Overview
East Canyon Dam is a concrete thin-arch structure, 10 miles southeast of Morgan on East Canyon Creek. The new dam, with a height of 260 feet, a top thickness of 7 feet, crest length of 436 feet, and a volume of 35,716 cubic yards, replaces an old concrete arch dam and increases the reservoir capacity from 29,000 to 51,200 acre-feet, covering a surface area of 684 acres. The uncontrolled spillway is on the left end of the dam and has a 6,200-cubic-foot-per-second capacity; the outlet through the dam has a capacity of 710 cubic feet per second.
Geology
Located in a narrow-walled canyon where the stream has cut through very hard, massive, well-cemented beds of the conglomerate of late upper Cretaceous ages. Also, the Wasatch fault is located about 12 miles west of the dam. Finally, there is an inactive fault about 300 feet upstream from the dam.
General
| Project | Weber Basin |
| Longitude | -111.60085916519165 |
| Latitude | 40.920533533014264 |
| Watercourse | East Canyon Creek |
| Reservoir | East Canyon |
| Original Construction | 1964-1966 |
| National ID Number | UT10119 |
| Base Width | 20 ft |
Dimensions
| Crest Elevation | 5715.0 ft |
| Structural Height | 259.8 ft |
| Hydraulic Height (Normal Operating Depth at Dam) | 195.0 ft |
| Crest Width | 7 ft |
| Top of Joint Use Pool (Elevation) | 5705.0 ft |
| Top of Inactive Conservation Pool (Elevation) | 5577.0 ft |
| Top of Dead Storage Pool (Elevation) | 5564.5 ft |
| Streambed at Dam Axis | 5520.0 ft |
| Crest Length | 436 ft |
| Volume of Dam Construction Materials | 35716 cu yd |
Hydraulics & Hydrology
| Spillway Capacity at Elevation | 6200 cfs at 5715 |
| Outlet Works Capacity at Elevation | 700 cfs at 5715 ft |
| Maximum Water Surface Elevation | 5715.0 ft |
| Drainage Area | 145 sq mi |
Contact
