DOT Announces Rockfall Mitigation Project On NM 502 To Begin Aug. 16 On Main Hill Road


The New Mexico Department of Transportation along with GeoStabilization International (GSI) will begin a rockfall mitigation project on Monday, Aug. 16, (on the Main Hill Road) in the Los Alamos area.

Due to its composition, the existing hillside is subject to rockfalls during rain and snow events which can pose a danger to passing motorists. The project will remove any rocks that are deemed a threat to motorists, under controlled conditions. The project is expected to take 10 working days to complete, weather permitting.

Work will take place from 9 a.m. to 3 p.m., Monday through Friday, and from 8 a.m. to 5 p.m. on Saturdays. Due to the nature of the work, NM 502 will be closed along a 2-mile stretch – from one mile east of Airport Road in Los Alamos to the junction with NM 4 (mile marker 4 to mile marker 6) during working hours. All traffic will be routed onto the truck route into and out of Los Alamos during this time.

Motorists are advised to use caution, obey posted speed limits, expect delays and plan accordingly.