817 Arnold Drive, Ste. 50
Martinez, CA 94553
Ph: (925) 476-8499
www.apexce.net
[email protected]
NO
BY
DATE
REVISIONS
NO.
JV
STAFF
JV
DESIGN:
DRAWN:
CHECKED:
22084
PROJECT #:
"REDWOOD VINES" - TENTATIVE MAP - 02-27-2023
VICINITY MAP
NOT TO SCALE
OWNER/DEVELOPER
STEVENS FERRONE & BAILEY
1600 WILLOW PASS COURT
CONCORD, CA 94520
(925) 688-1001
SOILS ENGINEER
CIVIL ENGINEER
APEX CIVIL ENGINEERING & LAND SURVEYING
817 ARNOLD DRIVE, SUITE 50
MARTINEZ, CA 94553
(925) 476-8499
DESCRIPTION
2 3
SHEET No.
1 TITLE SHEET
SHEET INDEX
TOPOGRAPHIC SURVEY & DEMOLITION PLAN
SECTIONS & DETAILS
PRELIMINARY C.3 STORM WATER CONTROL PLAN
MONTAIR ASSOCIATES, LLC
12885 ALCOSTA BLVD., SUITE A
SAN RAMON, CA 94583
(925)
328-1000
FACILITIES
GENERAL
ABBREVIATIONS
LEGEND
5 PRELIMINARY GRADING, DRAINAGE & UTILITY PLAN
4 REDWOOD ROAD
RUSTON LANE (PUBLIC)
RUSTON LANE
(EXISTING)
(EXISTING)
BASIS OF BEARINGS
BENCHMARK
ATTACHMENT 2
817 Arnold Drive, Ste. 50
Martinez, CA 94553
Ph: (925) 476-8499
www.apexce.net
[email protected]
NO
BY
DATE
REVISIONS
NO.
JV
STAFF
JV
DESIGN:
DRAWN:
CHECKED:
22084
PROJECT #:
GENERAL DEMOLITION NOTES:
DEMOLITION KEY LEGEND
LEGEND
REDWOOD ROAD
(EXISTING)
RUSTON LANE
(EXISTING)
ATTACHMENT 2
817 Arnold Drive, Ste. 50
Martinez, CA 94553
Ph: (925) 476-8499
www.apexce.net
[email protected]
NO
BY
DATE
REVISIONS
NO.
JV
STAFF
JV
DESIGN:
DRAWN:
CHECKED:
22084
PROJECT #:
TRANSITION NEW ASPHALT
TO EX. PAVEMENT
NOT TO SCALE
TYPICAL LOT GRADING & UTILITIES
NOT TO SCALE
BIO-RETENTION AREA (TYP)
NOT TO SCALE
TYPICAL 56' STREET SECTION
RUSTON LANE (PUBLIC)
NOT TO SCALE
SECTION E-E
NOT TO SCALE
SECTION F-F
NOT TO SCALE
SECTION D-D
NOT TO SCALE
SECTION A-A
NOT TO SCALE
SECTION B-B
NOT TO SCALE
SECTION C-C
NOT TO SCALE
ATTACHMENT 2
817 Arnold Drive, Ste. 50
Martinez, CA 94553
Ph: (925) 476-8499
www.apexce.net
[email protected]
NO
BY
DATE
REVISIONS
NO.
JV
STAFF
JV
DESIGN:
DRAWN:
CHECKED:
22084
PROJECT #:
SECTIONS NOTE:
REFER TO SHEET 3
FOR ALL SECTIONS
AND DETAILS
STRUCTURE #
GRATE/RIM
ELEVATION
FLOW LINE
ELEVATION
15" FL 107.09 IN
EX.15" FL 107.09 THRU
15" 107.96 IN
SDMH-2
15" 107.96 OUT
SD/SS SUMMARY
RIM 111.69±
8" FL 105.31 IN
EX. SSMH
EX. 8" FL 105.21± OUT
SSMH-1
8" FL 106.81 OUT
4" FL 108.62 IN
CB-1
15" FL 108.06 OUT
G 110.70
SDMH-1
RIM 111.36±
RIM 110.11±
NOTES
SSRI-1
8" FL 107.37 OUT
RIM 112.73±
RIM 113.32±
REDWOOD ROAD
RUSTON LANE
(EXISTING)
(EXISTING)
RUSTON LANE (PUBLIC)
MATCHLINE (SEE ABOVE)
MATCHLINE (SEE BELOW)
RUSTON LANE
(EXISTING)
KEY LEGEND
ATTACHMENT 2
817 Arnold Drive, Ste. 50
Martinez, CA 94553
Ph: (925) 476-8499
www.apexce.net
[email protected]
NO
BY
DATE
REVISIONS
NO.
