HomeMy WebLinkAboutHOWES SIX TWO NINE - FDP210025 - DOCUMENT MARKUPS - ROUND 3 - UTILITY PLANS (3)FF=5004.17
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S
C
G
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C.O.
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C S
W
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UD UD UD UD UD UD
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FLATS AT THE OVAL
SUBDIVISION
N1
2 LOT 3,
HARRISON'S ADDITION
0.02 ac.
A
0.18 ac.
B
0.09 ac.
C
0.03 ac.
G
0.01 ac.
D
0.07 ac.
E
0.04 ac.
F
a1
b1
f1
e1
c1
d1
g1
LID - BIOSWALE
REQUIRED BOTTOM FILTER SURFACE AREA: 159.9 SF
SURFACE AREA PROVIDED: 160 SF
RIP RAP AROUND
FOREBAY (1.1%)HOWES STREETALLEYSheetHOWES SIX TWO NINEThese drawings areinstruments of serviceprovided by NorthernEngineering Services, Inc.and are not to be used forany type of constructionunless signed and sealed bya Professional Engineer inthe employ of NorthernEngineering Services, Inc.NOT FOR CONSTRUCTIONREVIEW SETENGINEERNGIEHTRONRNFORT COLLINS: 301 North Howes Street, Suite 100, 80521GREELEY: 820 8th Street, 80631970.221.4158northernengineering.comof 15
DR1 OVERALL DRAINAGE PLAN 15
NORTH
( IN FEET )
1 inch = ft.
Feet01515
15
30 45
NOTES:
1.REFER TO THE PRELIMINARY DRAINAGE REPORT FOR ADDITIONAL INFORMATION.
LEGEND:
FOR DRAINAGE REVIEW ONLY
NOT FOR CONSTRUCTION
PROPOSED CONTOUR
PROPOSED STORM SEWER
PROPOSED SWALE
EXISTING CONTOUR
PROPOSED CURB & GUTTER
PROPERTY BOUNDARY
PROPOSED INLET
A
DESIGN POINT
FLOW ARROW
DRAINAGE BASIN LABEL
DRAINAGE BASIN BOUNDARY
PROPOSED SWALE SECTION
11
A
DEVELOPED DRAINAGE SUMMARY
Design
Point Basin ID
Total
Area
(acres)
C2 C100 2-Yr Tc
(min)
100-Yr Tc
(min)
Q2
(cfs)
Q100
(cfs)
a A 0.020 0.77 0.96 5.00 5.00 0.04 0.19
b B 0.177 0.80 1.00 5.00 5.00 0.40 1.76
c C 0.093 0.75 0.94 5.00 5.00 0.20 0.87
d D 0.010 0.45 0.56 5.00 5.00 0.01 0.06
e E 0.072 0.95 1.00 5.00 5.00 0.19 0.71
f F 0.036 0.20 0.25 5.00 5.00 0.02 0.09
g G 0.027 0.57 0.72 5.00 5.00 0.04 0.19
Howes Six Two Nine LID Summary
Project Summary
Total New/Modified Impervious Area 10,847 sf
Target Treatment Percentage 75%
Minimum Area to be Treated by LID Measures 8,135 sf
LID - Bioswale
New/Modified Impervious Area Treated by LID 8,480 sf
Percent of New/Modified Impervious Area
Treated 78.2%
**All circled are line over text.**
1/04/2022