Smith
Smith is a rockfill dam located in Costilla County, Colorado, built in 1914. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Smith
The primary purpose of Smith is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Trinchera Irrigation Co. (tracy Kester) (private). It impounds the Trinchera Creek near Arroya Hondo, Nm.
The dam stands 42 feet tall and stretches 585 feet across, creates a reservoir covering 587 acres, has a maximum storage capacity of 14,058 acre-feet, and collects water from a drainage area of 351 square miles. Completed in 1914, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 06/23/2022.
At 42 feet, this dam is taller than 89% of dams nationwide.
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Location
| State | Colorado |
| County | Costilla |
| Nearest City | Arroya Hondo, Nm |
| River/Stream | Trinchera Creek |
| Coordinates | 37.38668, -105.54112 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 42 ft |
| Dam Height | 32 ft |
| Dam Length | 585 ft |
| Year Completed | 1914 (112 years old) |
Storage & Hydraulics
| NID Storage | 14,058 acre-ft |
| Max Storage | 14,058 acre-ft |
| Normal Storage | 4,050 acre-ft |
| Surface Area | 587 acres |
| Drainage Area | 351 sq mi |
| Max Discharge | 12,200 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | TRINCHERA IRRIGATION CO. (TRACY KESTER) |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/23/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO00792 |
| Federal ID | CO00792 |
| More Info | State Dam Safety Program |