Mianus River Dam

Significant HazardSatisfactory ConditionEmergency Action Plan: No

Location

StateConnecticut
CountyFairfield
Nearest CityGREENWICH
River/StreamMIANUS RIVER
Coordinates41.04277, -73.58937

Physical Characteristics

Dam TypeConcrete
NID Height20 ft
Dam Height20 ft
Dam Length350 ft
Year Completed1920 (106 years old)

Storage & Hydraulics

NID Storage525 acre-ft
Max Storage525 acre-ft
Normal Storage525 acre-ft
Surface Area48 acres
Drainage Area30 sq mi
Max Discharge10,158 cfs

Ownership & Safety

PurposeRecreation
OwnerTown of Greenwich
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection04/29/2021
Emergency Action PlanNo

Identifiers

NID IDCT00045
Federal IDCT00045
More InfoState Dam Safety Program

Nearby Dams

Cos Cob Pond Dam 0.7 mi Significant East Pond Dam 1.2 mi Significant Milbrook Upper Lake Dam 1.5 mi Significant Dublin Hill Dam 1.7 mi Significant Hall Pond Dam 1.7 mi Significant Mianus Filter Plant Dam 1.8 mi High Ridgeview Pond Dam 1.9 mi Significant Dingletown Road Dam 2.4 mi Significant Frye Lake Dam 2.7 mi Significant Spahn Pond Dam 2.9 mi Significant