- T.K. Kramascz
MnDOT Metro District
Office of Communications
1500 County Rd B2 West
Roseville, MN 55113
Maryland Avenue Bridge Move: Two sections placed in short order
Built alongside I-35E, the 1,300-ton spans were moved into place using new construction technology
ST. PAUL, Minn. —The Minnesota Department of Transportation used a giant automated machine called a Self-Propelled Modular Transporter to move a finished bridge into position.
A first for MnDOT, the move took place Aug. 18 over Interstate 35E in St. Paul at the Maryland Avenue Bridge site where crews have been working all summer long building the bridge deck and structure on the west side of the roadway.
The new bridge was moved into position in two sections, with both sections in place at 8:30 p.m. that same day. MnDOT has posted a time-lapse view of the move on You Tube at http://www.youtube.com/watch?v=6CcaqOZil1w.
Saturday’s event was a pilot demonstration of SPMT technology that has cut the duration of highway construction-related road closures in Utah and Arizona nearly in half. As a result, MnDOT has shaved about two months from road closures in St. Paul.
“Using technology like this improves quality of life in our state. With traditional construction methods the Maryland Bridge would have been closed for twice as long, nearly four months. Instead, the closure will be reduced to about 60 days,” said MnDOT Commissioner Tom Sorel.
Sorel said the Maryland Avenue project will achieve federal performance goals of reducing congestion due to construction and enhancing safety for motorist and workers.
“MnDOT works hard every day to be a global leader in transportation. Using innovative construction methods such as the technology on display this past weekend supports our vision and demonstrates our commitment to innovation,” said Sorel.
Crews have additional work to complete before the bridge opens to traffic in mid-September.
More information about the I-35E Maryland Avenue Bridge project is available at http://www.dot.state.mn.us/metro/projects/35estpaul/maryland.html.