More than $390 million in road construction projects on state highways will be underway this year in the metro Denver area, with more than a third of the total funded by the federal stimulus program.

Flatiron Construction is the apparent low bidder for repairs to the Interstate 70 viaduct in Glenwood Canyon, which was heavily damaged in the Monday rockslide, the Colorado Department of Transportation announced. The contract is for $860,417, with Flatiron committing to completion in 55 days.

SEMA Construction again completed replacement of an aging steel truss bridge on U.S. 34 in Big Thompson Canyon four days ahead of schedule, reopening the major route between Estes Park and Loveland Thursday night – and completing the $3.8 million project.

The dirt is starting to move in the $40.1 million design-build reconstruction of four miles along Hampden Avenue, starting at the east end of the corridor with replacement of the bridge over Federal Boulevard. Inside Lane takes you on a tour of the job with this video featuring the project managers, plus a slide show.

FasTracks construction of the new Sheridan Boulevard bridge is on schedule – good news for drivers through the two-lane work zone – and the structure may get its first girders next week. View a video of the work here and click on the story for an additional slide show.

Lakewood Edge reports that the public will encounter delays or detours at the Jefferson County government campus on Johnson Road in the coming weeks due to West Corridor light rail construction. Crews moved in Monday to begin operations that include excavation for retaining walls and the parking garage, underground utility relocations, station construction and roadwork. During construction, the bike path just south of the complex will be closed and pedestrians will be re-routed north on Johnson Road to Jefferson County Parkway.

The second full closure of US 34 just east of Estes Park is now scheduled to take place Thursday, March 4, through Monday, March 15, weather permitting. The closure is necessary to allow SEMA Construction to replace the last steel truss bridge on US 34 in the Big Thompson Canyon.

Crews for the Regional Transportation District are scheduled to close one lane in each direction of U.S. 36 between Church Ranch Boulevard and Wadsworth Parkway from 6 a.m. through 9 a.m., Saturday, Feb. 27, to pour the curbs on the deck of the pedestrian bridge.

When reconstructing one of Denver’s major business streets, Concrete Works of Colorado has found it helpful to its client — the city and the taxpayer — as well as the merchants along the South Broadway to move in like a colony of ants and get major pieces done in a day. Inside Lane observed one such day.

The Colorado Department of Transportation will close southbound Interstate 25 through Trinidad on Sunday night, Feb. 28, for construction of the adjacent bridge over the Purgatoire River. Beginning at 7 p.m. on Sunday, Feb. 28, southbound I-25 will be closed at Colorado Avenue (Exit 14B). Traffic will detour west to Colorado Avenue, south on Nevada Avenue to Santa Fe Trail, returning to I-25 at Exit 11. Southbound I-25 will reopen to traffic by 6 a.m. on Monday, March 1.