Use of Trenchless Technologies for Comprehensive Asset Management of Culverts and Drainage Structures

Available Documents
Quarterly Report September 2007
Quarterly Report December 2007
Quarterly Report March 2008
Quarterly Report June 2008
Quarterly Report September 2008
Final Report

Primary Investigator

Mohammad Najafi
University of Texas at Arlington
P.O. Box 19308
438 Nedderman Hall
Arlington, TX 76019-0308
Najafi[at]uta.edu

Sam Salem
University of Cincinnati
PO Box 210071
Cincinnati, OH 45221
osalem[at]uc.edu

Project Objective
The main objective of this project is to provide a comprehensive study and decision making procedures for the selection of appropriate trenchless technology methods for construction, renewal, renovation, and maintenance of culverts and drainage infrastructures.

Project Abstract
DOT’s and cities in the US are facing severe and rising needs of renewing heavily deteriorated infrastructure. Further challenges for DOT’s are the wide geospatial distribution of infrastructure assets and environmental exposure. While the challenge is well understood, appreciated and addressed, budget allocations and resources limitations represent a major barrier to a comprehensive asset management program. Culverts have the peculiarity of being characterized as both buried pipes in small diameters with no access and worker entry and larger ones with possibility of manual inspection and repair/renewal. As such, asset management procedures for culverts are a complex issue, and can benefit a great deal from an optimal asset management program that incorporates new trenchless technologies. Trenchless technologies are not disruptive to transportation systems and provide safer construction operations for both workers and the general public. If they are used at appropriate application, they provide a new design life to existing culverts and drainage structures that may double or triple the original design life of these assets. However, trenchless technologies are many and some of these methods are new, and while viable, have little field performance history in culverts and transportation systems. Each method has its own capabilities and limitations, and can be applied in certain existing conditions to be effective. Lacking is a comprehensive multi-scale engineering study that would be conducted for decision making at upper management level. Therefore, this project provides a comprehensive study and decision making procedures for asset management using trenchless technologies to address the construction, renewal, renovation, and inspection of culverts and drainage infrastructures.

Task Descriptions

  1. Review literature and current best practices.
  2. Review factors affecting culvert deteriorations and the selection of appropriate trenchless technology methods.
  3. Review and survey existing trenchless technology methods with potential use for construction, renewal, renovation, and inspection of culverts and drainage infrastructures, and identify capabilities and limitations of each of these methods.
  4. Identify inspection, asset management, and maintenance requirements of culverts and drainage infrastructures using trenchless technology methods.
  5. Determine modification requirements in existing trenchless technologies to be used in culverts and drainage structures.
  6. Collaborate with MDOT and ODOT to establish a database and decision support system for selection of appropriate trenchless technology methods.
  7. Develop course modules for culvert asset management using trenchless technologies using comprehensive engineering and management procedures. This task also includes technology transfer through paper publications and presentations at TRB and national and regional conferences.

Project Information

  • Milestones, Dates: 22 months; project end 8/31/2008
  • Budget: $96,379
  • Student Involvement: Graduate research assistant and undergraduate hourly
  • Modal Orientation: Highway
  • Project ID: 07-15