Pastorius - Main Dam

Pastorius - Main Dam is an earth dam located in La Plata County, Colorado, built in 1903. It carries a Significant hazard potential classification.

About Pastorius - Main Dam

The primary purpose of Pastorius - Main Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Florida Consolidated Ditch Co. (cole, Roger) (private). It impounds the W Fork Cottonwood Gulch-os near Bondad.

The dam stands 27 feet tall and stretches 1,090 feet across, creates a reservoir covering 45 acres, and has a maximum storage capacity of 565 acre-feet. Completed in 1903, the structure is over a century old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 04/20/2022.

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Significant HazardNot Rated ConditionEmergency Action Plan: Yes

Location

StateColorado
CountyLa Plata
Nearest CityBondad
River/StreamW Fork Cottonwood Gulch-os
Coordinates37.19761, -107.81271

Physical Characteristics

Dam TypeEarth
NID Height27 ft
Dam Height26 ft
Dam Length1,090 ft
Year Completed1903 (123 years old)

Storage & Hydraulics

NID Storage565 acre-ft
Max Storage565 acre-ft
Normal Storage295 acre-ft
Surface Area45 acres
Max Discharge1,100 cfs
Spillway TypeControlled

Ownership & Safety

PurposeIrrigation
OwnerFLORIDA CONSOLIDATED DITCH CO. (COLE, ROGER)
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Rated
Last Inspection04/20/2022
Emergency Action PlanYes

Identifiers

NID IDCO00894
Federal IDCO00894
More InfoState Dam Safety Program

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