Category:752 Bridges Used In Place: Difference between revisions
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Existing bridges at large stream crossings carrying light traffic may be used in place under certain conditions. Such structures may have less than the desired [[231.8 Bridge Width|bridge width]] or [[751.40 Widening and Repair#751.40.8 Design Information when using AASHTO Standard Specifications for Highway Bridges 17th Edition | | Existing bridges at large stream crossings carrying light traffic may be used in place under certain conditions. Such structures may have less than the desired [[231.8 Bridge Width|bridge width]] or loading capacity (See [[751.2 Loads|Loads]] for LRFD Method or [[751.40 Widening and Repair#751.40.8 Design Information when using AASHTO Standard Specifications for Highway Bridges 17th Edition |Design Information when using AASHTO Standard Specifications for Highway Bridges 17th Edition]] as an option for widening and repair). Where a [[:Category:126 Location Study and Alternatives Analysis|location study report]] does not include a recommendation for the disposition of such structures, the district makes a recommendation, before completing the survey, to the Design Division. Narrow bridges used in place are properly signed with advance warning signs. Guardrail is used at the bridge ends to delineate the width transition. | ||
Latest revision as of 07:07, 2 October 2008
Existing bridges at large stream crossings carrying light traffic may be used in place under certain conditions. Such structures may have less than the desired bridge width or loading capacity (See Loads for LRFD Method or Design Information when using AASHTO Standard Specifications for Highway Bridges 17th Edition as an option for widening and repair). Where a location study report does not include a recommendation for the disposition of such structures, the district makes a recommendation, before completing the survey, to the Design Division. Narrow bridges used in place are properly signed with advance warning signs. Guardrail is used at the bridge ends to delineate the width transition.