Mattingly No 1 is an earth dam located in Bryan County, Oklahoma, built in 1967. It carries a Low hazard potential classification.
Dam profile
NID height · 18 ft18 ft tall and 1,080 ft long. 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 Mattingly No 1
The primary purpose of Mattingly No 1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by United Building Contractors (private). It impounds the Tr-sassafras Cr near Blue.
The dam stands 18 feet tall and stretches 1,080 feet across, creates a reservoir covering 2 acres, and has a maximum storage capacity of 102 acre-feet. Completed in 1967, 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 08/16/2006. That was over 20 years ago.
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Location
| State | Oklahoma |
| County | Bryan |
| Nearest City | Blue |
| River/Stream | Tr-sassafras Cr |
| Coordinates | 33.94656, -96.32452 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 1,080 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 102 acre-ft |
| Max Storage | 102 acre-ft |
| Normal Storage | 54 acre-ft |
| Surface Area | 2 acres |
| Max Discharge | 1,984 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | United Building Contractors |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/16/2006 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK21181 |
| Federal ID | OK21181 |
| More Info | State Dam Safety Program |