Iowa. Highway Research Board, & Iowa. Highway Division (1991). Load ratings for secondary bridges (Report No. Project HR-239). Iowa. Dept. of Transportation. Highway Division. https://rosap.ntl.bts.gov/view/dot/23995
Iowa. Highway Research Board and Iowa. Highway Division. Load ratings for secondary bridges. Report no. Project HR-239. Iowa. Dept. of Transportation. Highway Division, 1991. https://rosap.ntl.bts.gov/view/dot/23995.
Iowa. Highway Research Board, et al. Load ratings for secondary bridges. Iowa. Dept. of Transportation. Highway Division, 1991, Report no. Project HR-239, ROSA P. https://rosap.ntl.bts.gov/view/dot/23995.
A load rating states the load in tons which a vehicle can impose on a bridge.
;
Changes in guidelines, standards, and customary uses of bridges require
;
analyses of bridges to be updated and re-evaluated.
;
In this report, twenty-two secondary bridge standards for three types of
;
bridges are rated for the AASHTO HS20-44 vehicle configuration and three
;
typical Iowa legal vehicles.
Iowa. Highway Research Board, & Iowa. Highway Division (1991). Load ratings for secondary bridges (Report No. Project HR-239). Iowa. Dept. of Transportation. Highway Division. https://rosap.ntl.bts.gov/view/dot/23995
Iowa. Highway Research Board and Iowa. Highway Division. Load ratings for secondary bridges. Report no. Project HR-239. Iowa. Dept. of Transportation. Highway Division, 1991. https://rosap.ntl.bts.gov/view/dot/23995.
Iowa. Highway Research Board, et al. Load ratings for secondary bridges. Iowa. Dept. of Transportation. Highway Division, 1991, Report no. Project HR-239, ROSA P. https://rosap.ntl.bts.gov/view/dot/23995.
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