Navajo Dam lane closure

DURANGO, COLO. -New Mexico Highway 511 over Navajo Dam, located about 45 miles east of Farmington, New Mexico, will be closed to two-way traffic Jan. 13 to May 20.

Temporary traffic signals will be installed to manage alternating one-way traffic through the closure zone to ensure safety and maintain traffic flow. Motorists are advised to expect minor delays, obey posted signage, and follow the direction of traffic signals and crews on site. Reclamation intends to re-open the road to two-way traffic before peak recreation season in the area beginning in late May.

The lane closure is necessary for maintenance crews to continue exploratory drilling efforts which began in 2024 to gather geotechnical data on Navajo Dam as part of Reclamation's Safety of Dams Program. Under this program, Reclamation completes annual inspections and studies to identify potential issues that may lead to corrective action. While all dams have seepage, there has been an increase in the amount of seepage at Navajo Dam over the years which has led to the need for the current exploratory work there.

Reclamation wants to target the source of the seepage and evaluate if new state-of-the-art practices that were unavailable at the time of construction will address the seepage issue.

Project updates will be available on our Navajo Reservoir web page. Road closure information is also available on New Mexico's Department of Transportation website.