US Army Corps of Engineers
Walla Walla District Website

Lower Granite Dam


General InformationType of Recreation: Day-Use
State: Washington
County: Garfield
Administering Office: Lower Granite Natural Resources Office
Location: 35 miles north of Pomeroy, Washington; or 23 miles south of Colfax, Washington, at Snake River Mile 110.
Acreage: 500 Acres



From Clarkston, Wash.: Follow State Hwy 12 West (~20 miles) N on Ledgerwood Rd (~2mi) Continue onto Kirby Mayview Rd (~18mi) Follow signs to Dam (stay R on Kirby Mayview as it turns into N Deadman) Follow road 16 miles to Dam. Visitor Center is on the South Shore. 


From Pullman, Wash.: Hwy 194 SW – Follow signs to Almota and Boyer Park. Follow Lower Granite Rd to Dam. At security gate, dial 2210 for crossing escort.

From state highway 127 - turn east just south of the Snake River on Lower Deadman Creek Road. Proceed 35 miles following the directional signs to Lower Granite Dam. 


Day-Use Area: Restrooms
ADA Accessible
Drinking Water
Fishing (seasonal, according to Washington State regulations)

Visitor Center is closed until further notice 
Fish Viewing Room, Theater, Interpretive Displays & Gift Shop

Outdoor Esplanade (providing picturesque view of Powerhouse, Tailrace, & Navigation Lock)
Guided Tours: Unavailable at this time

(tour guests must be U.S. citizens with picture I.D.s – Closed toed shoes are required)  
May – October: Saturdays & Sundays 10 a.m., 1 p.m. and 3 p.m.  Weekdays by appointment or request.
November – April: Mon – Friday by appointment or request.

Point of Contact: Park Ranger/Tour Guide: 509-843-2214, email

Operating Agency

Name: U.S. Army Corps of Engineers
Address: 100 Fair Street
Clarkston, Washington 99403
Phone: 509-751-0240
Contact: Resource Manager

Distance to Nearest
Hospital: 21 Miles (Whitman Community Hospital, Colfax, Washington, 509-397-3435; or Garfield County Memorial, Pomeroy, Washington, 509-843-1591)
Grocery Store: 2 Miles
Motel: 21 Miles
Restaurant: 2 Miles
Airport: 30 Miles
Auto Mechanic: 21 Miles

Dam Crossing: is available 7 days a week 7 a.m. – 5 p.m. except during some holidays. Extended crossing hours during the summer available Fri, Saturday and Sunday from 7 a.m. – 7 p.m. Please call 1-888-DAMINFO (1-888-326-4636) for the most up to date Dam Crossing Information.


Pets must be kept on a leash. Horses and hunting are prohibited. No open fires allowed. Charcoal and propane fires are acceptable. The Park Ranger can be reached at 509-843-2214.


Contact Us

Lower Granite Natural Resources
Management Office
100 Fair Street
Clarkston,  WA  99403
Phone: 509-751-0240

Lower Granite Visitor Center
Phone:  509-843-2214

water safety