HomeMy WebLinkAboutS-0050-K Map 3'40"�l
LIGHT DUTY PA N G HEAVY DUTY P AV I N G
6" SB-2 & 2" HMAC 8" SB-2 &3" HMAC
50 0 50
Note: This contract shall include all grading work and erosion
control measures. All other storm drainage and utility work shown GRADING PLAN
on this plan is not part of this contract. 50 SCALE
150
NTION CALCULATIONS 1 /I
Acres / I
Undeve pad DevtO2
ant 0. 5
itration (min.) 1
II Intensity (in./hr.) 7.1 8.5
Doff Rate (R) = 0.92(8.5)-0.55(7.1) = 3.92 in./hr.
Tie Formula
luired=RxA%Tex60
= 3.92 x 12.83 x 5 x 60
15,E cubic foot
vided
CMP x 150' = 1060 cubic foot
Inlets x 12' = 235 cubic foot
= I295 cubic foot
3r Undevolped Flow at Northwest Corner
to 1.2 Acres
to 1.0 Acres
2.2 Acres
ent 0.44
itration 20 min.
II Intensity 5.4 In./hr.
2.2) = 5.2 cfs
P
'29hj"
x(2 x 32.2 x 8)/2
5.2 cfs
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CIVIL ENGINEERING, LAND PLANNING & DEVELOPMENT, SURVEYING PLEASANT RIDGE
401 VICTORY STREET LITTLE ROCK, ARKANSAS 72201
Revised
Date 4-21 —97
Scale Nor. I Vert.
Sheet 4 of U-
Job No. 97-0081
j2-
I Survey By: I Drawn By: I Checked Bv: I Aooroved Bv: 1
LITTLE ROCK, ARKANSAS