Lake Bonham Dam

Lake Bonham Dam is an earth dam located in Fannin County, Texas, built in 1969. It carries a Significant hazard potential classification and has a fair condition assessment.

About Lake Bonham Dam

The primary purpose of Lake Bonham Dam 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 City Of Bonham (local government). It impounds the Timber Creek.

The dam stands 59 feet tall and stretches 3,800 feet across, creates a reservoir covering 1,105 acres, has a maximum storage capacity of 43,761 acre-feet, and collects water from a drainage area of 25 square miles. Completed in 1969, the structure is well into its service life at over 50 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 06/23/2021.

At 59 feet, this dam is taller than 95% of all dams in the United States.

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Significant HazardFair ConditionEmergency Action Plan: Yes

Location

StateTexas
CountyFannin
River/StreamTimber Creek
Coordinates33.64806, -96.13526

Physical Characteristics

Dam TypeEarth
NID Height59 ft
Dam Height53 ft
Dam Length3,800 ft
Year Completed1969 (57 years old)

Storage & Hydraulics

NID Storage43,761 acre-ft
Max Storage43,761 acre-ft
Normal Storage11,038 acre-ft
Surface Area1,105 acres
Drainage Area25 sq mi
Max Discharge2 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerCITY OF BONHAM
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection06/23/2021
Emergency Action PlanYes

Identifiers

NID IDTX00402
Federal IDTX00402
More InfoState Dam Safety Program

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