Cone Zone: Week Of July 8, 2019


The Public Works/Traffic Division provides the latest updates on the following projects:

Manhole Repairs – Ponderosa Estates in Los Alamos:

Crews continue adjusting manholes in Ponderosa Estates along Aspen Drive, Sumac Lane and Maple Drive. Work is scheduled to continue through the end of July. The concrete being used is a high strength mix and requires a cure time; therefore, residents are urged to avoid driving over these manholes for the first few days after they are poured. Traffic control will be set up daily in several locations along the project route and residents are urged to use caution when driving through and walking near these work zones. Work hours are 80 a.m. to 5 p.m. Monday through Friday.

Road Striping in White Rock:

Traffic and Streets Division crews are wrapping up striping local roadways in White Rock to replace faded markings for traffic safety. No traffic delays. Please slow down and use caution when crews are working in these areas.

Questions on the above projects? Email, or call 505.662.8150.

Other road construction projects:

N.M. 502 Roundabout and Road Reconstruction (NMDOT project) 

No change to traffic pattern for last week. The contractor continues working on common trench for utilities 9 a.m. to 4:30 p.m. Monday through Friday. Expect delays. The speed limit is reduced to 25 mph. N.M. 502 (Trinity Drive) east-bound traffic is being detoured to 4th Street and Central Avenue. After a full stop, motorists should turn right (east) and travel through the construction zone to continue east-bound out of Los Alamos on N.M. 502. West-bound N.M. 502 traffic entering Los Alamos and approaching the roundabout construction zone is being detoured onto Central Avenue; continue west to Knecht Street (or alternatively, continue to the traffic light at 15th Street) then turn left to return to Trinity Drive. There is only one lane of traffic in each direction on Central Avenue. Please slow down, use caution and expect delays in this area, especially during peak commute times.

Traffic advisories from NMDOT are available on and motorists are asked to check the site for updates on this project as it proceeds.

Manhattan Loop (Near the N.M. 502 Roundabout Project) – Cable Repairs (Cablecom project):

Beginning Monday, Cablecom will be repairing cable behind the sidewalk requiring a full sidewalk closure at 48 Manhattan loop; work continues through Wednesday at the intersection of Canyon and Manhattan loop. Because of the proximity to the N. M 502 project, pedestrians and motorists are urged to use extra caution in this already congested work zone.

TA-21 Clean Up Project – DP Road (N3B project):

No change in truck traffic on DP Road from last week’s report. Clean-up work on the LANL TA-21 Site at the far eastern end of DP Road continues. Large trucks carrying away demolition debris containers will be exiting DP Road at an average of approximately three trucks per day. Motorists are asked to be alert for trucks exiting; use caution when entering or exiting DP Road, as this area is near the NM502 Road Reconstruction project.

Utility/Road Construction Longview Drive in White Rock (Dig It Excavating project):

A portion of Longview Drive will be closed for utility work requiring an asphalt cut, between 117 Longview to 123 Longview, beginning Monday and continuing through Friday. Detour signs will be posted.

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