.
D
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C R
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3-
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NOTE:
REMOVE AND RESET EXISTING
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BRICK BUILDING
FF=7546.10
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2. OUTLET BOX TO REMAIN, ONLY REMOVE BACK WALL AND 18" CMP
3. REMOVE VALLEY GUTTER/CURB & GUTTER AND ASPHALT AS SHOWN, TYP.
4. SAWCUT LINE
5. BUILDINGS/STRUCTURES TO REMAIN, PROTECT FROM DAMAGE, TYP.
6. CONCRETE/ASPHALT PAVING TO REMAIN, PROTECT FROM DAMAGE, TYP.
7. BUILDING TO BE REMOVED BY CDOT PRIOR TO CONSTRUCTION. NOT IN
CONTRACT.
DEMOLITION WORK NOTES:
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
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N o.
D
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C R
IP
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3-
2-
FA
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3-
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FF=7546.77
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30' DRAINAGE EASEMENT
REC. #_________________
TRACT 8
LOT 7LOT 6LOT 5LOT 4LOT 3LOT 2LOT 1
TRACT 9TRACT 10
SOUTH LINE OF SECTION 9 S 89°54' W
25' DRAINAGE EASEMENT
REC. #_________________
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DATE:
CDOT PROJECT NO.
DRAWING NUMBER
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FF=7546.10
US
METAL BUILDING
FF=7545.02
METAL BUILDING
FF=7545.00
METAL BUILDING
METAL
BUILDING
FF=7546.50
G
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SHED
WV
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GUY
W
WWV
FH
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1. WALL/CURB, TOW= 7544.00 MIN. W/ NOTCH WEIRS PER PLAN, RE: DETAIL 5/C4.0
2. 4' VALLEY GUTTER WITH MIN. 5'-0" WIDE FULL-DEPTH ASPHALT PATCH ON EACH SIDE, RE: DETAIL
1/C4.0
3. CATCH TYPE CURB & GUTTER WITH MIN. 5'-0" WIDE FULL-DEPTH ASPHALT PATCH, RE: DETAIL 4/C4.0
4. RECYCLED ASPHALT PAVEMENT FILL
5. FULL DEPTH ASPHALT PATCH AT BUILDINGS DEMOLISHED BY CDOT
SITE WORK NOTES:
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
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METAL BUILDING
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SHED
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SLOPE SWALE AT 0.22%
1 3
OUTLET BOX TO REMAIN AT EXISTING
CULVERT FOR WQ RELEASE. REMOVE
BACK WALL AND 18" CMP
ALIGN NEW SWALE WITH FLOWLINE
OF NEW SWALE, FL=41.22
534 SY 12" THICK TYPE L RIPRAP
(TOTAL LENGTH = 146')
25' DRAINAGE EASEMENT
REC. #_________________
12" THICK TYPE L RIPRAP, 2'
EITHER SIDE OF CONCRETE
EXTEND BERM ON SOUTH SIDE, TO 42.10,
1. WALL/CURB, TOW= 7544.00 MIN. W/ NOTCH WEIRS PER PLAN, RE: DETAIL 5/C4.0
2. 4' VALLEY GUTTER WITH MIN. 5'-0" WIDE FULL-DEPTH ASPHALT PATCH ON EACH SIDE, RE: DETAIL
1/C4.0
3. CATCH TYPE CURB & GUTTER WITH MIN. 5'-0" WIDE FULL-DEPTH ASPHALT PATCH, RE: DETAIL 4/C4.0
4. RECYCLED ASPHALT PAVEMENT FILL
5. FULL DEPTH ASPHALT PATCH AT BUILDINGS DEMOLISHED BY CDOT
SITE WORK NOTES:
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
TE
N o.
D
ES
C R
IP
TI
O
N
3-
2-
FA
X:
3-
2-
W .H
O W
A R
D P
L
C ol or ad o D ep ar tm en t o f T ra ns po rta tio n
P ho ne
D E
N
VE
R , C
O
BMC
03/21/2025
7-
A
LA
M O
S A
F A
C
IL
IT
Y
G R
A D
IN
G
D
R A
IN
A
G E
W E
S T
A
VE
A
LA
M
O S
A , C
O
DRAWN BY: CDB
D E
P A
R T
M E
N T
O F
T R
A N
S P
O R
T A
T
IO
N
/2
/2
FO
R C
O N S
TR
U C
TI
O
N
B
ID
W E
S T
S
IT
E P
LA
N
C1.2
M
AT
C H
LI
N
E, R
E:
C
1.
