FLOOD08576

• County: Larimer
• Stream Name: Big Thompson River, Little Thompson Rivre
• Basin: South Platte
• Title: Flood Plain Information - Big Thompson and Little Thompson River
• Date: 6/1/1977
• Prepared For: Larimer, Boulder Counties
• Prepared By: US Army Corps of Engineers - Omaha
• Floodplain - Doc Type: Floodplain Report/Masterplan

TABLES

Table

Paqe

2
3

Big Thompson River Basin Vicinity
CI imatological Data".."".."""......."""""""...".." 3

Stream Gag I n9 Data .".".."...""...""..."."".."..".." II

"

Annual Peak Discharges for the Big Thompson River

Near Drake"".."""""""""...""".."..."..."".""..""." 16

4 Annual Peak Discharges for the Big Thompson River

Near La Salle """"."..."."".."."..."..""".".""."""" 17

5 Annual Peak Discharges for the Little Thompson
River Near Berthoud ............................... 18

6 Summary of Pertinent Discharges for the Big
Thompson River Bastn .............................. 23

7 Flood Plain Reference Data, Big Thompson River
Loveland to the Larimer-Weld County Line,

Colorado .. .'.""""""""......".""........."."."".""." 32

8 Flood Plain Reference Data, Little Thompson River
Boulder and Larimer Counties Near Berthoud,
Colorado """""".""""""..".""""".""""""".""""""""""" 36

PHOTOGRAPHS

Flqure

Paqe

Big Thompson River. Looking downstream from
County Road 9E (reference point I) ................ 5

2 Big Thompson River. Looking downstream from
U. S. Highway 87 (reference point 22) ............. 5

3 Big Thompson River. Looking upstream from
County Road 3S (reference point 37) ............... 6

4 Big Thompson River. Looking upstream from the
Larimer-Weld County Line (reference point 50) ..... 6

5 LIttle Thompson River. LookIng upstream from
County Road 4 (reference point 59) ................ 7

6 Little Thompson River. Looking downstream from
County Road 4 (reference point 59) ................ 7

7 Little Thompson River. Looking upstream from
U. S. Highway 287 (reference point 69) ............ 8

II