JV
STAFF
JV
DESIGN:
DRAWN:
CHECKED:
22084
PROJECT #:
PROJECT C.3 SUMMARY
THE PROJECT IS DESIGNED TO MAINTAIN THE EXISTING DRAINAGE PATTERNS AND THEIR EQUIVALENT AREAS. THE EXISTING
CONDITION HAS THE MAJORITY OF THE SITE (87%) DRAINING NORTH
TO THE EXISTING RUSTON LANE AND ULTIMATELY INTO THE
SALVADOR BASIN. THE REMAINING 13% DRAINS SOUTH TO
REDWOOD ROAD AND ULTIMATELY TO THE NAPA RIVER.
THE SAME 87% / 13% RATIO TO EACH DRAINAGE AREA IS
MAINTAINED IN THE PROPOSED DESIGN AS WELL.
THE NORTHERN DRAINAGE AREA (SOUTH OF THE RUSTON LANE
CENTERLINE) WILL DRAIN TO BIO-RETENTION AREA BR-1 FOR
TREATMENT AND DETENTION. OVERFLOW FROM THIS BASIN WILL
BE DRAINED IN A NEW STORM DRAIN LINE WHICH WILL CONNECT
TO THE EXISTING STORM DRAIN SYSTEM TO THE NORTH IN THE EXISTING RUSTON LANE. THE PORTION NORTH OF THE RUSTON
LANE CENTERLINE WILL BE TEMPORARILY BE TREATED IN THE
ADJACENT LANDSCAPING AND DRAINS TO THE EXISTING RUSTON
LANE EASTERN CURB AND GUTTER.
THE REMAINING AREA (PORTION OF LOT 6) WILL BE TREATED IN SELF-RETAINING LANDSCAPE AREAS ON LOT 6. OVERFLOW
DRAINAGE WILL THEN BE DIRECTED OUT TO REDWOOD ROAD CURB AND GUTTER VIA THE LOT 6 AREA DRAIN SYSTEM AND THRU-CURB DRAINS.
PROJECT NAME/NUMBER
PROJECT LOCATION
NAME OF DEVELOPER
PROJECT WATERSHED
REDWOOD VINES
1.56 ACRES (67,831 SF)
PROJECT TYPE AND
DESCRIPTION
TOTAL PROJECT SITE
AREA (ACRES)
TOTAL NEW IMPERVIOUS
SURFACE AREA (SQ. FT.)
TOTAL REPLACED IMPERVIOUS
SURFACE AREA
TOTAL PRE-PROJECT
IMPERVIOUS SURFACE AREA
TOTAL POST-PROJECT
IMPERVIOUS SURFACE AREA
2550 REDWOOD ROAD
NAPA, CA
6 LOTS (SINGLE FAMILY RESIDENTIAL)
24,740 SF
9,293 SF
14,063 SF
34,033 SF
RUNOFF REDUCTION
MEASURES SELECTED
1. DISPERSE RUNOFF TO
VEGETATED AREA
2. PERVIOUS PAVEMENT
(PAVERS)
3. CISTERNS OR RAIN BARRELS
4. BIO-RETENTION FACILITY
OR PLANTER BOX
MONTAIR ASSOCIATES, L.L.C.
SALVADOR CHANNEL & LOWER NAPA RIVER
PROJECT DATA FORM
DRAINAGE MANAGEMENT AREAS (DMA):
LANDSCAPE AREA
NEW IMPERVIOUS AREA
(ROOFTOP)
NEW IMPERVIOUS AREA
(PAVEMENT/CONCRETE)
STORMWATER CONTROL PLAN LEGEND:
P / C
L
BIO-RETENTION AREA
BMP TRIBUTARY BOUNDARY:
BR-1
R
ABBREVIATIONS
BASMAA STORMWATER COMPLIANCE
ROOFS:
14,942 SF
ROADS, DRIVEWAYS AND WALKS: 19,091 SF
BIO-RETENTION AREAS:
1,342 SF
LANDSCAPE AREAS:
32,456 SF
67,831 SF
ON-SITE AREA BREAKDOWN
BR-1
C1
NO DUMPING
DRAINS TO RIVER
CURB MARKER
(CON STD DET SWQ-206)
D
R
A
I
N
S
T
O
R
I
V
E
R
N
O
D
U
M
P
I
N
G
REDWOOD ROAD
RUSTON LANE
(EXISTING)
(EXISTING)
RUSTON LANE (PUBLIC)
UNTREATED AREA
UT
UT
R1
R1
R1
R1
R1
R2
C1
C1
C1
C1
C1
P1
P1
P1
P3
P3
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L1
L2
L2
L2
L3
ATTACHMENT 2