Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

Click to hideNews Bulletins
  • Notice - The USGS Water Resources Mission Area's priority is to maintain the safety and well-being of our communities, including providing critical situational awareness in times of flooding in all 50 U.S. states and additional territories. Our hydrologic monitoring stations continue to send data in near real-time to NWISWeb, and we are continuing critical water monitoring activities to protect life and property on a case-by-case basis. The health and safety of the public and our employees are our highest priorities, and we continue to follow guidance from the White House, the CDC, and state and local authorities.

  • Introducing The Next Generation of USGS Water Data for the Nation
  • Full News RSS icon



Click to hidestation-specific text


LOCATION.--Lat 43°42'44", long 74°58'12" referenced to North American Datum of 1927, Herkimer County, NY, Hydrologic Unit 04150101, at dam on Middle Branch Moose River, 100 ft upstream from bridge on State Highway 28 at Old Forge, and 11.2 mi downstream from dam on Sixth Lake outlet at Inlet.
DRAINAGE AREA.--53.6 mi².
PERIOD OF RECORD.--October 1969 to September 2003 (month-end elevations or gage heights, and contents). October 2003 to current year. Prior to October 1971, published as "Old Forge Reservoir". Records from November 1911 to September 1969, available from Board of Hudson River-Black River Regulating District.
REVISIONS HISTORY.--WDR NY-85-1: Drainage area.
GAGE.--Water-stage recorder and nonrecording gage read once daily. Datum of gage is NGVD of 1929 (levels by Board of Hudson River-Black River Regulating District). To convert elevations to NAVD of 1988, subtract 0.11 ft. Prior to 2004 water year, only nonrecording gage read once daily.
COOPERATION.--Elevation record and capacity table (1959) provided by Board of Hudson River-Black River Regulating District.
REMARKS.--The First through Fifth Lakes of Fulton Chain Lakes are partially formed and controlled by a concrete dam with 12-inch flashboards. Storage began around 1881 or 1882 with a wooden crib dam. This dam was replaced with a concrete dam in 1905 and gates were installed in 1927. Usable capacity, 895.6 mil ft³ between minimum operating level, elevation 1,696.8 ft, and crest of spillway with flashboards, elevation 1,707.04 ft. Usable capacity without flashboards, 764.3 mil ft³, elevation 1,706.06 ft; no dead storage below minimum operating level. Figures given herein represent usable contents. The dam is operated by Board of Hudson River-Black River Regulating District.
Capacity table (elevation, in feet, and usable contents, in millions of cubic feet)

Elevation  Contents      Elevation  Contents
1,699.4       0.5        1,704.0     498.0
1,700.0      21.0        1,706.0     756.5
1,702.0     252.0        1,707.9   1,015.0

EXTREMES FOR PERIOD OF RECORD.--Maximum elevation observed, 1,707.93 ft, June 17, 1972, contents, 1,019 mil ft³; minimum elevation observed, 1,699.8 ft, Nov. 3, 1939, contents, 6.50 mil ft³.

Peak Flow and Stage Information

NAVD 1988 Datum Conversion Information

Instantaneous elevation data provided by Hudson River - Black River Regulating District, not reviewed by the USGS.

Gage PhotoStation image


This station managed by the NY Water Science Center Troy.

Available Parameters Period of Record
2003-09-30  2020-04-04


  -- or --



Summary of all available data for this site
Instantaneous-data availability statement

Lake or reservoir water surface elevation above NGVD 1929, feet

Graph of DAILY Lake or reservoir water surface elevation above NGVD 1929, feet

Add up to 2 more sites and replot for "Lake or reservoir water surface elevation above NGVD 1929, feet"


Create presentation-quality graph.