FO
R
C O
N T.
KEY MAP
MATCHLINE, RE: C1.3 FOR CONT.
METAL BLDG.
METAL
BLDG.
ABANDONED
WELL TO REMAIN
DAYLIGHT 18" HDPE IN DITCH
W/ CONC. HEADWALL & 18" FRESNO SERIES 5900 FLAP
GATE OR APPROVED EQUAL, RE: DETAIL 8/C4.0
INV 18" HDPE=7538.98
CONC. HEADWALL, RE: DETAIL 8/C4.0
INV 18" HDPE=40.09
4'Ø MANHOLE, RIM=43.8
SET RIM OUTSIDE ASPHALT
18" INV. OUT=39.09
18" INV. IN=39.99
GRADE SWALE @ 0.22%
FIBER OPTIC CROSSING
TOP OF 2" F/O=40.69 (BOT=40.52)
INV. 18" CMP=39.02 (TOP=40.52, 0" CLEAR)
EXCAVATE ALONG FIBER OPTIC LINE A SUFFICENT DISTANCE TO FLEX THE F/O CONDUIT
ENOUGH TO PROVIDE MIN. 3" CLEARANCE .
GAS CROSSING
TOP OF 8" GAS=39.02
INV. 18" CMP=40.02 (12" CLEAR)
41.5 L.F. 18" HDPE @ 0.36%
12.7L.F. 18" HDPE @ 0.40%
GRADE SWALE AROUND EXIST. WELL @ 0.22%
GRADE SWALE @ 0.22%
COOP ROAD (ROAD 8 S)
FULL DEPTH ASPHALT PATCH, MATCH
EXISTING, 6" THICK MIN, RE: DET 2, C4.0
30' DRAINAGE EASEMENT
REC. #_________________
LOT 1
TRACT 9TRACT 10
4'x12'x12" THICK TYPE L RIPRAP
END 8' WIDE LFAT BOTTOM SECTION OF SWALE AND
TRANSITION TO 6" WIDE FLAT BOTTOM AT SOUTH
SIDE OF WELL, MAINTAIN 6" WIDTH TO SOUTH
6" WIDE FLAT BOTTOM SWALE WITH 3:1 SIDE
SLOPES, SLOPED AT 0.22% TO OUTFALL, BOTTOM
TO BE 18" WIDEx5" THICK CONCRETE PAD, REINF
W/ #4 @ 16" OC EA WAY
8' WIDE FLAT BOTTOM SWALE WITH
3:1 SIDE SLOPES, SLOPED AT 0.22%
BOTTOM TO BE 10'" WIDEx5" THICK
CONCRETE PAD, REINF W/ #4 @ 16"
OC EA WAY
EXTEND BERM ON EAST SIDE, NORTH OF WELL,
TO 42.10, TRANSITION TO GRADE ON EAST OF
BERM
EXTEND BERM ON SOUTH SIDE, TO 42.10,
TRANSITION TO GRADE ON SOUTH OF BERM
1+00
ST
A.
1+
.00
DA
YL
IG
HT
" H
DP
E
IN
D
IT
CH
W
/ H
EA
DW
AL
L &
" F
RE
SN
O
SE
RI
ES
F
LA
P
GA
TE
O R
AP
PR
OV
ED
E
QU
AL
IN
V
" H
DP
E=
.98
ST
A.
1+
.80
FI
BE
R
OP
TI
C
CR
OS
SI
NG
TO
P
OF
2" F
/O =4
0.6 9 (
BO
T=
.52
IN
V.
" H
DP
E=
.02 (T
OP
=4
0.5 2, 0"
CL
EA
R)
ST
A.
1+
.10 4'Ø
M
AN
HO
LE
F
LA
TT
OP
RI
M=
.92
" I
NV
. O
UT
=3
9.0
" I
NV
. IN
=3 9.9
ST
A.
1+
.10
GA
S
CR
OS
SI
NG
TO
P
OF
8" G
AS
=3
9.0
IN
V.
" C
MP
=4
0.0 2 (
" C
LE
AR
ST
A.
1+
.20
CO
NC
. H
EA
DW
AL
L
IN
V
" H
DP
E=
.09
41.5 L.F. 18"
HDPE @
0.36%
FINISHED
GRADE
EXISTING
GRADE
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
TE
N o.
