11 Mar 2026

Join USACE water managers for public meetings on Missouri River system operations

After a season of virtual-only updates, USACE Missouri River water managers look forward to meeting with members of the public in person this spring. The public is invited to join the U.S. Army Corps of Engineers and local weather experts for a series of briefings on the 2026 runoff season, reservoir status, and our planned operations for the year ahead.

5 Mar 2026

Dry outlook persists for Missouri River despite early spring runoff; Navigation support to begin mid-March

Warm February temperatures triggered early snowmelt and runoff in the Missouri River Basin above Sioux City, Iowa, but the overall 2026 runoff forecast remains well below average. February runoff was 1.3 million acre-feet, 113% of average. Despite this above average runoff in the Garrison, Oahe, and Gavins Point reaches, the full-year runoff forecast above Sioux City, Iowa is 20.6 MAF, 80% of average.

23 May 2019

Lewis and Clark Visitor Center will be closed Tuesday, May 28

The Lewis and Clark Visitor Center, near Yankton, South Dakota, will be closed on Tuesday, May 28, to remove a portion of an interior wall that sustained water damage.

13 Jul 2017

Annual Gavins Point Project Duck Blind Permit Applications accepted now through August 16

The 2017 Annual Lewis and Clark Lake Duck Blind Permit application period is now open through August 16, 2017. Applications are available online or may be picked-up in person at the Lewis and Clark Visitor Center located at 55245 Highway 121, Crofton, Nebraska.

30 Mar 2017

Boaters at Gavins Point Project reminded of Nebraska Non-Resident AIS Stamp Requirement

Non-resident boaters that launch vessels in Nebraska waters below Gavins Point Dam near Yankton, SD are reminded they will need a Nebraska Aquatic Invasive Species Stamp before entering the water.

30 Mar 2017

Duck blinds must be removed by May 1, 2017

Duck blinds permitted by the U.S. Army Corps of Engineers on Lewis and Clark Lake near Yankton, SD must be removed by May 1, 2017

28 Mar 2017

Lewis and Clark Visitor Center will be closed the morning of Thursday, March 30.

The Lewis and Clark Visitor Center near Yankton, SD will be closed on Thursday, March 30 from 8 a.m. through 11 a.m.

18 Mar 2016

Changes coming to overnight camping at Lewis and Clark Lake near Yankton, SD

Fees and reservation changes are coming to the Nebraska Tailwaters and Cottonwood camp sites operated by the U.S. Army Corps of Engineers at Lewis and Clark Lake near Yankton, SD.

6 Apr 2015

Lewis and Clark Visitor Center will be closed April 7 and 8

The Lewis and Clark Visitor Center near Yankton, SD will be closed on Tuesday, April 7 and Wednesday, April 8th.