Porter #1
Porter #1 is an earth dam located in Delta County, Colorado, built in 1955. It carries a Low hazard potential classification.
About Porter #1
The primary purpose of Porter #1 is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Delta (caudle, Casey) (local government). It impounds the Oak Creek near Delta.
The dam stands 33 feet tall and stretches 520 feet across, creates a reservoir covering 15 acres, and has a maximum storage capacity of 276 acre-feet. Completed in 1955, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 06/10/2020.
At 33 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | Colorado |
| County | Delta |
| Nearest City | Delta |
| River/Stream | Oak Creek |
| Coordinates | 38.92333, -108.10223 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 33 ft |
| Dam Height | 31 ft |
| Dam Length | 520 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 276 acre-ft |
| Max Storage | 276 acre-ft |
| Normal Storage | 201 acre-ft |
| Surface Area | 15 acres |
| Max Discharge | 849 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | CITY OF DELTA (CAUDLE, CASEY) |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 06/10/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO00616 |
| Federal ID | CO00616 |
| More Info | State Dam Safety Program |