S. P.
S. P. is an earth dam located in Natrona County, Wyoming, built in 1952. It carries a Low hazard potential classification and has a poor condition assessment.
About S. P.
The primary purpose of S. P. is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Robert P. Ingram Jr. Lving Trust (private). It impounds the East Webb Creek near Casper.
The dam stands 29 feet tall and stretches 465 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 52 acre-feet. Completed in 1952, 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 06/04/2024.
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Location
| State | Wyoming |
| County | Natrona |
| Nearest City | Casper |
| River/Stream | East Webb Creek |
| Coordinates | 42.79400, -106.42500 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 25 ft |
| Dam Length | 465 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 52 acre-ft |
| Max Storage | 52 acre-ft |
| Normal Storage | 28 acre-ft |
| Surface Area | 4 acres |
| Max Discharge | 1,069 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | ROBERT P. INGRAM JR. LVING TRUST |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 06/04/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00282 |
| Federal ID | WY00282 |
| More Info | State Dam Safety Program |