Cone Zone: Week Of Oct. 7, 2019


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

North Mesa: Alamo, Sioux, San Ildefonso Rd and Tsankawi Street Curb & Sidewalks

GM Emulsion will finish replacing curb, sidewalk, repair valley gutters and driveway aprons along Alamo Road between San Ildefonso Road and Tsankawi Street by 6 p.m. Monday.

Road Striping and Curb Painting: Los Alamos and White Rock

Traffic and Streets crews will be striping roads and curbs on 15th Street, Knecht, Oppenheimer and 20th Street in Los Alamos and Longview Drive and Sherwood Boulevard in White Rock, starting at 9 a.m. Monday and finishing by 3 p.m. each day. Drivers and pedestrians are urged to obey all traffic control devices and maintain a safe distance from the paint striping equipment and crew. 

Pothole Repairs on Deacon Street and Canyon Glen

Traffic and Streets will be repairing potholes along Deacon Street and Canyon Glen starting Monday. Please drive safely and obey all traffic control devices. 

Diamond Drive Lane Closure

Traffic Electricians will be closing the left inside lane on Diamond Drive at the Golf Course cross walk east of 35th Street on one day over the next week to install a pole. Please slow down in the work zone. 

Questions on the above projects? Email or call 505.662.8150. 

Other road construction projects

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

N.M. 502 (Trinity Drive) eastbound and westbound traffic is shifted to the south side of N.M. 502 (Trinity Drive) for the section of roadway between Arroyo Lane and east of Tewa Loop with one lane of travel in each direction. Access to Tewa Loop from N.M. 502 is CLOSED. Motorists should detour at Airport Road to access Tewa Loop. Access to businesses and buildings or parks on the north side of N.M. 502 is being maintained. 

The closure is necessary for the installation of an electrical vault and extension of the waterline and fiber optics line. The work is planned to be completed by Oct. 18, weather permitting.  

The current detours between Knecht Street and Central Avenue are the same: Eastbound N.M. 502 traffic detours onto 4th Street and Central Avenue. After a full stop, motorists turn right (east) and travel through the construction zone to continue eastbound out of Los Alamos on N.M. 502. Westbound N.M. 502 traffic entering Los Alamos and approaching the roundabout construction zone detours onto Central Avenue then west to Knecht Street then left to return to Trinity Drive. 

Project hours are 9 a.m. to 4:30 p.m. Monday through Friday. 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. 

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

No change 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 N.M. 502 Road Reconstruction project. 

Oppenheimer Road Excavation

Marcon Excavating, Inc. continues excavating a section of road near 557 Oppenheimer with a traffic lane shift in this area. The project timeline has been extended and it is now anticipated to wrap up by Oct. 11. Motorists are urged to drive slowly through this work zone and watch for pedestrians.