Los Alamos County to install rumble strips on NM 502 this week
Daytime lane work will slow NM 502 traffic between Los Alamos and White Rock as crews add centerline rumble strips meant to cut crash risk.
Drivers on NM 502 will face daytime work-zone slowdowns starting Tuesday as Los Alamos County begins installing centerline rumble strips on one of the county’s busiest commuter routes. The work is expected to run through the end of the week, with crews on site from 9 a.m. to 3 p.m., and no major detour has been announced.
The Los Alamos County Public Works Department is carrying out the project with the New Mexico Department of Transportation and contractor San Bar Construction. Centerline rumble strips are milled into the pavement to alert drivers with vibration and sound when a vehicle begins to drift out of its lane, a feature transportation agencies use on undivided roads to reduce head-on crashes and opposite-direction sideswipe collisions.
That safety goal matters on NM 502, which carries daily traffic between Los Alamos, White Rock, Pojoaque and the Santa Fe area. Even without a full reconstruction project, the striping work will temporarily change the driving experience on a road locals rely on for commuting, school pickups, deliveries and travel to and from the lab and county facilities. Drivers should expect slower traffic, extra caution near the work zone and the possibility of brief delays while crews are active.
The timing also follows a recent reminder of how quickly conditions on the corridor can turn serious. On May 6, NM 502 was closed in both directions after a head-on collision with injuries near Pojoaque High School. The county’s latest safety work is aimed at preventing the kind of lane departure that can lead to those incidents before they happen.
Federal Highway Administration guidance describes centerline rumble strips as a proven countermeasure on undivided highways, and the U.S. Department of Transportation has placed rumble strips among the safety tools used to reduce roadway fatalities and serious injuries. In Santa Fe County, NMDOT is also pursuing an alignment study for NM 4 from Rover Boulevard to the NM 502 interchange, with safety and traffic operations listed as goals. Together, the projects show an incremental approach to a corridor that remains under close watch by drivers and transportation officials alike.
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