Mattingly No 1

Mattingly No 1 is an earth dam located in Bryan County, Oklahoma, built in 1967. It carries a Low hazard potential classification.

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 19 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateOklahoma
CountyBryan
Nearest CityBlue
River/StreamTr-sassafras Cr
Coordinates33.94656, -96.32452

Physical Characteristics

Dam TypeEarth
NID Height18 ft
Dam Height18 ft
Dam Length1,080 ft
Year Completed1967 (59 years old)

Storage & Hydraulics

NID Storage102 acre-ft
Max Storage102 acre-ft
Normal Storage54 acre-ft
Surface Area2 acres
Max Discharge1,984 cfs
Spillway TypeControlled

Ownership & Safety

PurposeIrrigation
OwnerUNITED BUILDING CONTRACTORS
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection08/16/2006
Emergency Action PlanNot Required

Identifiers

NID IDOK21181
Federal IDOK21181
More InfoState Dam Safety Program

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