C.R.S. § 31-25-1212.5

A district has the power to construct, maintain, and operate safety measures that are necessary to allow the municipality to restrict the sounding of locomotive horns at highway-rail grade crossings in compliance with 49 U.S.C. sec. 20153 , as amended, and the applicable rules of the federal railroad administration. The district shall construct, maintain, and operate the safety measures in accordance with the provisions of section 40-4-106 , C.R.S., and the standards of safety prescribed by the public utilities commission pursuant to section 40-29-110 , C.R.S.