FLOOD06021

• County: Larimer
• Stream Name: Big Thompson
• Basin: South Platte
• Title: Flood History of the Big Thompson River Basin: Flash Floods, Paleofloods, and Dam-Break Floods
• Date: 1/1/1979
• Prepared For: Larimer
• Prepared By: USGS
• Floodplain - Doc Type: Flood Documentation Report

1.000.000

FLOOD. JULY 31-AUGUST I, 1976, BIG THOMPSON RIVER. COLORADO

76

+ Maxlmum floods in eastem Colorado

* Rood of July .,-August 1, 1976

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10 100
DRAINAGE AREA. IN SQUARE MILES

FIGURE 61.-Relation of peak diseharge to drainage area for f100d of July 31-August 1. 1976. and previous maximum floods.

Drainage area.-164 mi2,
Dischal'ge record. -Peak discharge by slope-area measuretDent.
M""imum.-July-August 1976: Discharge, 4,330 ft'fa about 2300
MDT July 31.

SITE 7: BIG THOMPSON RIVER TRIBUTARY BELOW
LOVELAND HEIGHTS, COLO.
IMISCELLANEOUS SITE)

Location.-Lat 40'23'44': long 105'27'34", in SEI<iSEI<i sec. 16,
T. 5 N., R. 72 W.. Larimer County, 0.4 mi upstream from moutb,
0.5 mi northeast of Loveland Heights, and 2.5 mi east of Est..
Park.
Drainage orea.-1.a7 mi2.
Discho.rge record.-Peak discharge by slope-area measurement.
M""imum.-July-August 1976: Discharge, 8,700 ft'ls July 31.

SITE 8: DARK GULCH AT GLEN COMFORT, COLO.
(MISCELLANEOUS SITE)

Location.-Lat 40'23'44". long 105'26'17", in SWI<i sec. 14. T. 5
N.. R. 72 W.(unsurveyedl, Larimer County, 800 ft upstream from
mouth, 800 ft north of Glen Comfort, and 3.5 mi east of Est..
Park.

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10,000

Drainage area.-1.00 mi2.
Discharge record.-Peak discharge by sIope-area m....urement.
M""imum.-July-August 1976: Discharge, 7,210 ft'fs July 31.

SITE 9: NOELS DRAW AT GLEN COMFORT, COLO.
(MISCELLANEOUS SITE)

Location.-Lat 40'23'25", long 105'26'00", in NEY.NWY. sec. 23,
T.5 N., R. 72 W.. LarimerCounty,I,10Dftupstreamfrommoutb,
0.3 mi south of Glen Comfort, and 3.8 mi east of Estes Park.
Drainage area.-3.37 mi2,
Discharge record. -Peak diseharge by slope-area measurement.
M""imum.-July-August 1976: Discharge, 6,910 ft'fs July 31.

SITE 10: RABBIT GULCH NEAR DRAKE, COLO.
IMISCELLANEOUS SITE)

Locatiol'l.-Lat 40024'23", long 105024'17", in NE\4NEVt sec. 13.
T. 5 N.. R. 72 W. (unsurveyed), Larimer County, 300 ft upstream
from mouth. 5.5 mi northeast of Estes Park, and 4.0 mi southwest
of Drake.
. Drainage area.-3.41 mi2.
Discharge reco1"d.-Peak discharge by slope-area measurement.
Maximum.-July-August 1976: Discharge, 3,540 ft'ls July 31.