Design Data: Hydraulics of Circular Culverts (12" through 24" diameter pipe)
Culvert structures represent a significant portion of total highway construction costs. If each culvert installation is considered separately, a proper perspective of relative costs may not be readily apparent. However, if the overall highway drainage field is considered, it is found that drainage facilities represent 17.5% of the total $8 billion annual expenditure for new highway construction.
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