Z-8696 Map 6STORMWATER DETENTION CALCS
TOTAL AREA (A) = 0.51 ACRES (+/-)
AREA (PAVEMENT) = 0.38 ACRES (+/-)
AREA (LANDSCAPED/TURFED) = 0.13 ACRES (+/-)
C undeveloped = 0.61
C developed = 0.85 (weighted "C' for combined paved and landscaped areas)
Q undeveloped = CIA = (0.61)(7.5 in/hr)(0.51) = 2.33 cfs
Q developed = CIA = (0.85)(7.5 in/hr)(0.51) = 3.25 cfs
Q difference = 0.92 cfs
V required detention = Q difference A tc 60 = (0.92)(0.51)(11)(60) = 309.67 cubic feet required
V provided detention = 2007.98 cubic feet
NOTE: AN WORKCIN TIHE PIUBLIIC RI HN HALL T-OF WAY PRIOR1-590-7465) FOR
NSPECTION
OFTO PLACEMENT
OF CONCRETE OR ASPHALT.
PROVIDE NEW 30' WIDE ELECTRONIC
PROVIDE NEW 5' WIDE CONCRETE SIDEWALK CONTROLLED WROUGHT IRON SLIDING
ALONG BACK OF NEW CURB AND GUTTER GATE ACROSS EACH ENTRANCE
PROVIDE NEW 10' WIDE CONCRETE SIDEWALK
TO TIE NEW PARKING LOT TO EXISTING COVERED
PROVIDE CLEAN/NEAT CUT INTO ENTRANCE WALK INTO HEADQUARTERS BUILDING LANDSCAPED AREA BETWEEN EXISTING
EXISTING ASPHALT ALONG EDGE SIDEWALK AND NEW CONCRETE CURB
6" DRIVE O CONSTRUCT NEW CONSTRUCT NEW WROUGHT IRON OR ALUMINUM - AND GUTTER (23) SHRUBS AND (4) TREES
A THICK CONCRETE ENTRANCE FENCE ACROSS FRONT OF PROPERTY AND ALONG
APRON EXISTING CHAIN LINK FENCE AND ABUT CORNER
OF EXISTING BUILDING
-
---
West 401h SIrcel
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1336. 50 GUTTER
NE Cooler
SE / SE Sec.14
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SYCAMORE - REMOVE ENTIRE
ROOT SYSTEM AND BACKFILL
W/SELECT FILL /� / fuy Wi es
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NEW CON
GUTTER -
ENTIRE PI
PARKING
STORMWATER DETENTION
AREA- VOLUMNE PROVIDED
= 1800 C.F. (+/-)
PROVIDE 2' WIDE CURB CUT
STORM DETENTION RELEASE
f / / W/6" THICK x 4' WIDE x 8' LONG
/ RIPRAP ON FILTER FABRIC
/ RELOCATE EXISTING GUY WIRES
CONTRACTOR TO COORDINATE
WITH ELECTRICAL COMPANY
SCALE: 1"=20'-0"
NOTE: 20 10 0 20 40FT
1. SEE NOTES ON SHEET C1.02 FOR SPECIFIC NOTES REGARDING EXCAVATION AND DEMOLITION.
2. CONTRACTOR SHALL VISIT SITE AND CONDUCT THOROUGH SITE INVESTIGATION WITH DRAWINGS SCALE: 1"= 20'
PRIOR TO BIDDING THE SITE PACKAGE.
3. CARE SHALL BE TAKE TO PRESERVE ALL SET SURVEY MARKERS/BENCHMARKS ON SITE DURING
DEMOLITION ACTIVITIES.
N
GENERAL CONSTRUCTION NOTES
UTILITIES
A.
The contractor will be held solely responsible for damage
of
during the construction of this
rriSaid anyconstruction
occurring to an
E.
Contractor is to remove and dispose of all debris, rubbish
P
SANITARY SEWER:
LITTLE ROCK WASTEWATER
property
roper shall take all
project. p
and other materials resulting from previous and current
demolition operations. Disposal will be in accordance
501-688-1452 (ENGINEERING)
.y
cautions to prevent property damage.
with all local, state and/or federal regulations governing
501-223-1509 (EMERGENCY)
B.
accordance with generally accepted construction
such operations.
WATER:
CENTRAL ARKANSAS WATER
practices, the contractor wilt be solely and completely
p
responsible for conditions of the job site, including safety
F.
Prior to installation of any utilities, the contractor is
to excavate, verify, and calculate all crossings and
221 EAST CAPITOL
LITTLE ROCK, ARKANSAS
of all persons and property during performance of the
work. This requirement will apply continuously and not
inform the any and all Utilities of any conflicts prior
501-372-5161
be limited to normal working hours.
to construction.
ELECTRIC:
The duty of Central Arkansas Water to conduct construction
G.
Construction shall not start on any water utility tie-ins until
approval is by Central Arkansas Water Utility. Said
ENTERGY ARKANSAS, INC.
inspection or review of the contractor's performance
given
hydrant,
425 WEST CAPITOL AVENUE
is not an Inspection or review of the adequacy of the
contractor's safety measures in, on, or near the construction
contractor shall not operate any valve, or water
utility appurtenance nor shall he attach to or tap any
LITTLE ROCK. ARKANSAS
501-377-4000
site.
water utility main without approval. The contractor shall
bear the cost and consequence of any disruption of
NATURAL GAS:
C.
All water and sewer improvements shall be constructed
utility operation caused by construction.
CENTERPOINT ENERGY
in accordance with the latest revision to the Central
Arkansas Water and City of Little Rock (Sanitary Sewer)
H.