D
ES
C R
IP
TI
O
N
3-
2-
FA
X:
3-
2-
W .H
O W
A R
D P
L
C ol or ad o D ep ar tm en t o f T ra ns po rta tio n
P ho ne
D E
N
VE
R , C
O
BMC
03/21/2025
7-
A
LA
M O
S A
F A
C
IL
IT
Y
G R
A D
IN
G
D
R A
IN
A
G E
W E
S T
A
VE
A
LA
M
O S
A , C
O
DRAWN BY: CDB
D E
P A
R T
M E
N T
O F
T R
A N
S P
O R
T A
T
IO
N
/2
/2
FO
R C
O N S
TR
U C
TI
O
N
B
ID
C1.3
S O
U
TH
S
IT
E
U
TI
LI
TY
P
LA
N
KEY MAP
MATCHLINE, RE: C1.2 FOR CONT.
PP PP
PP
PP
PP
CO
PP
PP
PP
G
G
BRICK BUILDING
FF=7546.10
US
METAL BUILDING
FF=7545.02
METAL BUILDING
FF=7545.00
METAL BUILDING
METAL BUILDING
FF=7546.77
METAL BUILDING
METAL
BUILDING
FF=7546.50
SHED
G
G
SHED
WV
WV
WV
GUY
WWV
CO
CO CO
CO
FH
FH
FH
WV
G
0.61%
METAL
BLDG.
METAL BLDG.
METAL
BLDG.
ABANDONED
WELL TO REMAIN
COOP ROAD (ROAD 8 S)
30' DRAINAGE EASEMENT
REC. #_________________
SITE BENCHMARK:
#4 REBAR
ELEV.=7542.60
CP NWPC:
#4 REBAR
ELEV.=7544.01
CP 101:
PK NAIL IN ASPHALT
ELEV.=7545.75
CP 105:
#4 REBAR
ELEV.=7545.17
CP 109:
PK NAIL IN ASPHALT
ELEV.=7546.09
CP 118:
PK NAIL IN ASPHALT
ELEV.=7544.01
CP SEPC:
#4 REBAR
ELEV.=7544.16
CP 107:
PK NAIL IN ASPHALT
ELEV.=7544.90
CP 106:
PK NAIL IN ASPHALT
ELEV.=7544.28
CP DAVIS:
YELLOW PLASTIC
CAP "DAVIS 225830"
ELEV.=7542.96
TRACT 8
LOT 7LOT 6LOT 5LOT 4LOT 3LOT 2LOT 1
TRACT 9TRACT 10
SOUTH LINE OF SECTION 9 S 89°54' W
25' DRAINAGE EASEMENT
REC. #_________________
H O
R
IZ
O N
TA
L
C O
N
TR
O L
P
LA
N
C1.4
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
TE
N o.
D
ES
C R
IP
TI
O
N
3-
2-
FA
X:
3-
2-
W .H
O W
A R
D P
L
C ol or ad o D ep ar tm en t o f T ra ns po rta tio n
P ho ne
D E
N
VE
R , C
O
BMC
03/21/2025
7-
A
LA
M O
S A
F A
C
IL
IT
Y
G R
A D
IN
G
D
R A
IN
A
G E
W E
S T
A
VE
A
LA
M
O S
A , C
O
DRAWN BY: CDB
D E
P A
R T
M E
N T
O F
T R
A N
S P
O R
T A
T
IO
N
/2
/2
FO
R C
O N S
TR
U C
TI
O
N
PP PP
PP
PP
CO
PP
PP
G
BRICK BUILDING
FF=7546.10
US
METAL BUILDING
FF=7545.02
METAL BUILDING
FF=7545.00
METAL BUILDING
METAL
BUILDING
FF=7546.50
G
G
SHED
WV
WV
GUY
WWV
FH
FH
WV
G
.01
ME
44.18
43.68 ME
43.88 44 .96
46.59
46.22 46.13
45.95
46.12 46.18
45.37
45.66
45.04
45.46
45.43
45.52
45.99
45.23
44.75
45.53
44.92
44.98
1.97%
1.84%
0.87%
2.3 6%
1.9 5%
2.4 1%
1.06%
0.7 1%
1.74%
2.8 8%
3.8 1%
5.7 2%
5.6 5%
2.32%
1.11%
2.6 0% 1.8
2% 2.6
1% 1.3 5%
1.5 9%
0.4 4%
0.3 3%
0.6 0%
0.24%
ME
ME
ME
ME
ME
ME
ME
ME
44.00
43.50
44.05 ME
.18
44.64
1.5 5%
MEME
ME
MEME
ME
ME
ME ME
ME
ME
E A
S T
G R
A D
IN
G
P
LA
N
C2.0
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
TE
N o.
