Cone Zone Updates

As of November 1, 2025,  construction activity has slowed for the winter months. Most Cone Zone projects have wrapped up for the season; however, a few remain active. View current updates and traffic impacts for road construction projects and special events below.  Click live links for mapped locations and detailed project information. Active projects will be updated as needed.

Essential services—including mail delivery, trash and recycling collection, and emergency response—will continue throughout each project. Residents and businesses may still experience large equipment and construction noise.

Motorists and pedestrians are reminded to use caution, reduce speed near work zones, and follow designated detour routes.

UPDATED February 5, 2026

Road and Utility Work:

Denver Steels Phase II Improvement Project Updates:

Construction activity for the week of February 09, 2026

Spear D will continue working on Ridgeway Drive and 35th Street.

NOTE: Vehicles shall be removed from these roads during construction activities. (7 a.m. to 6 p.m., Monday through Friday)

Construction Operations:

- Ridgeway Dr. (between 37th St. and 35th St.)

    · Crews will continue excavating for water line services and broadband.

    · Crews will begin removing sidewalk, curb and gutter.

- 35th St.

    · Crews will continue potholing and trenching for water lines.

Traffic Control:

· During construction, road closures, lane restrictions, and detours will be in place.

· Follow all work zone signs and exercise caution.

· Access to residents will be maintained.

All questions and concerns should be sent to:

Public Works Department at lacpw@losalamosnm.gov, or call 505-662-8150

Department of Public Utilities at CustomerCare@losalamosnm.gov, or call 505-662-8333

For additional project details, visit the webpage:

Denver Steels Phase II Improvements Project

Crosswalk Installation on North Mesa Road

Traffic and Streets crews will be installing a crosswalk on North Mesa Road at Hawk Drive and at Terry Lane at North Mesa Road beginning Tuesday, January 13th through 15th at 8:00 a.m. to 2:00 p.m. daily. There will be a flagging operation in place. For more information, contact Anthony Lucero, signs and markings lead, 505-695-3671.

Plumbing Work on Camino Encantado

Anytime Plumbing & Sewer, LLC will be doing scheduled plumbing work that will require a temporary ½-street closure of Camino Encantado between Tecolote Street and Escondido Street beginning January 12 through January 16, weather permitting. The closure will be in effect Monday-Friday from 9 a.m. to 5 p.m., to allow crews to safely complete sewer line repair at the connection to the County main. This work is necessary to improve the sewer lines. Questions may be directed to Anytime Plumbing & Sewer, LLC at 505-474-4441.

Special Events:

Los Alamos Fire Department Training Activities

LAFD will be conducting Wildland Training at the Los Alamos Reservoir on Tuesday February 10, from 9:00 AM - 5:00 PM. We kindly ask the community to avoid parking near the reservoir entrance, as it may hinder access for our crews and equipment. Thank you for your cooperation and continued support as we train to serve you better.

Ongoing Projects:

Elk Ridge Natural Gas Pipeline Replacement

Hill Apartments: Realignment of 35th Street at Trinity Drive (NM-502)/Pavilion Construction

Dept. of Public Utilities - Pending Road Work:

Work to fix roads damaged in the course of underground utility repairs is pending for the following locations. Work is weather dependent and will be completed over several months.

Learn more about utility work impacting the roadway:

Utility Work Impacting Roadways

Learn more about other projects on the County Projects page:

County Projects