Overview
Newton Dam is an earthfill structure on Clarkston Creek approximately 2 miles north of Newton. It is 101 feet high and has a volume of 410,000 cubic yards. The reservoir has a capacity of 5,600 acre-feet. The service spillway is controlled by a radial gate. An emergency spillway with an uncontrolled crest 1,000 feet long is located near the west end of the dam. A horseshoe conduit, 4 feet in diameter, controlled by a slide gate, serves as outlet works.
Geology
Newton Dam is located in the Cache Valley, a Late Tertiary (Neogene) graben along the eastern margin of the Basin and Range Province. The valley was occupied by an arm of Lake Bonneville in Quaternary times. The dam and appurtenant structures are founded in surficial sediments deposited in the ancient lake.
General
| Project | Newton |
| Dam Type | Zoned Earthfill |
| Location | 1 Mile East of Newton, Utah |
| Longitude | -111.97385787963867 |
| Latitude | 41.895464674413226 |
| Watercourse | Clarkson Creek |
| Reservoir | Newton |
| Original Construction | 1941-1946 |
| National ID Number | UT10129 |
Dimensions
| Crest Elevation | 4781.0 ft |
| Structural Height | 101.0 ft |
| Hydraulic Height (Normal Operating Depth at Dam) | 74.5 ft |
| Crest Length | 3340.0 ft |
| Top of Inactive Conservation Pool (Elevation) | 4725.0 ft |
| Volume of Dam Construction Materials | 410,000 cu yrds |
| Spillway Crest Elevation | 4775.9 ft |
| Streambed at Dam Axis | 4700.0 ft |
| Top of Dead Storage Pool (Elevation) | 4725.0 ft |
Hydraulics & Hydrology
| Spillway Capacity at Elevation | 1260.0 cfs at 4776.7 ft |
| Outlet Works Capacity at Elevation | 240 cfs at 4774.5 ft |
| Drainage Area | 56.0 sq mi |
| Maximum Water Surface Elevation | 47745 ft. |
| Auxiliary Spillway | No |
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