16 Mar 2022

Crest Road at Gavins Point Dam scheduled to close April 11

The U.S. Army Corps of Engineers, Omaha District announces tentative plans to close Crest Road by the powerplant at Gavins Point Dam, Yankton, South Dakota, April 11 to June 22.

8 Feb 2022

USACE, Omaha District seeks input and comments on Draft Master Plan for Gavins Point Dam and Lewis and Clark Lake Project through April 8, 2022; Public Online Webinars Scheduled

The U.S. Army Corps of Engineers (USACE), Omaha District is seeking public, agency, tribal, and stakeholder comments on the Draft Master Plan and Programmatic Environmental Assessment for Gavins Point Dam and Lewis and Clark Lake through Friday, April 8, 2022.

16 Sep 2021

Generator maintenance will result in water releases through spillway gates at Gavins Point Dam

Maintenance on the generators at Gavins Point Powerplant near Yankton, South Dakota, will result in the need to release water through the spillway gates through Sept. 30.

31 May 2021

Gavins Point spillway flow forecast during archery paddlefish season

Completion of work being done on a generator at Gavins Point Dam, near Yankton, SD, will allow spillway gates to be closed near the start of archery paddlefish season. The work, which included repairs on the turbines, will be completed ahead of schedule on May 31. As soon as the generator has been checked, and is cleared to return the service, the spillway gates will be closed. Pending any unforeseen problems, the unit is expected to be returned to service on Thursday, June 3rd.

21 May 2021

Crest Road Closed Monday, May 24 for maintenance

The road that crosses Gavins Point Dam near Yankton, South Dakota, also known as Crest Road, will be closed Monday, May 24 from 8 a.m. to 12 p.m. for maintenance. People are asked to take alternate routes during the closure.

7 May 2021

Gavins Point Dam powerplant generators will be shut down for inspection

The U.S. Army Corps of Engineers, Omaha District announces that all three generators at the Gavins Point Dam powerplant near Yankton, South Dakota, will be shut down to allow for the underwater inspection of the draft tube gate slots on the downstream side of the powerplant. During this outage, all 14 spillway gates will be open to meet the authorized purposes downstream.

29 Mar 2021

Construction project begins below Gavins Point Dam

YANKTON, S.D. – A large construction contract has begun in the area below Gavins Point Dam along Lake Yankton. The project is to connect relief wells, which are at the bottom, or “toe” of the dam, that are designed to relieve excess water pressure on the earthen structure. There are 75 relief wells and numerous discharges into Lake Yankton. Of those 75 relief wells, 31 will be connected into three main discharges. This will allow for a more controlled discharge. Once the main discharges are installed, the ground will be backfilled with dirt to cover the discharge pipes and prevent any erosion.

26 Mar 2021

Construction project begins below Gavins Point Dam

A large construction contract has begun in the area below Gavins Point Dam, along Lake Yankton, near Yankton, SD. The project is to connect relief wells, which are at the bottom, or “toe” of the dam, that are designed to relieve excess water pressure on the earthen structure.

8 Feb 2021

Crest Road to close Feb. 9 for maintenance

The U.S. Army Corps of Engineers, Omaha District announced that Crest Road, which crosses Gavins Point Dam near Yankton, South Dakota, will be closed Feb. 9, from 9 a.m. to 12 p.m. for maintenance. People are asked to take an alternate route during the closure.

3 Feb 2021

Spillway gate and generator maintenance will cause water releases throughout October’s paddlefish season

Anglers in the area for paddlefish snagging season will have some short disruptions due to spillway gate maintenance at Gavins Point Dam, near Yankton, SD, through October 16. The maintenance will require water to flow from a single gate several times a day for 10-15 minutes at a time. Beginning October 19, when upgrades are scheduled for generators, multiple spillway gates will remain open 24 hours a day.