Sylvan Lake Dam

Sylvan Lake Dam is an earth dam located in Noble County, Indiana, built in 1839. It carries a High hazard potential classification and has a fair condition assessment.

About Sylvan Lake Dam

The primary purpose of Sylvan Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Rome City Conservancy District (local government). It impounds the Unnamed Tributary North Branch.

The dam stands 30 feet tall and stretches 2,730 feet across, creates a reservoir covering 630 acres, has a maximum storage capacity of 7,400 acre-feet, and collects water from a drainage area of 33 square miles. Completed in 1839, the structure is one of the older dams in the region, with over a century and a half of service.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. 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 08/28/2018. That was 7 years ago, which is on the longer end for a high-hazard structure.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Indiana dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateIndiana
CountyNoble
River/StreamUnnamed Tributary North Branch
Coordinates41.49840, -85.37724

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Dam Length2,730 ft
Year Completed1839 (187 years old)

Storage & Hydraulics

NID Storage7,400 acre-ft
Max Storage7,400 acre-ft
Normal Storage5,986 acre-ft
Surface Area630 acres
Drainage Area33 sq mi
Max Discharge11,700 cfs
Spillway TypeControlled

Ownership & Safety

PurposeRecreation
OwnerROME CITY CONSERVANCY DISTRICT
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection08/28/2018
Emergency Action PlanYes

Identifiers

NID IDIN00383
Federal IDIN00383
More InfoState Dam Safety Program

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