Iowa Demonstration Project: Massena IA-92 Bridge Replacement Project

As part of a national initiative sponsored by the Federal Highway Administration under the Highways for LIFE program, the Iowa Department of Transportation (DOT) was awarded a $400,000 grant to demonstrate the use of proven, innovative technologies, including lateral bridge slide and prefabricated bridge element systems (PBES), to deliver this $2.0 million project in less time and with less impact to motorists than conventional construction. The project consisted of replacing the Iowa Highway 92 bridge (Maint. No 1563.4S092) over a small natural stream, 1 mile west of Iowa Highway 148. The replacement bridge was designed to increase the structural capacity of the bridge, improve roadway conditions, and enhance user safety by providing a wider bridge and approaching roadway. This project focused on implementation of an accelerated bridge construction (ABC) policy and first-time use of the demonstrated innovative construction methods. This was the first lateral bridge slide project in the State of Iowa. The project was let on April 16, 2013 using a design-bid-build contract, and the winning bid amount was $1.3 million. The project involved three phases: 1) construction of the bridge structure off-alignment, 2) the bridge slide-in, and 3) revetment, grading, and clean-up. The replacement structure was a single-span 120-foot by 44-foot bridge with cast-in-place abutment footings, precast wingwalls, and a precast superstructure fabricated adjacent to the existing bridge and moved into position by lateral slide. The ABC approach resulted in a full closure of 9 days with no incentives or disincentives awarded to the contractor at the end of this project. A 12.89 mile detour was utilized during the full closure, thus resulting in an out-of-distance mileage of 6.89 miles. To estimate the cost savings for the ABC method, the total costs were computed for both the as-built bridge and a baseline (cast-in-place) scenario by adding the agency costs and user costs. The results indicated a cost savings of around 43 percent over the baseline scenario, mainly attributable to the significantly reduced user costs of the as-built project.

• Record URL:
  http://www.fhwa.dot.gov/hfl/summary/pdf_2/Iowa%20Massena%20Route%2092%20ABC_Draft%20Report_10092014.pdf
• 
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/54118
• Corporate Authors:

  Applied Research Associates, Incorporated

  100 Trade Center Drive, Suite 200
  Champaign, IL  United States  61820

  Federal Highway Administration

  Office of Infrastructure
  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Raghunathan, Deepak
  • Sadasivam, Suri
  • Mallela, Jagannath
• Publication Date: 2014-10

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Maps; Photos; Tables;
• Pagination: 62p

Subject/Index Terms

• TRT Terms: Bridge construction; Construction management; Cost effectiveness; Demonstration projects; Design bid build; Prefabricated bridges; Technological innovations
• Identifier Terms: Highways for LIFE
• Uncontrolled Terms: Bridge replacement; Lateral bridge slide
• Geographic Terms: Iowa
• Subject Areas: Bridges and other structures; Construction; Design; Highways; I24: Design of Bridges and Retaining Walls; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01577852
• Record Type: Publication
• Files: NTL, TRIS, ATRI, USDOT
• Created Date: Oct 3 2015 4:11PM