231.8 Bridge Width: Difference between revisions
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Bridge width will vary based on project scope, context of surrounding road and future plans for the route. Project scope and bridge economics usually determine the treatment strategy for individual projects. Treatment strategies range from rehabilitation to rehabilitation and widening to complete replacement. Bridges over | Bridge width will vary based on project scope, context of surrounding road and future plans for the route. Project scope and bridge economics usually determine the treatment strategy for individual projects. Treatment strategies range from rehabilitation to rehabilitation and widening to complete replacement. Bridges over 1000 ft long require full width shoulders so that disabled vehicles can be accommodated. | ||
'''Major Roads''' | '''Major Roads''' | ||
The desirable width of bridges on Major roads includes the traveled lanes and shoulders. The minimum width of bridges for Major roads is | The desirable width of bridges on Major roads includes the traveled lanes and shoulders. The minimum width of bridges for Major roads is 24 ft., that is, there could be situations where an existing bridge may be rehabilitated and used in place even though it may not be the desirable width. | ||
'''Minor Roads''' | '''Minor Roads''' | ||
The desirable minimum width of bridges on Minor roads includes the traveled lanes and | The desirable minimum width of bridges on Minor roads includes the traveled lanes and 2 ft. shoulders. For routes with 10 ft. lanes, the bridge width to strive for is 24 ft. and for routes with 12 ft. lanes, the desirable width is 28 ft. | ||
[[category:231 Typical Section Elements for Roadways|231.08]] | [[category:231 Typical Section Elements for Roadways|231.08]] | ||
Revision as of 10:11, 1 April 2010
Bridge width will vary based on project scope, context of surrounding road and future plans for the route. Project scope and bridge economics usually determine the treatment strategy for individual projects. Treatment strategies range from rehabilitation to rehabilitation and widening to complete replacement. Bridges over 1000 ft long require full width shoulders so that disabled vehicles can be accommodated.
Major Roads
The desirable width of bridges on Major roads includes the traveled lanes and shoulders. The minimum width of bridges for Major roads is 24 ft., that is, there could be situations where an existing bridge may be rehabilitated and used in place even though it may not be the desirable width.
Minor Roads
The desirable minimum width of bridges on Minor roads includes the traveled lanes and 2 ft. shoulders. For routes with 10 ft. lanes, the bridge width to strive for is 24 ft. and for routes with 12 ft. lanes, the desirable width is 28 ft.