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- W2289883334 abstract "The general condition of bridges and culverts on the 66,825 miles of county roads in Indiana is such that a major attack on the solution of this traffic-handicapping problem is now imperative. Many of these bridges were built more than thirty years ago (some wood covered bridges are over seventy-five years old) and of course were not designed to carry the heavy loads to which they are subjected today. In the meantime, because of neglect in periodical painting, the steel structures have be come seriously weakened by rusting. In some cases, because of the use of dirty or unsound aggregates, improper propor tioning of the mix, the use of too much water in the concrete, etc., the abutments and piers have deteriorated rapidly. Too often the footings of the abutments and piers were not carried a sufficient distance below the streambed and the action of subsequent high waters has dangerously undermined these structures and required costly underpinning. Many bridge floors have been so neglected that they present a very serious hazard to traffic. The responsible officials of each county should carefully work out a plan, covering a period of years, for the progressive rehabilitation of these structures, starting with the most urgent cases. 124 PURDUE ENGINEERING EXTENSION DEPARTMENT" @default.
- W2289883334 created "2016-06-24" @default.
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- W2289883334 date "1941-01-01" @default.
- W2289883334 modified "2023-09-27" @default.
- W2289883334 title "County Bridges and Culverts--A Major Problem" @default.
- W2289883334 hasPublicationYear "1941" @default.
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