| Quantity | Unit | |
|---|---|---|
| Age1 | 68 | Years |
| Watershed Area2 | 50.75 | Square miles |
| Reservoir: | ||
| Area at spillway stage: | ||
| Original | 30.91 | Acres |
| At date of survey | 25.86 | Acres |
| Storage capacity to spillway level: | ||
| Original | 126 | Acre-feet |
| At date of survey | 52 | Acre-feet |
| Capacity per square mile of drainage area:2 | ||
| Original | 2.48 | Acre-feet |
| At date of survey | 1.02 | Acre-feet |
| Sedimentation: | ||
| Sediment above crest4 | 5.5 | Acre-feet |
| Sediment below crest | 74 | Acre-feet |
| Average annual accumulation: | ||
| From entire drainage area2 | 1.1 | Acre-feet |
| Per 100 square miles of drainage area3 | 2.2 | Acre-feet |
| Per acre of drainage area:3 | ||
| By volume | 1.46 | Cubic feet |
| By weight5 | 0.06 | Ton |
| Depletion of storage: | ||
| Loss of original capacity: | ||
| Per year | 0.86 | Percent |
| To date of survey | 58.73 | Percent |
1 Storage began 1871, no month given, June assumed; average date of survey, June 1939.
2 Including area of pond.
3 Excluding area of pond.
4 Does not include above-crest deposits above Range 11.
5 Assuming average weight of one cubic foot of silt is 80 pounds.