Tivoli Lake Dam

High HazardPoor ConditionEmergency Action Plan: Yes

Location

CountyRockland
Nearest CitySloatsburg
River/StreamTR-RAMAPO RIVER
Coordinates41.14175, -74.19924

Physical Characteristics

Dam TypeConcrete
NID Height29 ft
Dam Height29 ft
Dam Length140 ft
Year Completed1908 (118 years old)

Storage & Hydraulics

NID Storage1,100 acre-ft
Max Storage1,100 acre-ft
Normal Storage800 acre-ft
Surface Area103 acres
Drainage Area2 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerPIERSON LAKE HOMEOWNERS ASSOCIATION
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentPoor
Last Inspection08/28/2024
Emergency Action PlanYes

Identifiers

NID IDNY00052
Federal IDNY00052
More InfoState Dam Safety Program

Nearby Dams

Tivoli Lake Spillway 0.4 mi Significant Potake Lake Dam 0.6 mi High Pine Grove Lake Dam 1.7 mi High Shepherd Lake Dam 1.7 mi Low Sallys Pond Dam 3.2 mi High Sterling Forest Lake Dam 3.2 mi High Cupsaw Lake Dam 3.4 mi High Bear Swamp Pond Dam 3.6 mi Low Erskine Upper Lake Dam 4.0 mi High Mcmillan Reservoir Dam 4.0 mi Low