D
ES
C R
IP
TI
O
N
3-
2-
FA
X:
3-
2-
W .H
O W
A R
D P
L
C ol or ad o D ep ar tm en t o f T ra ns po rta tio n
P ho ne
D E
N
VE
R , C
O
BMC
03/21/2025
7-
A
LA
M O
S A
F A
C
IL
IT
Y
G R
A D
IN
G
D
R A
IN
A
G E
W E
S T
A
VE
A
LA
M
O S
A , C
O
DRAWN BY: CDB
D E
P A
R T
M E
N T
O F
T R
A N
S P
O R
T A
T
IO
N
/2
/2
FO
R C
O N S
TR
U C
TI
O
N
B
ID
M
AT
C H
LI
N
E, R
E:
C
2.
FO
R
C O
N T.
PP
PP
G
METAL BUILDING
FF=7546.77
SHED
WV
CO
CO CO
CO
46 46
FH
.25
.75
M E
43.7942.32 ME 44.00
42.13 ME44.0042.10 ME
.78
.78
.91
44.89
44.46
44.72
3.58%
3.92%
0.61%
5.1 4%
4.5 9%
4.1 9%
2.2 4%
2.1 7%
1.0 7%
1.2 2%
0.4% 0.8%
0.5 0%
0.6%0.6%
42.00ME
0.22%
44.00
43.29 ME
44.00
43.21 0.4%
0.4%
.84
.34
ME
ME
MEME
SITE BENCHMARK:
#4 REBAR
ELEV.=7542.60
25' DRAINAGE EASEMENT
REC. #_________________
44.0042.91 ME
44.84HP
44.66HP
44.50HP
44.27
45.21HP
44.49HP
INSTALL COMPACTED RAP BERM AT
EDGE OF PROPERTY WITH 4:1 SIDE
SLOPES AND 1'-0" WIDE TOP WIDTH
41.05FL
41.05FL
41.00FL
41.00FL
40.82FL
40.82FL
40.78FL
40.78FL
W E
S T
G R
A D
IN
G
P
LA
N
C2.1
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
TE
N o.
D
ES
C R
IP
TI
O
N
3-
2-
FA
X:
3-
2-
W .H
O W
A R
D P
L
C ol or ad o D ep ar tm en t o f T ra ns po rta tio n
P ho ne
D E
N
VE
R , C
O
BMC
03/21/2025
7-
A
LA
M O
S A
F A
C
IL
IT
Y
G R
A D
IN
G
D
R A
IN
A
G E
W E
S T
A
VE
A
LA
M
O S
A , C
O
DRAWN BY: CDB
D E
P A
R T
M E
N T
O F
T R
A N
S P
O R
T A
T
IO
N
/2
/2
FO
R C
O N S
TR
U C
TI
O
N
B
ID
M
AT
C H
LI
N
E, R
E:
C
2.
FO
R
C O
N T.
KEY MAP
MATCHLINE, RE: C2.2 FOR CONT.
METAL BLDG.
METAL
BLDG.
ABANDONED
WELL TO REMAIN
COOP ROAD (ROAD 8 S)
0.2 2%
0.2 2%
0.2 2%
40.22FL
40.09
38.98
ME
ME
ME
ME
30' DRAINAGE EASEMENT
REC. #_________________
LOT 3LOT 2LOT 1
TRACT 9TRACT 10
40.15FL
40.34FL
40.34FL
S O
U
TH
G R
A D
IN
G
P
LA
N
C2.2
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
TE
N o.
D
ES
C R
IP
TI
O
N
3-
2-
FA
X:
3-
2-
W .H
O W
A R
D P
L
C ol or ad o D ep ar tm en t o f T ra ns po rta tio n
P ho ne
D E
N
VE
R , C
O
BMC
03/21/2025
7-
A
LA
M O
S A
F A
C
IL
IT
Y
G R
A D
IN
G
D
R A
IN
A
G E
W E
S T
A
VE
A
LA
M
O S
A , C
O
DRAWN BY: CDB
D E
P A
R T
M E
N T
O F
T R
A N
S P
O R
T A
T
IO
N
/2
/2
FO
R C
O N S
TR
U C
TI
O
N
B
ID
MATCHLINE, RE: C1.2 FOR CONT.
C3.0
W
M P
C O
VE
R
S H
E E
T
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
TE
N o.
