Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
New Priorities for Bridge Rehabilitation: Leading the Way in Louisiana
This paper describes Louisiana’s new and innovative approach to prioritizing rehabilitation efforts for the state’s population of 4,500 bridges. Historic bridges were identified and selected for preservation on the state or local system based on their condition, function, and rehabilitation potential. The project outcome focuses the state’s efforts on bridges that can thrive into the future and are important to community and engineering heritage. With guidance from consultants at Mead & Hunt, the Louisiana Department of Transportation and Development (LADOTD) and project partners narrowed the focus to 150 historic bridges. The results positively affect bridge owners and consultants in the state by streamlining 97% of bridge projects and providing clear direction on how to progress with the 3% of bridges that are historically significant. Applying an innovative approach that grades bridges based on their condition, function, and rehabilitation potential, each historic bridge was categorized for future treatment as follows:
Preservation Priority—Historic bridges identified as most suitable for preservation.
Preservation Candidate—Intermediate group of historic bridges with certain deficiencies that may have preservation potential if further analysis deems it feasible and prudent.
Non-Priority—Historic bridges with relatively poor potential for preservation based on their present condition. Bridges in this category are not precluded from future preservation but may require greater effort to keep the bridge in vehicular use.
Replicable procedures—The Condition Score metric developed for this methodology can be replicated for use by other states with a similar need to set priorities for historic bridges. The score measures a bridge’s geometry, structural capacity, and other safety factors that impact its suitability for continued vehicular use. It is a good predictor of potential for long-term preservation and uses available inspection data, which is supplemented as needed.
New Priorities for Bridge Rehabilitation: Leading the Way in Louisiana
This paper describes Louisiana’s new and innovative approach to prioritizing rehabilitation efforts for the state’s population of 4,500 bridges. Historic bridges were identified and selected for preservation on the state or local system based on their condition, function, and rehabilitation potential. The project outcome focuses the state’s efforts on bridges that can thrive into the future and are important to community and engineering heritage. With guidance from consultants at Mead & Hunt, the Louisiana Department of Transportation and Development (LADOTD) and project partners narrowed the focus to 150 historic bridges. The results positively affect bridge owners and consultants in the state by streamlining 97% of bridge projects and providing clear direction on how to progress with the 3% of bridges that are historically significant. Applying an innovative approach that grades bridges based on their condition, function, and rehabilitation potential, each historic bridge was categorized for future treatment as follows:
Preservation Priority—Historic bridges identified as most suitable for preservation.
Preservation Candidate—Intermediate group of historic bridges with certain deficiencies that may have preservation potential if further analysis deems it feasible and prudent.
Non-Priority—Historic bridges with relatively poor potential for preservation based on their present condition. Bridges in this category are not precluded from future preservation but may require greater effort to keep the bridge in vehicular use.
Replicable procedures—The Condition Score metric developed for this methodology can be replicated for use by other states with a similar need to set priorities for historic bridges. The score measures a bridge’s geometry, structural capacity, and other safety factors that impact its suitability for continued vehicular use. It is a good predictor of potential for long-term preservation and uses available inspection data, which is supplemented as needed.
New Priorities for Bridge Rehabilitation: Leading the Way in Louisiana
Rathke, John (Autor:in) / Squitieri, Amy (Autor:in)
Structures Congress 2015 ; 2015 ; Portland, Oregon
Structures Congress 2015 ; 414-425
17.04.2015
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
New Priorities for Bridge Rehabilitation: Leading the Way in Louisiana
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