FLOOD05902

• County: Weld
• Community: Elizabeth
• Stream Name: Running Creek
• Basin: South Platte
• Title: Floodplain Information Report
• Date: 7/1/1979
• Prepared For: Elizabeth
• Prepared By: WRC Engineering, Inc.
• Contract/PO #: &&
• Floodplain - Doc Type: Floodplain Report/Masterplan

CHAPTER XII
EXISTING DRAI~ACE FACILITIES
AND FLOODING PROBLEMS

TABLE-9
DRAINACE STRUCTURE CAPACITIES

Present Drail1.ap.e Facilieies

REFERENCE . CAPACUY- '"'
LOCATION en" "m STRUCTURE
STATION NUMBER SIZE I. TYPE EXISTING >W<,,"'" REQUIRED Q"
County Road 41+50 , 24"><32'CMP 5 " m
1136
Poplar Street 22+15 , JO"x40'CI1P 30 30 90
Elm/Elbert 19+20 J 36" x 58' "" " 40
Streets
Elm Street 19+20 , 24"x40'CMP , " ""
Elbert Street 19+20 5 18"><40' CMP " .
Broadway 15+00 . Bridge 40 40 '"
PineStr"..t 13+40 , (Two) 50 30 '"
2'," , 30' CMP
Banner/Lincoln 10+35 8 8tortll Sewer 55 55 '" (Q50)
Streets (Size variea)
r"borStreet 6+50 9 2-4"" 48' "" " " "
Elm/l^.obile 9+30 W 18" x 30' C~ Q Q "
Streets

Field investigations were perfonned by Wster Resources Consultant.,
Inc. and the COlorado Water Conservation Board to determine the size and
capacity of the existing drainage facilities along the major drainageways.
The locations of these drainage facilitiea are .hown on PIstes 17 through
<9.

Drainage Structure Conveyance

Each culvert was hydraulically analyzed to determine its capacity. The
capacity is considered to be th~ m3~imum flo~ without street overtopping.
l'hecapacityw<lscstimatedforexistingc()nditions,whichmllyinc1udesom"
sediment blockage, and for open culv~,[ condition.. Tablc-9 su~rizes the
rcsults of this an;:tly.is for e3ch drllinag., strllcturP along the ,""i" <lT~i,,"gp-

"3Y6.

" NOrES fOR TABLE-9

1. Cru.hed ends; inlet ",b.nucted; mlnir.>um cover.
2. Culvert is unobstructed.
3. Sediment accumulation in barrEl . 40~ restricted.

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