D
ES
C R
IP
TI
O
N
3-
2-
FA
X:
3-
2-
W .H
O W
A R
D P
L
C ol or ad o D ep ar tm en t o f T ra ns po rta tio n
P ho ne
D E
N
VE
R , C
O
BMC
03/21/2025
7-
A
LA
M O
S A
F A
C
IL
IT
Y
G R
A D
IN
G
D
R A
IN
A
G E
W E
S T
A
VE
A
LA
M
O S
A , C
O
DRAWN BY: CDB
D E
P A
R T
M E
N T
O F
T R
A N
S P
O R
T A
T
IO
N
/2
/2
FO
R C
O N S
TR
U C
TI
O
N
B
ID
1. THE CONTRACTOR IS RESPONSIBLE FOR OBTAINING ALL REQUIRED PERMITS AND IMPLEMENTING AND MAINTAINING EROSION AND SEDIMENT CONTROL MEASURES AT ALL TIMES DURING CONSTRUCTION TO PREVENT DAMAGING FLOWS ON THE SITE AND IN THE WATERSHED BELOW THE SITE. CONTROL SYSTEMS SHALL BE INSTALLED PRIOR TO START OF CONSTRUCTION. CONTROL SYSTEMS SHALL INCLUDE GRAVEL
BAG ROCK SOCKS, SILT FENCES AND INLET PROTECTION DEVICES.
2. THE CONTRACTOR SHALL PROVIDE ANY ADDITIONAL DUST ABATEMENT AND EROSION CONTROL MEASURES AS SPECIFIED BY THE SWMP.
3. THE CONTRACTOR SHALL PREVENT SEDIMENT, DEBRIS AND ALL OTHER POLLUTANTS FROM LEAVING THE SITE DURING ALL DEMOLITION, EXCAVATION, TRENCHING, GRADING OR OTHER CONSTRUCTION OPERATIONS THAT ARE PART OF THIS PROJECT. THE CONTRACTOR SHALL BE HELD RESPONSIBLE FOR REMEDIATION OF ANY ADVERSE IMPACTS TO ADJACENT WATERWAYS, WETLANDS, ETC., RESULTING FROM WORK DONE
AS PART OF THIS PROJECT.
4. THE CONTRACTOR SHALL INSURE THAT ALL LOADS OF CUT AND FILL MATERIAL IMPORTED TO OR EXPORTED FROM THE SITE SHALL BE PROPERLY COVERED TO PREVENT LOSS OF THE MATERIAL DURING TRANSPORT ON PUBLIC ROADS.
5. APPROVED EROSION AND SEDIMENT CONTROL “BEST MANAGEMENT PRACTICES” (BMP’S) SHALL BE MAINTAINED AND KEPT IN GOOD REPAIR FOR THE DURATION OF THE PROJECT. AT A MINIMUM, THE CONTRACTOR OR THEIR SWMP ADMINISTRATOR SHALL INSPECT ALL BMPS WEEKLY AND AFTER SIGNIFICANT PRECIPITATION EVENTS. ALL NECESSARY MAINTENANCE AND REPAIRS SHALL BE COMPLETED WITHIN 48 HOURS OF DISCOVERY. ACCUMULATED SEDIMENT AND DEBRIS SHALL BE REMOVED FROM A BMP WHEN THE SEDIMENT LEVEL REACHES ONE HALF THE HEIGHT OF THE BMP OR, AT ANY TIME THAT SEDIMENT OF DEBRIS ADVERSELY IMPACT THE FUNCTIONING OF THE BMP.
6. THE CONTRACTOR SHALL PROTECT ALL STORM SEWER FACILITIES ADJACENT TO ANY LOCATION WHERE PAVEMENT SAW CUTTING OPERATIONS ARE TO TAKE PLACE. THE CONTRACTOR SHALL REMOVE AND PROPERLY DISPOSE OF ALL WASTE PRODUCTS GENERATED BY THE CUTTING OPERATIONS ON A DAILY BASIS. THE DISCHARGE OF ANY WATER CONTAMINATED BY WASTE PRODUCTS FROM CUTTING OPERATIONS
TO THE DRAINAGE SYSTEM IS PROHIBITED.
7. PAVED SURFACES ADJACENT TO THE SITE SHALL BE SWEPT IN A TIMELY MANNER WHEN SEDIMENT AND OTHER MATERIALS ARE TRACKED OR DISCHARGED ONTO THEM. EITHER SWEEPING BY HAND OR USE OF STREET SWEEPERS IS ACCEPTABLE. STREET SWEEPERS USING WATER WHILE SWEEPING IS PREFERRED TO MINIMIZE DUST. FLUSHING OFF PAVED SURFACES WITH WATER IS PROHIBITED.
