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  • 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.
  • 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.
  • 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.
  • 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.
  • Crest Road Closed Tuesday for maintenance

    Crest Road which crosses Gavins Point Dam near Yankton, South Dakota, will be closed Jan. 12 from 9 a.m. – 2 p.m. for maintenance. People are asked to take alternate routes during the closure. ing the closure.
  • Public scoping period to begin for Gavins Point Dam, Lewis and Clark Lake master plan update; virtual public meeting scheduled

    OMAHA, Neb. – The U.S. Army Corps of Engineers, Omaha District will be hosting a virtual public scoping meeting on Tuesday, Dec. 15, at 6:00 p.m. This meeting will kick off the public scoping and comment period for the update and revision of the Gavins Point Dam, Lewis and Clark Lake master plan.
  • Crest Road closed Tuesday, Dec. 1 for maintenance

    The U.S. Army Corps of Engineers Gavins Point Dam announced that the road that crosses the dam near Yankton, S.D., also known as Crest Road, will be closed Tuesday from 8 a.m. to 12 p.m. for maintenance. People are asked to take alternate routes during the closure.
  • No thru traffic on Crest Road July 9

    The spillway and powerplant road across Gavins Point Dam near Yankton, South Dakota, will be closed from 9 a.m. through 11 a.m. on Thursday, July 9, for maintenance. This will prohibit thru traffic on the road that crosses Gavins Point Dam, also known as Crest Road. People are asked to take alternate routes during the closure.
  • No through traffic on Crest Road Wednesday

    The spillway and powerplant roadway at Gavins Point Dam near Yankton, South Dakota, will be closed Wedensday from 8 a.m. to noon for maintenance. This will prohibit through traffic on the road that crosses Gavins Point Dam, also known as the Crest Road.
  • Proposal for Gavins Point Dam underseepage control measures available for public comment

    The U.S. Army Corps of Engineers, Omaha District, is seeking comments on a draft environmental assessment for a proposal to implement additional underseepage control measures at Gavins Point Dam near Yankton, South Dakota. Comments on the draft EA will be accepted until May 27, 2020.