Expanded Kansas River Hydropower

Expanded Kansas River Hydropower is a gravity dam located in Douglas County, Kansas, built in 1874. It carries a Low hazard potential classification and has a fair condition assessment.

About Expanded Kansas River Hydropower

The primary purpose of Expanded Kansas River Hydropower 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 Bowersock Mills And Power Company (private). It impounds the Kansas River near Lawrence.

The dam stands 12 feet tall and stretches 880 feet across, creates a reservoir covering 400 acres, has a maximum storage capacity of 1,700 acre-feet, and collects water from a drainage area of 58,420 square miles. Completed in 1874, the structure is one of the older dams in the region, with over a century and a half of service.

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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 05/03/2018.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StateKansas
CountyDouglas
Nearest CityLawrence
River/StreamKansas River
Coordinates38.97377, -95.23510

Physical Characteristics

Dam TypeGravity
NID Height12 ft
Dam Height12 ft
Dam Length880 ft
Year Completed1874 (152 years old)

Storage & Hydraulics

NID Storage1,700 acre-ft
Max Storage1,700 acre-ft
Normal Storage900 acre-ft
Surface Area400 acres
Drainage Area58,420 sq mi
Spillway TypeControlled

Ownership & Safety

PurposeWater Supply
OwnerBowersock Mills and Power Company
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection05/03/2018
Emergency Action PlanNot Required

Identifiers

NID IDKS00033
Federal IDKS00033
More InfoState Dam Safety Program

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