Given the high percentage of deteriorated or obsolete bridges in the national bridge inventory, the reuse of bridge foundations may be a viable option that can present a significant cost savings in bridge replacement and rehabilitation efforts. The potential time savings associated with foundation reuse can, in turn, reduce mobility impacts and increase the economic viability and sustainability of a project.
However, existing foundations may have uncertain material properties, geometry, or details that impact the risks associated with reuse. Unlike a new foundation, an existing foundation may have been damaged, may not have sufficient capacity, and may have limited remaining service life due to deterioration. Assessment of these issues as well as foundation strengthening and repair measures and innovative approaches to optimize loading are discussed in this report.
To better demonstrate the engineering assessment of key integrity, durability and load carrying capacity issues, the report contains fifteen 15 case examples where foundation was reused by the owner agencies.
On new construction, the report looks ahead and includes discussions on foundation design with consideration for reuse. Cheryl Allen Richter, P.
Director, Office of Infrastructure Research and Development. This document is disseminated under the sponsorship of the U.
Mod-01 Lec-21 Well Foundation
Department of Transportation in the interest of information exchange. The U. Government assumes no liability for the use of the information contained in this document. Government does not endorse products or manufacturers.
Trademarks or manufacturers' names appear in this report only because they are considered essential to the objective of the document. The Federal Highway Administration FHWA provides high-quality information to serve Government, industry, and the public in a manner that promotes public understanding.
Well Foundation Problems at Brahmaputra Bridge at Tezpur
Standards and policies are used to ensure and maximize the quality, objectivity, utility, and integrity of its information. FHWA periodically reviews quality issues and adjusts its programs and processes to ensure continuous quality improvement. Foundations of existing highways and over-river bridges may have significant functional value.
Hence, reuse of foundations of existing bridges during reconstruction or major rehabilitation can result in significant savings in costs and time. The report includes numerous case examples on reuse of bridge foundations in the U.
Types of Work
These case examples also present a detailed process followed in resolving integrity, durability and capacity issues encountered during the reuse process, and will serve as a knowledgebase for transportation agencies interested in reusing bridge foundations. Planning for reuse during the construction of a new bridge is a very important sustainability initiative that has also been addressed in this manual.
This document is not meant to be used as a guideline; only as decision-making tool in addressing technical challenges and risk in reusing bridge foundations. Foundation reuse, substructure reuse, accelerated bridge reconstruction, integrity assessment, durability assessment, capacity assessment, substructure strengthening.
Notice This document is disseminated under the sponsorship of the U. Topics: research, infrastructure, structures Keywords: research, structures, Foundation reuse, substructure reuse, accelerated bridge reconstruction, integrity assessment, durability assessment, capacity assessment, substructure strengthening TRT Terms: research, infrastructure, Facilities, Structures Scheduled Update: Archive - No Update needed.
Component Parts of a Well Foundation
This report is an archived publication and may contain dated technical, contact, and link information. Performing Organization Code. Author s Agrawal, A. Performing Organization Report No.
Contract or Grant No. Type of Report and Period Covered. Sponsoring Agency Code.
Abstract Foundations of existing highways and over-river bridges may have significant functional value. Key Words Foundation reuse, substructure reuse, accelerated bridge reconstruction, integrity assessment, durability assessment, capacity assessment, substructure strengthening.
Distribution Statement No restrictions. This document is available to the public. Security Classification of this report Unclassified. Security Classification of this page Unclassified.