Chelsea Reservoir No. 2 is an earth dam located in Rogers County, Oklahoma, built in 1955. It carries a Low hazard potential classification.
Dam profile
NID height · 35 ft35 ft tall and 800 ft long, taller than 80% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Chelsea Reservoir No. 2
The primary purpose of Chelsea Reservoir No. 2 is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Town of Chelsea (local government). It impounds the Tr-pryor Cr near Chelsea.
The dam stands 35 feet tall and stretches 800 feet across, creates a reservoir covering 28 acres, and has a maximum storage capacity of 320 acre-feet. Completed in 1955, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 05/20/2011. That was over 15 years ago.
At 35 feet, this dam is taller than 80% of dams nationwide.
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Location
| State | Oklahoma |
| County | Rogers |
| Nearest City | Chelsea |
| River/Stream | Tr-pryor Cr |
| Coordinates | 36.53677, -95.45506 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 800 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 320 acre-ft |
| Max Storage | 320 acre-ft |
| Normal Storage | 198 acre-ft |
| Surface Area | 28 acres |
| Max Discharge | 4,900 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Town of Chelsea |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/20/2011 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK10480 |
| Federal ID | OK10480 |
| More Info | State Dam Safety Program |