Data Summary: Smith Mountain Lake
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| Lake Name |
Smith Mountain Lake |
Photo : State Water Control Board, Virginia |
| Site Name |
NAM-37 |
| State |
Virginia |
| Country |
U.S.A. |
| Latitude |
37:6N |
| Longitude |
79:4W |
| Altitude [m] |
238 |
| Surface area [m2] |
80,900,000 |
Volume [m3] |
2,800,000,000 |
| Maximum depth [m] |
61 |
Water level control |
Regulated |
| Normal range of annual water level fluctuation[m] |
- |
Length of shoreline [m] |
805,000 |
| Residence time [yr] |
3.35 |
Catchment area [m2] |
2,570,000,000 |
| Hours of bright Sunshine [hr yr-1] |
- |
Solar radiation [MJ m-2 day-1] |
- |
| Freezing period |
None |
Mixing type |
- |
| Annual fish catch [t yr-1] |
- |
| Total N loading [t yr-1] |
2,262.87 |
Total P loading [t yr-1] |
180.36 |
| Population |
240,209 |
Population density of catchment area [person km-2] |
93.5 |
WATER USAGE
| Domestic water usage [m3 sec-1] |
- |
Irigation water usage [m3 sec-1] |
- |
| Industrial water usage [m3 sec-1] |
- |
Power generation usage [m3 sec-1] |
- |
LAND USE
| Natural landscape [%] |
57.2 |
Agricultural land [%] |
31.5 |
Others [%] |
11.3 |
| Siltation |
Not serious |
Toxic Contamination |
Not serious |
| Eutrophication |
Serious |
Acidification |
None |
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