CO NP ROMO 407(1) Holzwarth Culvert

Description: The Central Federal Lands Highway Division plans to replace the deficient Holzwarth Culvert on Holzwarth Access Road in Rocky Mountain National Park with a steel girder bridge. The work includes removing the existing six-barrel culvert, constructing a cast-in-place concrete deck with new abutments and micropiles, providing temporary stream diversion and riprap, improving roadway surfacing, and relocating electrical and historic head-gate features. The estimated project value is $700,000 to $2,000,000, with advertisement anticipated in September 2026 and responses due September 9, 2026.