Marks Lake

Marks Lake is a concrete dam located in Washington County, Maine, built in 1820. It carries a Low hazard potential classification and has a poor condition assessment.

About Marks Lake

The primary purpose of Marks Lake 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 Donald Page (private). It impounds the Middle River.

The dam stands 12 feet tall and stretches 145 feet across, creates a reservoir covering 182 acres, has a maximum storage capacity of 1,322 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1820, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 12/06/2011. That was over 14 years ago.

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Low HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateMaine
CountyWashington
River/StreamMiddle River
Coordinates44.75167, -67.51167

Physical Characteristics

Dam TypeConcrete
NID Height12 ft
Dam Height12 ft
Dam Length145 ft
Year Completed1820 (206 years old)

Storage & Hydraulics

NID Storage1,322 acre-ft
Max Storage1,322 acre-ft
Normal Storage440 acre-ft
Surface Area182 acres
Drainage Area6 sq mi

Ownership & Safety

PurposeWater Supply
OwnerDonald Page
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentPoor
Last Inspection12/06/2011
Emergency Action PlanNot Required

Identifiers

NID IDME00719
Federal IDME00719
More InfoState Dam Safety Program

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