Pastorius - Main Dam is an earth dam located in La Plata County, Colorado, built in 1903. It carries a Significant hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 1,090 ft long, taller than 59% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Colorado |
| County | La Plata |
| Nearest City | Bondad |
| River/Stream | W Fork Cottonwood Gulch-os |
| Coordinates | 37.19761, -107.81271 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 26 ft |
| Dam Length | 1,090 ft |
| Year Completed | 1903 (123 years old) |
Storage & Hydraulics
| NID Storage | 565 acre-ft |
| Max Storage | 565 acre-ft |
| Normal Storage | 295 acre-ft |
| Surface Area | 45 acres |
| Max Discharge | 1,100 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Florida Consolidated Ditch Co. (cole, Roger) |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 04/20/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO00894 |
| Federal ID | CO00894 |
| More Info | State Dam Safety Program |