571—37.40(462A) Cedar River and connected backwaters.

1. 37.40(1)  Black Hawk County waters. All vessels shall be operated at a speed not greater than 5 miles per hour when within 600 feet of the Franklin Street bridge. This 600-foot zone shall be designated by buoys, signs, or other approved uniform waterway marking devices. No vessel shall tow skiers, surfboard riders, or other towable devices within this zone.

2. 37.40(2)  Chickasaw County waters. The city of Nashua shall designate and maintain the following 5-mile-per-hour speed zones with marker buoys approved by the commission:

   1. a. All vessels operated in a designated zone extending east 150 feet from the intersection of Wabash Street and Charles City Road and north 380 feet shall be operated at a speed not greater than 5 miles per hour.
   2. b. All vessels operated in a designated zone extending north 131 feet from the intersection of Wabash Street and the north entrance to Cedar View Circle and east 80 feet and west 80 feet from this point along the shoreline and extending 110 feet north into the lake shall be operated at a speed not greater than 5 miles per hour.
3. 37.40(3)  Floyd County waters. All vessels operated in a designated zone extending 300 feet upstream from the upper dam shall be operated at a speed not greater than 5 miles per hour. The city of Charles City shall designate and maintain the 5 miles per hour speed zone with marker buoys approved by the commission.

4. 37.40(4)  Mitchell County waters. Operation of vessels in Mitchell County is restricted to speeds not greater than 5 miles per hour where a speed zone is designated by buoys on the following impounded waters:

   1. a. Cedar River from Mitchell Dam, thence upriver to the County “S” bridge.
   2. b. Cedar River from the St. Ansgar Mill Dam, thence upriver to the Newberg Bridge crossing Highway 105.
   3. c. Cedar River from the Otranto Dam upriver to the Great Western Railway Bridge crossing the Cedar River.
   4. d. The Stacyville Pool, on the Little Cedar River at Stacyville.

[ARC 9219C, IAB 5/14/25, effective 6/18/25]