HomeMy WebLinkAboutZ-8338 Map 1- CONSTRUCT CONCRETE /
I DRIVEWAY APRON WITH /
1 l HANDICAP RAMPS i g
TAP EXIST CURB INLET - A _- - -� -_ 4
IX FL- 2.73 CONSTRUCT
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IBM RCP X 40 LF (Rrs) / ---- Scale 1 " = 30 ft
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36" RCP % 86 LF (DE ` - - - - CONSTRUCT CONCRETE DUMPR PAD
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8" THICK 3500 PSI CONCRETE
#4 REBAR 0 6" D.C. EACHWAY
JUNCTIONCONx �- �� 4 SB-2
I STORMWATER DETENTION CALCULATIONS GENERAL SITE UTILITY CONSTRUCTION NOTES:
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FL-453.70 A 1. SEE ARCHITECTURAL DRAWINGS FOR DETAILS GRADING AT
IJU �X b �d / AREA - 3.51 Acres BUILDINGS, STEPS, WALKS, WALLS AND OTHER STRUCTURES.
1 FL-453:50 24" RCP % 59 LF !i, Average Slope - 10% 2. FINISH CONTOURS AND GRADES SHOWN ARE FOR FINISHED
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1 Undeveloped SURFACES, ALLOWANCES SHALL BE MADE FOR PAVEMENTS, SLABS,
- \ Runoff Coefficient 0.55 TOPSOIL, SOD, ETC. UNIFORM PLANES AND SURFACES SHALL BE
` - SHAPED BETWEEN FINISHED SPOT ELEVATIONS AND/OR FINISH CONTOURS
i ) Co Time of Concentration (min.) 10 SHOWN. MINIMUM PAVEMENT SLOPES SHALL BE 1%, MINIMUM FINISH
f i - / _CU 451 = - 25 Year Rainfall Intensity (in./hr.) 7.1 SLOPES ON GRASS OR SOD SURFACES SHALL BE 1%, MINIMUM
l 1 _ LONGITUDINAL CONCRETE CURB & GUTTER SLOPE SHALL BE 0.6%,
SPILLOUT CURB SHALL BE USED ON THE HIGH SIDE OF PAVEMENT AND
{ Building 30,600 sf ®U.92 28,152 AT DISCHARGE POINTS.
LOT 1 --- 9
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J Paved Areas 62,000 sf ®0 92 57,040 3. THE CONTRACTOR SHALL CONTROL EROSION ON THE SITE. ALL
Lawn & Landscaping 60,466 sf ®0.44 26,605 SLOPES SHALL BE FERTILIZED, SEEDED AND MULCHED (OR LANDSCAPED)
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j \ CON l - AS SOON AS POSSIBLE. THE CONTRACTOR SHALL FILE A NOTICE OF
JUN BOX / � 153,066 111,797 INTENT WITH THE ARKANSAS DPC&E. THE SITE SHALL
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4WO / „ ,> BE GRADED TO MAINTAIN POSITIVE DRAINAGE DURING CONSTRUCTION, Developed C Value = 111,797/153,066 = 0.73 WATER SHALL NOT BE ALLOWED TO POND.
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4. ALL AREAS TO BE CUT OR FILLED SHALL BE CLEARED AND
GRUBBED. THE MAXIMUM FILL SLOPE SHALL BE 3:1. ALL FILLS
Developed SHALL BE MADE IN 8" LIFTS AND COMPACTED, AT OPTIMUM MOISTURE
p a Runoff Coefficient 0.73 CONTENT TO 95% OF MODIFIED PROCTOR DENSITY 1 I ASTM D-1557), AS U ) DETERMINED BY IN -PLACE DENSITY TESTS. BORROW AND FILL Time of Concentration (min.) 5
/ \ MATERIAL SHALL BE SELECT CLAY SAND OR SANDY CLAY HAVING A
25 Year Rainfall Intensity (in./hr.) 8.5 LIQUID LIMIT LESS THAN 40 OR OTHER APPROVED FILL. FILL SOILS
CLASSIFYING AS SC OR GC ACCORDING TO THE UNIFIED SOILS
A CLASSIFICATION SYSTEM ARE CONSIDERED SUITABLE, SHALE MATERIAL
\ _ _ USED IN FILL SHALL BE COMPACTED AT 3% ABOVE OPTIMUM MOISTURE
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Differential Runoff Rate (R) - 0.73(8.5)-0.55(7.1) - 2.30 In./hr. CONTENT WITH A VIBRATORY SHEEPS FOOT COMPACTOR.
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\ Simplified Volume Formula 5. IHE CONIRACIUk SHALL C00RuiivA7E WITH EACH UTILITY UUMPANY
/ Volume Required = R x A x Tc x 60 PRIOR TO ANY EXCAVATION. ANY DAMAGE TO UTILITY LINES CAUSED
1 / E� \ BY THE CONTRACTORS OPERATIONS SHALL BE REPAIRED AT THE
= 2.30 x 3.51 x 5 x 60 CONTRACTORS EXPENSE. THE CONTRACTOR SHALL VERIFY THE
O \ = 2,422 cubic foot HORIZONTAL AND VERTICAL ALIGNMENT OF EXISTING AND PROPOSED
-- ' STORM SEWER,S SEWER R A A LINESENSURE THAT
1 / 7 Volume Provided THEY ARE INSTALLED WITH ADEQUATE OVER AND CLEARANCE . ALL
36" RCP x 388 = 2,743 cubic foot
/LOT/ O SLIVER, SANITARY S EWERBAND nAPPURTENANCES, IWATER MATINS. SERVICES
2 5 dia Inlets x 35 = 687 cubic foot AND APPURTENANCES. ALL UTILITY TRENCHES SHALL BE BACKFILLED
+�- O AND COMPACTED WITH SELECT MATERIAL AS SPECIFIED IN NOTE 4
` O 7_ 30 cubic foot ABOVE_
_ 34 '
On -Site & Off -Site
Release 25 Year Undeveloped Flow 6. THE CONTRACTOR SHALL COMPLY WITH ALL APPLICABLE LAWS,
CODES AND ORDINANCES GOVERNING WORK OF THIS TYPE.
