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Utah Demonstration Project

Rapid Removal and Replacement of the 4500 South Bridge over I-215 in Salt Lake City
Final Report April 2009

4500 South Bridge under construction4500 South Bridge after completed construction

Table of Contents

List of Figures
List of Tables


The purpose of the Highways for LIFE (HfL) pilot program is to accelerate the use of innovations that improve highway safety and quality while reducing congestion caused by construction. LIFE is an acronym for Longer-lasting highway infrastructure using Innovations to accomplish the Fast construction of Efficient and safe highways and bridges.

Specifically, HfL focuses on speeding up the widespread adoption of proven innovations in the highway community. "Innovations" is an inclusive term used by HfL to encompass technologies, materials, tools, equipment, procedures, specifications, methodologies, processes, and practices used to finance, design, or construct highways. HfL is based on the recognition that innovations are available that, if widely and rapidly implemented, would result in significant benefits to road users and highway agencies.

Although innovations themselves are important, HfL is as much about changing the highway community's culture from one that considers innovation something that only adds to the workload, delays projects, raises costs, or increases risk to one that sees it as an opportunity to provide better highway transportation service. HfL is also an effort to change the way highway community decisionmakers and participants perceive their jobs and the service they provide.

The HfL pilot program, described in Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU) Section 1502, includes funding for demonstration construction projects. By providing incentives for projects, HfL promotes improvements in safety, construction-related congestion, and quality that can be achieved through the use of performance goals and innovations. This report documents one such HfL demonstration project.

Additional information on the HfL program is at


This document is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The U.S. Government assumes no liability for its contents or use thereof. This report does not constitute a standard, specification, or regulation.

The U.S. Government does not endorse products or manufacturers. Trade and manufacturers' names appear in this report only because they are considered essential to the object of the document.

1. Report No. 2. Government Accession No. 3. Recipient's Catalog No.
4. Title and Subtitle
Utah Demonstration Project: Rapid Removal and Replacement of the 4500 South Bridge over I-215 in Salt Lake City
5. Report Date
April 2009
6. Performing Organization Code
7. Author(s)
Ahmad Ardani, P.E., Jagannath Mallela, Gary Hoffman, P.E., R.L.S.
8. Performing Organization Report No.
9. Performing Organization Name and Address
Applied Research Associates, Inc.
100 Trade Centre Drive, Suite 200
Champaign, IL 61820
10. Work Unit No.(TRAIS) C6B
11. Contract or Grant No.
12. Sponsoring Agency Name and Address
Office of Infrastructure
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
13. Type of Report and Period Covered
Draft Final Report
May 2007–March 2009
14. Sponsoring Agency Code
15. Supplementary Notes
Contracting Officers Technical Representatives: Byron Lord, Mary Huie
16. Abstract

As part of a national initiative sponsored by the Federal Highway Administration under the Highways for LIFE program, the Utah Department of Transportation (UDOT) was awarded a $1 million grant to demonstrate the use of proven, innovative technologies for accelerated bridge removal and replacement. This report documents accelerated bridge construction (ABC) techniques used to remove and replace the 4500 South Bridge on State Route 266 over Interstate 215 in Salt Lake City over a weekend.

This report includes construction details of the bridge superstructure built offsite on temporary abutments and prefabricated and cast-in-place bridge components and substructure built under the existing bridge without interfering with traffic flow. It also discusses use of a self-propelled modular transporter (SPMT) to remove the old bridge and to replace it with a new one. Under conventional construction, the impact of this project on the traveling public was estimated at 120 days, but with the use of accelerated construction techniques, the impact was reduced to a single weekend for I-215 and 10 days for SR 266.

Using an SPMT and other ABC techniques added approximately $0.81 million to the initial construction cost of the project. However, a more comprehensive economic analysis including user cost savings shows that the project saved road users about $3.24 million (or approximately 36 percent of the total project costs). Because of the success of this project, UDOT has decided to use ABC techniques more routinely on future projects and has set a goal of making ABC standard practice for all bridges by 2010.

17. Key Words
Highways for LIFE, accelerated bridge construction, construction manager general contracting, self-propelled modular transporter, SPMT, innovative construction, economic analysis, prefabricated bridge elements and systems, full lane closure
18. Distribution Statement

No restriction. This document is available to the public through

19. Security Classify. (of this report)
20. Security Classify. (of this page)
21. No. of Pages
22. Price

Form DOT F 1700.7 (8-72)     Reproduction of completed page authorized


The project team would like to acknowledge the invaluable insights and guidance of Federal Highway Administration (FHWA) Highways for LIFE Team Leader Byron Lord and Program Coordinators Mary Huie and Kathleen Bergeron, who served as the technical panel on this demonstration project. Their vast knowledge and experience with the various aspects of construction, technology deployment, and technology transfer helped immensely in developing both the approach and the technical matter for this document. The team also is indebted to Utah Department of Transportation engineers Jim McMinimee, Shana Lindsey, Lisa Wilson and Daniel Hsiao and FHWA Division Administrator Butch Waidelich and ITS and Structural Engineer Russ Robertson for their tireless advice, assistance, and coordination during this project.

Abbreviations and Symbols

AASHTOAmerican Association of State Highway and Transportation Officials
ABCAccelerated Bridge Construction
ADTAverage Daily Traffic
CMGCConstruction Manager General Contracting
dB(A)A-Weighted Decibels
DOT Department of Transportation
FHWAFederal Highway Administration
FY Fiscal Year
HfLHighways for LIFE
IRI International Roughness Index
OBSIOn-board Sound Intensity
OSHA Occupational Safety and Health Administration
PICPublic Involvement Coordinator
PIMPublic Information Manager
SAFETEA-LUSafe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users
SI Sound Intensity
SPMTSelf-propelled Modular Transporter
SRState Route
SRTT Standard Reference Test Tire
UDOTUtah Department of Transportation
VOCVehicle Operational Costs
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Mary Huie
Center for Accelerating Innovation

This page last modified on 04/04/11

United States Department of Transportation - Federal Highway Administration