cost per mile gravel road construction
Sherburne Countyâs road maintenance figures show that costs to keep up gravel roads far outweigh those to keep up bituminous. From 2005 to 2009 the county spent $43,411.23 in maintenance costs on just over 23 miles of gravel county roads. But over the same period of the time the county only spent $27,293.13 in maintenance costs on 2,028.6 miles of paved road. Using those figures, it cost the county about $1,887.44 per mile of gravel road that needed maintenance and about $13.45 per mile for maintenance on bituminous.