Construction in progress
Aug 25 - Due to heavy rain falls and the high Mississippi River levels in July and August, crews were unable to work on bridge piers. So instead, crews are building the east bridge abutment. Once river levels lower, pier work can resume. Plans are to deliver and place bridge beams in winter.
The project is on schedule.
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Construct piers, abutments
Crews continue to construct bridge abutments and six piers from west to east across the river. Two piers are inland and four are in the river. Cofferdams, made from steel sheet pile are driven into the riverbed and create a dry space to work in the river. Steel pile is driven deep into the earth to help form the foundation for the piers. Then piers are constructed inside the cofferdam.
A temporary road known as a causeway is constructed from the west river bank out into the water to access the worksite. Poster of work stages, details
This work will continue through fall 2016.
The current bridge will remain open to traffic as the new one is built. Motorists may encounter heavy moving vehicles entering or exiting work areas.
When the new bridge is opened to traffic in fall 2017, the old structure will be removed by June 30, 2018.
|Prepare work area||Aug. 15 - Fall 2015|
|Construct six piers, abutments||Fall 2015 - Winter 2016|
|Place beams||Winter 2016-2017|
|Construct bridge deck surface, sidewalks, road and trail connections, aesthetics||Spring - Fall 2017|
|Open to traffic||Fall 2017|
|Remove old bridge and road connections, establish turf or landscape|| Fall 2017 - June 30, 2018,
includes over winter
*The contractor may work year round. Schedule is subject to change.