8. EROSION/SEDIMENT CONTROL DEVICES PER SWMP PLANS SHALL BE PLACED AS CONSTRUCTION SEQUENCING AND ACCESS DICTATES.
9. ALL INLETS WITHIN THE CONSTRUCTION AREA TO BE PROVIDED INLET PROTECTION DURING CONSTRUCTION.
GRADING AND EROSION CONTROL NOTES
0.43%
41.5
41.5
41.5
ME
PP PP
PP
PP
PP
CO
PP
PP
PP
G
G
US
METAL BUILDING
G
G
WV
WV
WV
GUY
WWV
CO
CO CO
CO
7545 7545
46 46
FH
FH
FH
WV
G
46.59
46.22 46.13
45.95
46.12 46.18
45.37
.78
.78
45.66
.91
44.89
45.04
45.46
45.43
45.52
45.99
45.23
44.75
45.53
44.92
44.98
44.46
44.72
3.58%
3.92%
0.61%
5.1 4%
4.5 9%
4.1 9%
1.97%
1.84%
0.87%
2.2 4%
2.1 7%
1.0 7%
1.2 2%
2.3 6%
1.9 5%
2.4 1%
1.06%
0.7 1%
1.74%
2.8 8%
3.8 1%
5.7 2%
5.6 5%
2.32%
1.11%
2.6 0% 1.8
2% 2.6
1% 1.3 5%
1.5 9%
0.4 4%
0.4%
0.3 3%
0.6 0%
0.24%
0.8%
0.5 0%
0.6%0.6%
0.22%
0.2 2%
0.2 2%
0.2 2%
0.4%
0.4%
30' DRAINAGE EASEMENT
REC. #_________________
TRACT 8
LOT 7LOT 6LOT 5LOT 4LOT 3LOT 2LOT 1
TRACT 9TRACT 10
SOUTH LINE OF SECTION 9 S 89°54' W
25' DRAINAGE EASEMENT
REC. #_________________
1.5 5%
0.4%
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
TE
N o.
D
ES
C R
IP
TI
O
N
3-
2-
FA
X:
3-
2-
W .H
O W
A R
D P
L
C ol or ad o D ep ar tm en t o f T ra ns po rta tio n
P ho ne
D E
N
VE
R , C
O
BMC
03/21/2025
7-
A
LA
M O
S A
F A
C
IL
IT
Y
G R
A D
IN
G
D
R A
IN
A
G E
W E
S T
A
VE
A
LA
M
O S
A , C
O
DRAWN BY: CDB
D E
P A
R T
M E
N T
O F
T R
A N
S P
O R
T A
T
IO
N
/2
/2
FO
R C
O N S
TR
U C
TI
O
N
B
ID
C3.1
IN
IT
IA
L
S W
M P
P
LA
N
PP PP
PP
PP
PP
CO
PP
PP
PP
G
G
US
G
G
WV
WV
WV
GUY
WWV
CO
CO CO
CO
7545 7545
46 46
FH
FH
FH
WV
G
46.59
46.22 46.13
45.95
46.12 46.18
45.37
.78
.78
45.66
.91
44.89
45.04
45.46
45.43
45.52
45.99
45.23
44.75
45.53
44.92
44.98
44.46
44.72
3.58%
3.92%
0.61%
5.1 4%
4.5 9%
4.1 9%
1.97%
1.84%
0.87%
2.2 4%
2.1 7%
1.0 7%
1.2 2%
2.3 6%
1.9 5%
2.4 1%
1.06%
0.7 1%
1.74%
2.8 8%
3.8 1%
5.7 2%
5.6 5%
2.32%
1.11%
2.6 0% 1.8
2% 2.6
1% 1.3 5%
1.5 9%
0.4 4%
0.4%
0.3 3%
0.6 0%
0.24%
0.8%
0.5 0%
0.6%0.6%
0.22%
0.2 2%
0.2 2%
0.2 2%
0.4%
0.4%
30' DRAINAGE EASEMENT
REC. #_________________
TRACT 8
LOT 7LOT 6LOT 5LOT 4LOT 3LOT 2LOT 1
TRACT 9TRACT 10
SOUTH LINE OF SECTION 9 S 89°54' W
25' DRAINAGE EASEMENT
REC. #_________________
1.5 5%
0.4%
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
TE
N o.
