Riverwalk Red Multi-Use Trail Bridge Elevating

Riverwalk Red Multi-Use Trail Bridge over Des Moines River

Description

The Principal Riverwalk Red Multi-Use Trail Bridge over the Des Moines River, a former railroad bridge, is a hydraulic constriction and a controlling element of the regulatory flood profile. This project includes raising the bridge 4.5 feet to gain additional hydraulic capacity, which will result in a drop in the regulatory flood profile, allowing water to flow more easily and quickly downstream, thus reducing the risk of flooding in downtown Des Moines and upstream.

Schedule

May 23, 2016 – City Council Award of Construction Contract
Fall 2016 – Start Construction
Late May / Early June of 2017 – Construction Complete and Bridge Open

Resources

Detour Riverwalk Red Multi-Use Trail Bridge Elevating

Webcam (static refresh)

Contractor:

Cramer & Associates, Inc.
3100 SW Brookside Drive
Grimes, Iowa 50111

Questions?

Please contact us by email or call (515) 283-4920.

Project Updates (6)

The Red Bridge is Open!
by Tim Brady on June 16, 2017

The Red Bridge is Open!

Principal Riverwalk Red Multi-Use Trail Bridge over the Des Moines River is now open to trail users.  Work is substantially complete with only minor work remaining, including stair lighting and additional railing.  Trail users will notice there are new stairs and ramps at each end of the bridge to meet the elevated bridge (4.5 feet higher).  The new stair railing will have LED lights when complete.

Red Bridge Elevating Time-Lapse Video
by Tim Brady / Steven Naber on March 06, 2017

Below is a link to a time-lapse video of the Red Bridge raising:

https://drive.google.com/open?id=0B9Te9JRPbm3PNHJlT1AtYlRYNjg

Red Bridge is 4.5 Feet higher
by Tim Brady / Steven Naber on March 03, 2017

As of March 1, 2017 the Red Bridge is resting on its new supports 4.5 feet above the original piers. The west end span has been reattached for access to install new LED lights and outlets throughout the bridge. Work continues on the east side connection and the last bridge span should be placed by the middle of March. Building new approaches on each end will then begin the last week of March with opening still on schedule before this summer.

CLICK HERE FOR PHOTO

 

Below is a link to a time-lapse video of the Red Bridge raising:

https://drive.google.com/open?id=0B9Te9JRPbm3PNHJlT1AtYlRYNjg

 

Final Red Bridge Raise Scheduled for Friday, January 27th (Weather Permitting)
by Steven L. Naber on January 25, 2017

Final Red Bridge Raise Scheduled for Friday, January 27th (Weather Permitting)

CLICK HERE FOR PHOTOS

As of January 25th, the Red Bridge has been raised about 4 feet.  The remaining and final 6 inches of raising is scheduled for this Friday, January 27th (weather permitting).  Approximately 30 hydraulic jacks in total, each with the lifting capacity of approximately 55 tons (note:  a typical car jack has a lifting capacity of 1.5 to 3 tons), are used to raise the bridge along with the use of cranes.

12/8/2016 Red Bridge Raising Starting This Month
by Tim Brady / Steve Naber on December 08, 2016

12/8/2016 Red Bridge Raising Starting This Month

CLICK HERE FOR PHOTOS

Cramer& Associates Inc. is planning to start raising the bridge this month (targeting next week weather permitting). This process takes approximately a month and half, once started.  By the end of January the bridge should be 4.5 feet higher.

The two end spans have been lifted off their bridge seats with cranes and set on shoring alongside the bridge.  The other four spans will be raised 14 inches with hydraulic jacks then blocking will be installed, reposition the jacks and then the process will start over till the bridge is raised the required 54 inches (4.5 feet).  The bridge will be raised by utilizing cranes and hydraulic jacks at each pier location.  Currently the structural jacking plates have been installed on piers 3-5.  Once the bridge is raised the piers will be raised 4.5 feet to support the new bridge height with new concrete.

The project also includes new LED lighting and electrical receptacles throughout the bridge. In the spring new concrete trail and sidewalk connections will be constructed to meet the new bridge elevation.

Riverwalk Red Multi-Use Trail Bridge will close September 26th
by Steven L. Naber on September 21, 2016 Effective Monday, September 26th, the Riverwalk Red Multi-Use Trail Bridge and the Meredith Trail under the Riverwalk Red Multi-Use Trail Bridge will be closed with a signed detour route. The signed detour uses the Court Avenue bridge, John Pat Dorian Trail, and the Martin Luther King Jr. Parkway bridge (Click Here for map).  The Riverwalk Red Multi-Use Trail Bridge and Meredith Trail under the bridge are expected to be open to users in late spring / early summer 2017.