Girder Installation to Close I-25 at 84th Avenue Next Week

“With the northern portion of the bridge complete, we are now focusing on constructing the center portion of the new bridge,” said CDOT Project Engineer Bryan Kalliokoski.  “Since we will be installing girders over I-25, it is essential for the safety of the traveling public that we completely close the Interstate as well as 84^th Avenue.”

To complete the work, the following lane closures will be in place:

• Southbound I-25 near 84^th Avenue: One lane of southbound I-25 will be closed at 7 p.m. with all lanes closing at 11 p.m. All lanes will reopen by 5:30 a.m. on Tuesday. Detour: Motorists will be detoured via the on and off-ramps at 84^th Avenue.  Uniformed traffic control will be on site to direct motorists through the work zone.
• Northbound I-25 near 84^th Avenue: All lanes of northbound I-25 will be closed from 12:30 a.m. (Monday into Tuesday) until 5:30 a.m. on Tuesday. Detour: Motorists will be detoured via the on and off-ramps at 84^th Avenue. Uniformed traffic control will be on site to direct motorists through the work zone.
• 84^th Avenue over I-25: All lanes of eastbound and westbound 84^th Avenue will be closed from 9 p.m. on Monday until 5:30 a.m. on Tuesday. Detour: Motorists on westbound 84^th Avenue can take Washington Street north to Thornton Parkway. Take Thornton Parkway west to Huron Street and Huron Street south to 84^th Avenue. Motorists one eastbound 84^th Avenue will take Huron Street north to Thornton Parkway. Take Thornton Parkway east to Washington Street and Washington Street south to 84^th Avenue.

Major delays are possible on I-25 and 84^th Avenue and alternate routes are strongly advised.  Motorists can take either Huron Street or Washington Street to 104^th Avenue to avoid the construction zone.  CDOT would like to remind motorists to obey all construction signs and flaggers and to “Slow for the Cone Zone.”

This work is part of a project that replaces the 84^th Avenue bridge over I-25.  The original bridge was constructed in 1959 and is one of Colorado’s poor bridges. The new bridge will be wider to accommodate an additional left turn lane from eastbound 84^th Avenue to northbound I-25. In addition, there will be 10-foot sidewalks on each side of the bridge to improve pedestrian and bicycle safety.

Zak Dirt, Inc. is the contractor for this $8 million project scheduled to be complete by the end of October 2012. The majority of the project is being funded by the Colorado Bridge Enterprise, which uses a small portion of vehicle registration fees to repair or replace poor bridges.  The City of Thornton is funding the architectural enhancements such as the decorative lighting and bridge monuments.

For more information about the project, visit the project website at http://www.coloradodot.info/projects/84thAve_I25.  To receive e-mail updates about the project, visit www.coloradodot.info and click on the icon in the upper right-hand corner.  The link will take you to a list of items you can subscribe to including the “84^th Avenue over I-25” project listed under “Projects.”