D
ES
C R
IP
TI
O
N
3-
2-
FA
X:
3-
2-
W .H
O W
A R
D P
L
C ol or ad o D ep ar tm en t o f T ra ns po rta tio n
P ho ne
D E
N
VE
R , C
O
BMC
03/21/2025
7-
A
LA
M O
S A
F A
C
IL
IT
Y
G R
A D
IN
G
D
R A
IN
A
G E
W E
S T
A
VE
A
LA
M
O S
A , C
O
DRAWN BY: CDB
D E
P A
R T
M E
N T
O F
T R
A N
S P
O R
T A
T
IO
N
/2
/2
FO
R C
O N S
TR
U C
TI
O
N
B
ID
C3.2
IN
TE
R
IM
S W
M P
P
PP PP
PP
PP
PP
CO
PP
PP
PP
G
G
US
G
G
WV
WV
WV
GUY
WWV
CO
CO CO
CO
7545 7545
46 46
FH
FH
FH
WV
G
46.59
46.22 46.13
45.95
46.12 46.18
45.37
.78
.78
45.66
.91
44.89
45.04
45.46
45.43
45.52
45.99
45.23
44.75
45.53
44.92
44.98
44.46
44.72
3.58%
3.92%
0.61%
5.1 4%
4.5 9%
4.1 9%
1.97%
1.84%
0.87%
2.2 4%
2.1 7%
1.0 7%
1.2 2%
2.3 6%
1.9 5%
2.4 1%
1.06%
0.7 1%
1.74%
2.8 8%
3.8 1%
5.7 2%
5.6 5%
2.32%
1.11%
2.6 0% 1.8
2% 2.6
1% 1.3 5%
1.5 9%
0.4 4%
0.4%
0.3 3%
0.6 0%
0.24%
0.8%
0.5 0%
0.6%0.6%
0.22%
0.2 2%
0.2 2%
0.2 2%
0.4%
0.4%
30' DRAINAGE EASEMENT
REC. #_________________
TRACT 8
LOT 7LOT 6LOT 5LOT 4LOT 3LOT 2LOT 1
TRACT 9TRACT 10
SOUTH LINE OF SECTION 9 S 89°54' W
25' DRAINAGE EASEMENT
REC. #_________________
1.5 5%
0.4%
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
TE
N o.
D
ES
C R
IP
TI
O
N
3-
2-
FA
X:
3-
2-
W .H
O W
A R
D P
L
C ol or ad o D ep ar tm en t o f T ra ns po rta tio n
P ho ne
D E
N
VE
R , C
O
BMC
03/21/2025
7-
A
LA
M O
S A
F A
C
IL
IT
Y
G R
A D
IN
G
D
R A
IN
A
G E
W E
S T
A
VE
A
LA
M
O S
A , C
O
DRAWN BY: CDB
D E
P A
R T
M E
N T
O F
T R
A N
S P
O R
T A
T
IO
N
/2
/2
FO
R C
O N S
TR
U C
TI
O
N
B
ID
C3.3
FI
N
A L
S W
M P
P
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
TE
N o.
D
ES
C R
IP
TI
O
N
3-
2-
FA
X:
3-
2-
W .H
O W
A R
D P
L
C ol or ad o D ep ar tm en t o f T ra ns po rta tio n
P ho ne
D E
N
VE
R , C
O
BMC
03/21/2025
7-
A
LA
M O
S A
F A
C
IL
IT
Y
G R
A D
IN
G
D
R A
IN
A
G E
W E
S T
A
VE
A
LA
M
O S
A , C
O
DRAWN BY: CDB
D E
P A
R T
M E
N T
O F
T R
A N
S P
O R
T A
T
IO
N
/2
/2
FO
R C
O N S
TR
U C
TI
O
N
B
ID
C3.4
S W
M P
D E
TA
IL
S (1
O F
2)
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
TE
N o.
D
ES
C R
IP
TI
O
N
3-
2-
FA
X:
3-
2-
W .H
O W
A R
D P
L
C ol or ad o D ep ar tm en t o f T ra ns po rta tio n
P ho ne
D E
N
VE
R , C
O
BMC
03/21/2025
7-
A
LA
M O
S A
F A
C
IL
IT
Y
G R
A D
IN
G
D
R A
IN
A
G E
W E
S T
A
VE
A
LA
M
O S
A , C
O
DRAWN BY: CDB
D E
P A
R T
M E
N T
O F
T R
A N
S P
O R
T A
T
IO
N
/2
/2
FO
R C
O N S
TR
U C
TI
O
N
B
ID
C3.5
S W
M P
D E
TA
IL
S (2
O F
2)
2"
8"R
8"
6"
COVER
6"
12" 12"12"
8" PVC
INVERT, RE: PLAN
6"
8" PVC
6"
COVER
6"
FINISHED GRADE
CUT END OF PIPE
FLUSH WITH CONC.
