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Omaha District Lakes and Dams

Gavins Point Dam/ Lewis & Clark Lake

Dam and Powerplant

spillwayGavins Point Dam, part of the 1944 Pick-Sloan Plan, plays an important role in the successful operation of the six main stem dams and reservoirs on the Upper Missouri River basin. The dam was completed in 1957 at a cost of $51 million.

Water released from the five upstream dams is used at Gavins Point Dam for production of hydroelectric power. The Gavins Point Dam generators provide enough electricity to meet the annual needs of 65,000 people. Controlled releases from the dam enhance navigation and minimize erosion on the Missouri River to St. Louis, Missouri. Gavins Point Dam, along with Lewis and Clark lake provide $35 million in benefits to the public annually. These benefits include power generation, flood damage reduction, recreation, navigation support, and fish and wildlife enhancement.

Tours are given Memorial Day through Labor Day from 10:00 AM to 6:00 PM Friday, Saturday, Sunday and Holidays. Special tours can be scheduled by calling 402-667-2546 weekdays between 9:00 AM and 4:30 PM.


QUICK FACTS:
powerplant floorThe Dam
Type - Rolled Earth and Chalk Fill
Height - 74 Feet
Length - 8,700 Feet
Width of Top - 35 Feet
Max. Base Width - 850 Feet
Fill Quantity Cubic Yards - 7,000,000 cubic yards

The Spillway
Crest Length - 664 feet
Gates - 14 tainter
Gate Size - 40x30
Crest Elevation - 1,180 feet m.s.l.

Powerplant
Generating Units - 3
Generating Capacity of each power unit - 44,099 kilowatts

The Lake

  • Drainage above Gavins Point - 279,480 sq. miles
  • Drainage below Fort Randall to Gavins Point 16,000 sq. miles
  • Storage Capacity (max. pool) - 492,000 acre ft.
  • Surface Acres (max. pool) - 31,400 surface acres
  • Length of max. pool - 25 miles
  • Maximum depth - 45 feet
  • Shoreline length - 90 miles

Operating Hours:

Project Office hours

Monday through Friday 7:30 a.m. to 4:00 p.m. CST

Visitor Center

Summer Hours (Memorial Day - Labor Day):

 

Sunday - Thursday - 8 AM to 6 PM
Friday & Saturday - 8 AM to 7 PM

Off-season Hours:

 

Mon- Fri - 8 AM to 4:30 PM
Closed November through March.

Please call 402-667-2546 for more information.

Powerplant Tours

Tours are given Memorial Day through Labor Day from 10:00 AM to 6:00 PM Friday, Saturday, Sunday and Holidays.

Scheduled Tours

Special tours can be scheduled by calling 402-667-2546 weekdays between 9:00 AM and 4:30 PM.

 

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