FOREST SERVICE EXPERIENCE WITH IN-PLACE REDUCTION OF OVERSIZED ROCKS IN UNSURFACED ROADS

The Rocky Mountain Region of the USDA, Forest Service has about 11,100 km (6,900 mi.) of unsurfaced roads in a system totaling 37,400 km (23,225 mi.). Surface maintenance of unsurfaced roads in rocky soils is difficult, yet gravel surfaces or pavements often are not economically justified. A Browning RB-4 traveling hammermill crusher has been evaluated to reduce oversize rocks in place. In several trials in 1976 and 1977, the cost averaged $1,708 per km or $2,750 per mile. Different applications were tried and the most efficient determined. Results were generally satisfactory, but a sizable crew and fleet of supporting equipment are essential. This is not a routine maintenance tool, but rather a heavy maintenance tool approaching reconstruction. Some equipment modifications are suggested. /Authors/

Media Info

  • Media Type: Print
  • Features: Figures; Photos; References;
  • Pagination: pp 215-221
  • Monograph Title: Low volume roads: second international conference; proceedings, August 20-23, 1979
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00301120
  • Record Type: Publication
  • ISBN: 309028434
  • Files: TRIS, TRB
  • Created Date: Oct 17 1979 12:00AM