& ATTACH FRESNO
SERIES 5900
DRAINAGE FLAP
GATE ON
DOWNSTREAM SIDE
OF CULVERT
FINISHED GRADE
UNDISTURBED EARTH
A
A
FRONT VIEW
#4 REBAR @ 12" O.C.
#4 REBAR
2" COVER
#4 REBAR
#4 REBAR
3" COVER TYP. AGAINST
EARTH
SECTION A-A
12"
12" CONCRETE HEADWALL DETAIL
NO SCALE
6"
8"
NOTES:
3. SHOULD THE TRENCH BE EXCAVATED WIDER THAN ALLOWED, A CONCRETE CRADLE SHALL BE PLACED
WITH 2500 P.S.I. CONCRETE FROM THE TRENCH BOTTOM TO PIPE SPRINGLINE.
2. TRENCH WIDTH SHALL NOT BE MORE THAN 16" NOR LESS THAN 12" WIDER THAN THE LARGEST OUTSIDE
DIAMETER OF THE PIPE.
1. TRENCH TO BE BRACED OR SHEETED AS NECESSARY FOR THE SAFETY OF THE WORKMEN AND PROTECTION OF OTHER UTILITIES IN ACCORDANCE WITH APPLICABLE LOCAL, STATE AND FEDERAL SAFETY REGULATIONS.
6"
WIDTH
SEE NOTE 3
BACKFILL
WITH
FLOWFILL
CLASS 6 AGGREGATE
BASECOURSE
PIPE LINE
TYPICAL STORM DRAIN
TRENCH SECTION
NO SCALE
2"1
8"R
SCALE 1/2"=1'-0"
A
A
SECTION VIEW
SECTION A-A
NOT TO SCALE
6"
4"-6"
CHECKED BY:
DATE:
CDOT PROJECT NO.
DRAWING NUMBER
D A
TE
N o.
D
ES
C R
IP
TI
O
N
3-
2-
FA
X:
3-
2-
W .H
O W
A R
D P
L
C ol or ad o D ep ar tm en t o f T ra ns po rta tio n
P ho ne
D E
N
VE
R , C
O
BMC
03/21/2025
7-
A
LA
M O
S A
F A
C
IL
IT
Y
G R
A D
IN
G
D
R A
IN
A
G E
W E
S T
A
VE
A
LA
M
O S
A , C
O
DRAWN BY: CDB
D E
P A
R T
M E
N T
O F
T R
A N
S P
O R
T A
T
IO
N
/2
/2
FO
R C
O N S
TR
U C
TI
O
N
B
ID
C4.0
S
IT
E D
E
TA
IL
| Sheets and Views |
| 1 C00 Civil Cover Sheet - C00 |
| 2 C0.1Site Survey - Layout1 |
| 3 C0.2-0.3 Demo Plans - C0.3 West |
| 4 C0.2-0.3 Demo Plans - C0.4 South |
| 5 C0.2-0.3 Demo Plans - C0.2 East |
| 6 C1.0 Overall Site Plan - Layout1 |
| 9 C1.1-1.4 Site Plans - C1.1 East |
| 7 C1.1-1.4 Site Plans - C1.2 West |
| 8 C1.1-1.4 Site Plans - C1.3 SOUTH |
| 10 C1.6 HC Plan - Layout1 |
| 11 C2.0 -2.1 Grading Plans - East Grading Plan |
| 12 C2.0 -2.1 Grading Plans - West Grading Plan |
| 13 C2.0 -2.1 Grading Plans - South Grading Plan |
| 14 C3.0 SWMP Cover Sheet - C3.0 |
| 15 C3.1 Initial SWMP Plan - C3.1 Initial SWMP |
| 16 C3.2 Interim SWMP Plan - C3.2 Interim SWMP |
| 17 C3.3 Final SWMP Plan - C3.3 Final SWMP |
| 18 C3.4 - 3.5 SWMP Details - C3.4 SWMP Details (1 of 2) |
| 19 C3.4 - 3.5 SWMP Details - C3.5 SWMP Details (2 of 2) |
| 20 C4.0 Site Details - C4.0 SIte Details |
File details come from the government source that posted it. Updated .