I-55 Improvement from Lindbergh to 4500 South Broadway 

Traffic on the newly opened rebuilt Union Road bridge
The new Union Road bridge officially opened to traffic at 10:45 a.m. Wednesday, December 1, 2010.
News Release: June 3, 2011
MoDOT closes various lanes of Interstate 55 at Union Road June 4, 6-10 for bridge painting
News Release: May 31, 2011
MoDOT closes various lanes of Interstate 55 at Union Road May 31-June 3 for bridge painting
News Release: November 29, 2010
MoDOT opens Union Road bridge at Interstate 55 December 1
News Release: November 15, 2010
MoDOT to close lanes of Interstate 55 in both directions at Union Road for bridge work November 15-19
News Release: November 10, 2010
MoDOT to close lanes of Interstate 55 in both directions at Union Road for bridge work November 12-15
News Release: October 26, 2010
MoDOT to close two lanes of Interstate 55 in both directions at Union Road for bridge concrete work Wednesday
News Release: September 16, 2010
MoDOT closes two lanes on Interstate 55 between Reavis Barracks and Bayless September 16-18
Project Update: September 13, 2010
All lanes of northbound and southbound I-55 are open. There will not be any lane closures today.
News Release: September 8, 2010
MoDOT to close Interstate 55 between Reavis Barracks and Bayless September 10-13
Local detour for I-55 weekend closure (1 page, 158 kb)
News Release: August 19, 2010
MoDOT to close ramp from I-55 to Union Thursday, Friday nights
News Release: July 24, 2010
UPDATE: MoDOT reopens Interstate 55 from River City Boulevard to Broadway ahead of schedule
News Release: July 19, 2010
UPDATE: MoDOT to close Interstate 55 from River City Boulevard to Broadway July 23-25
Weekend closure for demolition of two pedestrian bridges
News Release: July 13, 2010
MoDOT to reopen far left lanes of Interstate 55 from Bayless Avenue to Reavis Barracks Road July 14
News Release Update: July 9, 2010
UPDATE: MoDOT to close northbound Interstate 55 entrance ramp from Union Road beginning July 12
Project Update: July 9, 2010
Due to inclement weather, the closure of the northbound Interstate 55 entrance ramp from Union Road has been postponed. The ramp will remain open through the weekend of July 9-11. A date to close the ramp will be announced in the near future.
Project Update: July 8, 2010
Northbound I-55 entrance ramp from Union Road closes Friday, July 9
The Missouri Department of Transportation and its contractor Fred Weber, Inc., will close the northbound Interstate 55 entrance ramp from Union Road starting at 6 a.m. Friday, July 9, 2010.
The ramp closure is needed for the construction of the new Union Road bridge. Motorists are advised to use the northbound I-55 entrance ramp at Reavis Barracks Road as a detour.
The far left lane on both northbound and southbound Interstate 55 at Union Road will remain closed until mid-July for construction of the new bridge support beams in the median of Interstate 55.

Project Background
The Union bridges over Interstate 55, the pedestrian bridge at Holly Hills and the pedestrian bridge near Delor Street were all built in the early 1960’s. The side- by- side bridges over Union Road have deteriorated beyond the point of simply repairing the bridges and the structures need to be completely replaced. The clearances of the Union bridges over Interstate 55 have also been points of concern and the bridges have suffered damage from trucks striking the bridge supports. The pedestrian bridges near Holly Hills Avenue and near Delor Street has little use due to other pedestrian options in the area, and will be removed.
Project Maps and Information
Fact Sheet (2 pages, 432 kb)
Construction Actions (1 page, 28.0 kb)
Maps (2 pages, 536 kb)
More Facts (1 page, 28.0 kb)
Planned Project Improvements
- Removing and replacing the two Union bridges over Interstate 55. These bridges will be built in the same location with a higher clearance (9”inches higher) over the interstate to meet current Federal Highway standards.
- Removing the pedestrian bridges on Interstate 55 north of Delor and north of Holly Hills.
- Replacement of the existing Interstate lighting along Interstate 55 within the limits of the City of St. Louis.
- Replacement of the signals at Interstate 55 and Loughborough.
Construction Impacts on Union Road and Interstate 55 Drivers
- Union Road between Spring and Hoffmeister will be closed in early 2010 through the end of 2010. The detour for the west side of Union Road (Spring Road side) will be the Bayless Road intersection. The detour for the east side of Union Road (Hoffmeister Road side) will be Reavis Barracks intersection.
- Northbound Interstate 55 on-ramp from Union will be closed during some phases on construction. During the Interstate 55 northbound on- ramp closure, traffic will access Interstate 55 at the Reavis Barracks Road interchange.
- Two Interstate 55 closures will be necessary for this project. The first interstate closure, expected in early 2010, will be for the demolition of the Union Road bridge. The detour for this closure will be Interstate 44 to Interstate 270. The closure for the Union Road demolition will be from Reavis Barracks Road to Bayless. The second Interstate 55 closure,expected in the summer of 2010, will be for the demolition of the pedestrian bridges north of Delor and the Holly Hills pedestrian bridge. The detour for the pedestrian bridge demolition will be Interstate 44 to Interstate 270. The closure for the pedestrian bridge north of Delor span from Bates to Broadway. Both interstate closures are scheduled to begin Friday after evening rush hour and be open to traffic by Monday prior to morning rush hour.
To Contact Us:
Project Manager: Shirley Norris
Phone: (314) 453– 5032
email: shirley.norris@modot.mo.gov
Area Engineer: Kristy Yates
Phone: (314) 565– 5281
email: kristy.yates@modot.mo.gov
Community Relations: Jack Wang
Phone: (314) 453-1809
email: jack.wang@modot.mo.gov