Grand Canyon Drive slurry seal project update
Published on July 22, 2026
Los Alamos County Public Works will start construction on Grand Canyon Drive on Tuesday, July 28, weather permitting. This project includes applying a slurry seal to Grand Canyon Drive, from Meadow Lane to NM 4, extending from shoulder to shoulder.
Slurry seal is a cost-effective pavement preservation treatment used to extend the service life of structurally sound asphalt roadways. Unlike major roadway reconstruction, slurry seal is a preventative maintenance treatment that helps protect pavement from oxidation and moisture intrusion while restoring surface texture and improving skid resistance. The slurry seal consists of a carefully proportioned mixture of polymer-modified asphalt emulsion, well-graded fine crushed aggregate, mineral filler, and water.
Grand Canyon Drive was assessed as part of the County's Pavement Preservation Program and identified as an ideal candidate for the slurry seal treatment to maximize the lifespan of the existing pavement and reduce future maintenance costs.
Construction Operations
Construction activities are scheduled to occur Tuesday through Friday, from 7 a.m. to 5 p.m. Freshly applied slurry seal requires approximately 3 to 4 hours to cure before vehicles can safely travel on the surface. Motorists are asked to obey all traffic control devices and avoid driving on freshly sealed pavement until it has reopened.
July 28: Crews will begin at Meadow Ln. and work west on the eastbound lane on Grand Canyon to Rover Blvd.
July 29: Crews will continue from Rover Blvd. to NM 4.
July 30: Crews will begin at NM 4 and work east on the westbound lane to Rover Blvd.
July 31: Crews will continue from Rover Blvd. to Meadow Ln.
Meadow to Rover
Rover to NM-4
Traffic Control
Motorists should expect temporary lane closures, reduced speeds, and minor delays throughout the project. Parking on Grand Canyon Dr. will also be restricted during the project phases. Traffic control personnel and signage will be in place to safely guide vehicles through the work zone. Public Works appreciates the community's patience and cooperation while this important pavement preservation project is completed.
Please continue to check the Cone Zone on the Alerts and Current Conditions page for the latest updates on road work and construction projects. Visit the Atomic City Transit website for the most up-to-date information regarding transit routes. For additional information or questions, please contact the Los Alamos County Public Works Department at lacpw@losalamosnm.gov, or call 505-662-8150.
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