Indianford Dam -- Today's Gate Position

April 17, 2024 – All gates at the Indianford Dam are open and allowing water to travel through the management system.

Boater Safety Education Course

Registration is open for Rock County’s final 2024 Boater Safety Education Course.  This course will be held on April 30 from 6:00 p.m. – 7:00 p.m. and May 11 from 8:00 am. – 3:00 p.m. at the Rock County Fairgrounds – Craig Center. Both sessions are mandatory to graduate.

Anyone born on or after January 1, 1989, is required to complete Boater Safety in order to legally operate a motorized boat or personal watercraft (PWC) on Wisconsin waters. It is recommended that participants are at least 12 years of age

Slow No Wake Declared on Rock River

According to US Geological Survey Gauges, the water level for the Rock River at Lake Koshkonong is 8.22 feet. County Ordinance requires a slow-no-wake speed restriction be placed on the Rock River when the water level exceeds 8 feet. Also, the gauges on the Rock River in Beloit are at 8.5 feet. County Ordinance requires a slow-no-wake speed restriction be placed on the Rock River when the water level reaches 8.5 feet.

The Sheriff’s Office is providing public notice of the Rock River’s current slow-no-wake status. Deputies placed slow-no-wake signs along the river at all public access points between Lake Koshkonong and the Indianford Dam and the W B R Townline Road Bridge and the Stateline.Currently, the entire Rock River in Rock County is under a slow-no-wake speed restriction.

Interested in a Tour of the Indianford Dam?

The Rock Koshkonong Lake District would like to invite those interested in viewing the water control structure to please send a request to

Check current water levels

See current water level data for the Rock River and Lake Koshkonong provided by NOAA and the National Weather Service



The Rock Koshkonong Lake District mission is to protect, preserve and improve the natural resources of Lake Koshkonong and the Rock River for an equal balance of wildlife, habitat and recreation.

Solicitation to Bid
Engineering and Installation of Upstream Debris Boom, Indianford Dam
Pre-Bid Tour: April 22, 2024
Bids Due: May 13, 2024
Please view Bid Documents for additional information.

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Lake Koshkonong Water Information from NOAA and the National Weather Service

River stage and inflow forecasts typically include 24 hours of precipitation from April through September and 48 hours of precipitation from October through March.

About The Rock-Koshkonong Lake District

The Rock-Koshkonong Lake District is the largest lake district in the State of Wisconsin, spanning three counties – Rock, Dane and Jefferson.

Formed in 1999 to better manage the resources of the Rock River and Lake Koshkonong, the Rock-Koshkonong Lake District boundary starts at the Indianford Dam on the Rock River, includes Lake Koshkonong and continues north to the Jefferson city limits.