Acreage 6.92 Acres
/ Runoff Coeffecient 0.55 7. THE INSTALLATION OF ALL CULVERT PIPE TO BE IN ACCORDANCE
/ /. / / \ WITH AHTD SPECIFICATIONS.
CONSTRUCT CONCRETE / Time of Concentration 10 min.
DRIVEWAY APRON WITH CURB INLET
^ v� / 0 �0 FL-474.50 / 25 Year Rainfall Intensity 7.1 in./hr. 8. ALL EXISTING IMPROVEMENTS WHICH INTERFERE WITH THE WORK,
HANDICAP RAMPS \ \ / Q--� 0• \ / 0 cfs = 27 Q = 0.55(7.1)(6.92).AND ARE NOT TO BE SAVED SHALL BE REMOVED AND DISPOSED OF.
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IMPRnVFMFNT¢ IN THE RIGHT-OF-WAY WHICH ARF TO REMAIN SHALL BE
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�� �v PROTECTED BY THE CONTRACTOR.
Use 18" RCP as Outlet
CON 6'y /yam \ 1/2 9, ALL REINFORCED CONCRETE PIPE (RCP) SHALL BE CLASS III WITH
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JU ON �X ; ��/ GRATE \ ^ / Q = C x A x (2gh) BELL AND SPIGOT TYPE JOINTS. PIPE, MATERIAL AND INSTALLATION 11 7u50 \ ;/// \ / Q = 0.6 x 1.77 x (2 x 32.2 x 9.85)/2 SHALL BE IN CONFORMANCE WITH APPLICABLE ARKANSAS HIGHWAY AND
TRANSPORTATION DEPARTMENT (AHTD) STANDARD CONSTRUCTION
/ = 26.7 cfs < 27.0 cfs SPECIFICATIONS.
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10_ ALL CORRUGATED METAL PIPE SHAI_I_ MEET OR EXCEED AHTD
C%, \ REQUIREMENTS FOR GAUGE AND CORRUGATION AND SHALL BE POLYMER
COATED IN ACCORDANCE WITH ASTM A-742 AND AASHTO M-246. THE
j \ LAST 12" OF EACH LENGTH SHALL BE RECORRUGATED WITH ANNULAR
CORRUGATIONS TO ACCEPT CORRUGATED COUPLING BANDS.
\ i 7 NLET / / \ \ \ 11. ALL WATER MAINS AND SEWER MAINS AND THEIR APPURTENANCES
�• -4/ INCLUDING INSTALLATION, SHALL COMPLY WITH THE LATEST
\00CENTRAL ARKANSAS WATER AND LITTLE ROCK WASTEWATER UTILITY
\ \ \ � / / / SPECIFICATIONS. CONNECTIONS SHALL NOT BE MADE TO EXISTING LINES
UNTIL NEW CONSTRUCTION HAS BEEN TESTED AND APPROVED BY THE UTILITY.
CT
-472.50 \ / / 12. THE CONTRACTORS ATTENTION IS SPECIFICALLY CALLED TO THE
LOCATION OF THE EXISTING IMPROVEMENTS.
\ f\ \ \ THE CONTRACTOR SHALL BE SOLELY RESPONSIBLE FOR DAMAGING ANY
\ \ EXISTING IMPROVEMENTS WHICH ARE TO REMAIN.
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2.J PRIOR TO SUBMITTING HIS BID, THE CONTRACTOR SHALL REVIEW THE
PLANS AND SPECIFICATIONS. HE SHALL VISIT THE SITE AND INSPECT
THE CONDITION OF THE SITE AND THE ,ADJACENT IMPROVEMENTS.
ANY EXISTING UTILITIES THAT REQUIRE RELOCATION WILL BE THE
RESPONSIBILITIES OF THE CONTRACTOR AND NOT THE OWNER.
O / THE CONTRACTOR WILL HOLD THE OWNER HARMLESS FROM ANY
UNFORSEEN COSTS ASSOCIATED WITH THE STREET IMPROVEMENTS.
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13. THE CONTRACTOR SHALL CALL "ONE -CALL" FOR LOCATION OF ALL
'51 A 1 g'.,. UTILITIES PRIOR TO COMMENCEMENT OF ANY EXCAVATION.
A Is Q 14. ANY EXCESS EXCAVATED MATERIAL, NOT REQUIRED FOR CONSTRUCTION
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OF FILLS SHALL BE HAULED OFF SITE.
\ \ R* ' * ra EGISTEREF 1
PROFESSIONAL 15. THE CONTRACTOR SHALL BE REQUIRED TO POST A MAINTENANCE BOND
i WITH THE CITY OF LITTLE ROCK FOR THE PUBLIC IMPROVEMENTS ON KANIS ROAD.
ENCINEEtE
�. THE BOND SHALL BE FOR ONE HALF THE COST OF LMPROVEMEN�'S i FOR a;`n.v( COWINIISSI �t A ONE YEAR PERIOD. r 0l'ED SUBJECT in lHE CONDITIO 4c
No.5033 s'S I`r^ E0 1INT HF PLANNi}VG OMAQISSI
/ \ NdNUT CORD DATED �
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