Fiber optic cables on and/or adjacent to this site
400 WEST CAPITOL #600
LITTLE ROCK, ARKANSAS
Standard Specifications (respectively).
(Lot 4) were not located by the survey and are
888-498-0409
not shown. It is the responsibility of the contractor
D.
The contractor is specifically cautioned that the location
to locate any fiber optic cables associated with this
and/or elevation of existing utilities as shown on these
site and take all necessary and required precautions
plans is based on records of the various utility companies
to protect any existing fiber optic cables. Contractors
and, where possible, measurements taken in the field.
shall coordinate all efforts with owner of fiber
The information is not to be relied on as being exact
optic cables or their designated represenative.
or complete. The contractor must call the appropriate
utility company at least 48 hours before any excavati(,n
to request exact field location of utilities. It shall be
J.
The Contractor is responsible for contacting "OneCall"
the responsibility of the contractor to relocate all existing
service prior to mark all utilities prior to an demolition,
P P Y
utilities which conflict with the proposed improvements
earthwork, or utility work on the site.
shown on the plans.
CURB AND,
.L ALONG
ER OF NEW
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REMOVE EXISTING 30" DIA --�
SYCAMORE - REMOVE ENTIRE
ROOT SYSTEM AND BACKFILL
WISELECT FILL
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9' WIDE LANDSCAPE BUFFEJR BETWEEN EXISTING
FENCE AND EDGE OF NEW rARKING LOT CURB
AND GUTTER
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NE Corner
SE X SE /. Sec.14
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PROVIDE INTERNAL LANDSCAPED a �IyLT�{(y 1
ISLAND 685 S.F. W/ 4 TREES - 2 SS t-1 {r/' 1
( ) ( ( ) N 86S336" W ' �S Rebar
RED MAPLE AND (2) �ILLOW OAK Lid 334,90 Power Pole 38
PROVIDE EDGEING ALONG ENTIRE
PERIMETER OF ISLAND TO CONTAIN
MULCH
PROVIDE INTERNAL/CORNER LANDSCAPED
ISLAND (380 S.F.)
9' WIDE (MIN) LANDSCAPE BUFFER BETWEEN EXISTING
FENCE AND EDGE OF NEW PARKING LOT CURB
AND GUTTER
L-PROVIDE INTERNAL/CORNER LANDSCAPED COI N CTING WROUGHT 6' HI WOOD
PRIVACY FENCE TO
ISLAND (340 S.F.)
ENCE
EXISTING 30" DIAMETER RED OAK -
TREE TO REMAIN
SCALE: 1 "=20'-0"
1. ALL LANDSCAPING SHALL COMPLY WITH CITY OF LITTLE ROCK LANDSCAPING ORDINANCE (Sec. 15-100) 20 10 0 20 40FT
AND ZONING REGULATIONS. III
2. ALL LANDSCAPED AREAS OF THE SITE SHALL BE CONSTRUCTED WITH AN AUTOMATIC SCALE 1"= 20'
SPRINKLER IRRIGATION SYSTEM AS PART OF THE LANDSCAPING SUBCONTRACT.
3. ALL TREES SITE PERIMETER TREES SHALL PROVIDE AN (8) EIGHT FOOT HEIGHT CLIMB LANDSCAPING CALCULATIONS
CLEARANCE EXCEPT MULTI -TRUNK SPECIES, WHICH SHALL BE INSTALLED AND MAINTAINED
Reber
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AS NOT TO CREATE OBSTRUCTIONS TO VEHICULAR OR PEDESTRIAN TRAFFIC. TOTAL INTERIOR PAVED AREA = 15,960 S.F. (+/-)
4. GENERAL CONTRACTOR SHALL PROVIDE SCHEDULE 40 PVC SLEEVING 4" OR 6" UNDER ALL REQUIRED INTERIOR LANDSCAPING = (8%) x 15,960 S.F. = 1276.80 S_F.
DRIVES AND PAVED AREAS FOR IRRIGATION PIPING. SLEEVING SHALL BE BURIED A MINIMUM
OF 18" BELOW GRADE AND THE ENDS OF THE SLEEVES CLEARLY MARKED BY THE GENERAL TOTAL INTERIOR LANDSCAPING PROVIDED = 1405 S.F. 340 SW CORNER,
CONTRACTOR AND SHALL EXTEND OUT A MINIMUM OF 18" PAST ANY CURB OR PAVING.
380 SE CORNER, 685 S.F. INTERIOR ISLAND)
5. PROVIDE MULCH AND EDGING IN ISLANDS AND AROUND BASE OF ALL LANDSCAPED AREAS
AROUND NEW PARKING LOT PERIMETER.
LANDSCAPING LEGEND
ALTERNATING RED MAPLE (2" MIN
CALIPER) AND FOSTER HOLLY (2" MIN
CALIPER)
(12 TOTAL)
WILLOW OAK (2" MIN
CALIPER)
(6 TOTAL)
ALTERNATING DWARF YAUPN
HOLLY (3 GALLON) AND
COMPACT BURNING BUSH (5
GALLON) - 18" MINIMUM HEIGHT
(69 TOTAL)
NOTE: 30 FEET FROM CENTER OF 40TH STREET RIGHT-OF-WAY
TO BE DEDICATED TO CITY OF LITTLE ROCK PRIOR TO COMPLETION
OF PARKING LOT CONSTRUCTION FOR ISSUANCE OF CERTIFICATE
OF OCCUPANCY. DEDICATION MUST BE PROVIDED TO PUBLIC WORKS,
CIVIL ENGINEERING.
\,II IIIIIII/I//
PEE OF AUp''',
PHILLIP LEWIS
U : ENGINEERING, INC. z
No. 566
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REVISIONS:
DATE: MAY 2014
SHEET:
C1,2