Onondaga Dam
Dam in Onondaga County, New York · Onondaga Creek · forms Onondaga Creek at Flood Ctrl Dam at Onondaga Nation
Height
67 ft
20 m (NID height)
Length
2,050 ft
625 m
Completed
1949
Onondaga Creek at Flood Ctrl Dam at Onondaga Nation today
459.34 ft
7 days ▼ 0.18 ft
Normal for the date
Reservoir level measured Oct 23, 2026, 1:00 PM EDT. Full level page →
Facts
- Purposes
- Flood Risk Reduction
- Dam type
- Earth
- Owner
- NYS DEC DIVISION OF WATER (State)
- Maximum storage
- 48,400 acre-ft
- Surface area
- 2,500 acres
- Drainage area
- 68 sq mi
- Spillway
- Uncontrolled, 200 ft wide
- Army Corps district
- Baltimore District
- NID ID
- NY00794
Facts from the U.S. Army Corps of Engineers National Inventory of Dams, record updated Oct 6, 2026. Search NID ID NY00794 at nid.sec.usace.army.mil. Project website.