Bass
Bass is an earth dam located in Johnson County, Wyoming, built in 1969. It carries a Low hazard potential classification and has a fair condition assessment.
About Bass
The primary purpose of Bass is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Tipperary Land Llc C/o Ryan Fieldgrove (private). It impounds the Hoffman Draw near Arvada.
The dam stands 28 feet tall and stretches 490 feet across, creates a reservoir covering 8 acres, and has a maximum storage capacity of 118 acre-feet. Completed in 1969, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 09/15/2020.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wyoming |
| County | Johnson |
| Nearest City | Arvada |
| River/Stream | Hoffman Draw |
| Coordinates | 44.42580, -106.37560 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 490 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 118 acre-ft |
| Max Storage | 118 acre-ft |
| Normal Storage | 69 acre-ft |
| Surface Area | 8 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | TIPPERARY LAND LLC C/O RYAN FIELDGROVE |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 09/15/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00709 |
| Federal ID | WY00709 |
| More Info | State Dam Safety Program |