1976 Flood Reports

Download Report:

Title page:
Storm and Flood of July 31-August 1, 1976, in the Big Thompson River and Cache la Poudre River Basins, Larimer and Weld Counties, Colorado
Part A: Meteorology and Hydrology in Big Thompson River and Cache la Poudre River Basins
By JERALD F. MCCAIN of the U.S. GEOLOGICAL SURVEY and LEE R. HOXIT, ROBERT A. MADDOX, CHARLES F. CHAPPELL, and FERNANDO CARACENA of the NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION
Part B: Geologic and Geomorphic Effects in the Big Thompson Canyon Area, Larimer County
By RALPH R. SHROBA, PAUL W. SCHMIDT, ELEANOR J. CROSBY, and WALLACE R. HANSEN of the U.S. GEOLOGICAL SURVEY
With a section on DAMAGE CAUSED BY GEOLOGIC PROCESSES DURING FLOOD PRODUCING STORMS
By JAMES M. SOULE of the COLORADO GEOLOGICAL SURVEY
Storm and Flood of July 31-August 1, 1976, in the Big Thompson River and Cache la Poudre River Basins, Larimer and Weld Counties, Colorado (large .pdf)

After the 1976 flood, Toups Corporation was hired to produce the “Big Thompson Disaster Recovery Planning Report” for the Larimer-Weld Regional Council of Governments and the Big Thompson Recovery Planning Office. The report filled 6 volumes and covers a variety of land use and planning topics as well as demographic information about the Big Thompson Canyon. Ayres Associates, our current master plan consultant referred to this information while working on our current plan.

1976 Big Thompson Disaster Recovery Planning Report (Toups), Vol 1 (large .pdf)

1977 Toups Report Vol 2 Maps & Charts for Vol 1

1977 Toups Vol 3 Land Use, Police, Water Qual

1977 Toups Vol 4 Land Use Maps & Charts for Vol 3

1977 Toups Vol 5 Final Land Use Plan

1977 Toups to W Quirk Vol 6 Wastewater

Summary of the state response to the 1976 Flood: Lessons learned. It’s interesting today for the lessons apparently NOT learned:
Big Thompson Flood Disaster: Final Report to the Governor of Colorado, December 31, 1977

1976 Big Thompson Hydrology Study Gingery

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