NM-4 is now closed at the main entrance of Valles Caldera National Preserve due to active firefighting activities on the McCauley Springs Fire.
Due to ongoing dry conditions and prevailing high winds, Fire Marshal Colorado Cordova of the Los Alamos Fire Department (LAFD) has elevated fire restrictions to Stage 2, effective May 28, 2026 within the boundaries of Los Alamos County to safeguard public health and safety, as well as protect lands, structures, natural and historical artifacts.
DPU will oversee replacement of approximately 6,700 linear feet of 14" steel pipe installed in 1949 with a new 14" ductile iron pipe along NM-502. The existing 14" steel pipe is aged and deteriorated and experiences regular leaks. This line is a critical transmission line that conveys water from Otowi Well #4 to the Townsite area of Los Alamos.
Budget: Water Trust Board $ 2,500,000
CIP $ 383,500
Total $ 2,883,500