Thunder Basin No 9
Low HazardNot Rated ConditionEmergency Action Plan: Not Required
Location
| State | Wyoming |
| County | Weston |
| Nearest City | EDGEMONT, SD |
| River/Stream | LITTLE FROG CREEK |
| Coordinates | 43.58018, -105.00945 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 420 ft |
| Year Completed | 1937 (89 years old) |
Storage & Hydraulics
| NID Storage | 53 acre-ft |
| Max Storage | 53 acre-ft |
| Normal Storage | 53 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 2 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | USDA FS |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 05/26/2011 |
| Emergency Action Plan | Not Required |