Accelerated Bridge Construction (ABC)

Kraemer has a long history of successfully implementing Accelerated Bridge Construction (ABC) for transportation and rail projects across the nation.  We are experts in providing innovative planning, design, and construction methods which reduce on-site construction time, impacts to the traveling public and construction cost for new and existing bridges.

Kraemer’s Accelerated Bridge Construction experience includes:

  • Innovative Construction Methods
    • Incremental Launching
    • Superstructure Roll-In
    • Superstructure Slide-In
    • Superstructure Float-In
  • Prefabricated Bridges and Components
    • Precast Bent Caps
    • Precast Columns
    • Precast Abutments
    • Full Depth Precast Deck Panels

Representative Projects Include:

CNR Rainy River Bridge Replacement (Float-In)

Client:       Canadian National Railway
Location:   Baudette, MN

The Rainy River Bridge Replacement project included the replacement of five existing bridge spans, including a swing span with six new 176 foot through truss spans.  Four trusses were erected on temporary platforms and floated into place and two trusses were erected on temporary bents.  Once the new trusses were built and in place on the temporary bents adjacent to the existing bridge, the old spans were floated out and the new spans were rolled into place during three, two-day switch-outs.

CPR Bascule Bridge Replacement (Float-In)

Client:      Canadian Pacific Railway
Location:  La Crosse, WI

The Bascule Bridge Replacement project involved the replacement of a 100 year old swing span over the Black River in La Crosse, Wisconsin.  The 307 foot structure was replaced with a 147 foot single leaf bascule span weighing 500 tons and two 104 foot thru-plate girder spans.  Span replacements were completed in sections by floating-in and floating-out or rolling-in and rolling-out. The new bascule span was operational for marine craft less than 48 hours after the bridge was opened to rail traffic.

RTD Fast Track West Corridor Light Rail Transit Over 6th Avenue (Roll-In)

Client:       Regional Transportation Department
Location:  Lakewood, CO

The RTD Over 6th Avenue project was constructed as part of nine structures for the West Corridor, the first leg of a multi-corridor rapid transit expansion in the Denver metro area, extending from Denver to Golden, Colorado.  This ballasted light rail bridge carries double track service over the 6th Avenue Freeway and is the signature bridge of the West Corridor.  The basket handled arch was constructed on falsework “off-line” and rolled into place utilizing pushing rams in the rear and heavy transports in the front of the structure in a single 36 hour period.

US-6 Clear Creek Canyon Bridge Rehabilitation (Full Depth Precast Deck Panels)

Client:      Colorado Department of Transportation
Location:  Clear Creek Canyon (between Denver, Black Hawk and Central City, CO)

The US-6 project was the fast track reconstruction of the superstructure, rehabilitation of the substructure and full depth deck replacement of three bridges located in Clear Creek Canyon on US-6 in twelve (12) days.

Powers North Design-Build (Precast Deck Panels and Abutments)

Client:      Colorado Department of Transportation
Location:  Colorado Springs, CO

The Powers North design-build project was the accelerated construction of six bridges and one mile of divided four lane highway on SH 21 at Briargate Parkway, Union Boulevard and Pine Creek opening the road to traffic in 118 calendar days.

Page Avenue Tied Arch Bridge (Float-In)

Client:       Missouri Department of Transportation
Location:  St. Louis, MO

Construction of  twin 17-span bridges across the Missouri River as part of the Page Avenue Extension Project relieving congestion on I-70 in St. Louis, Missouri.  Kraemer constructed two, 600-foot-long tied arches for the main bridge spansTo expedite construction, each tied arch was floated into place above the Missouri River’s navigational channel on a falsework tower custom designed by Kraemer.