Isom No 1

Isom No 1 is an earth dam located in Bryan County, Oklahoma, built in 1972. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspection09/10/1999
Height27 ft
Built197254 years ago

Dam profile

NID height · 27 ft
27 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

27 ft tall and 860 ft long, taller than 59% 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 Isom No 1

The primary purpose of Isom 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 Bruce Isom (private). It impounds the Tr-j-n Cr near Burris Cemetery.

The dam stands 27 feet tall and stretches 860 feet across, creates a reservoir covering 20 acres, and has a maximum storage capacity of 160 acre-feet. Completed in 1972, 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 09/10/1999. That was over 27 years ago.

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Location

StateOklahoma
CountyBryan
Nearest CityBurris Cemetery
River/StreamTr-j-n Cr
Coordinates33.94682, -96.28901

Physical Characteristics

Dam TypeEarth
NID Height27 ft
Dam Height27 ft
Dam Length860 ft
Year Completed1972 (54 years old)

Storage & Hydraulics

NID Storage160 acre-ft
Max Storage160 acre-ft
Normal Storage120 acre-ft
Surface Area20 acres
Max Discharge122 cfs
Spillway TypeControlled

Ownership & Safety

PurposeIrrigation
OwnerBruce Isom
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Last Inspection09/10/1999
Emergency Action PlanNot Required

Identifiers

NID IDOK00062
Federal IDOK00062
More InfoState Dam Safety Program