01606oam 2200481 a 450 991069960890332120110622153629.0(CKB)5470000002404852(OCoLC)731952941(OCoLC)995470000002404852(EXLCZ)99547000000240485220110621d2009 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierMaintenance of drainage features for safety[electronic resource] a guide for street and highway maintenance personnelWashington, D.C. :U.S. Dept. of Transportation, Federal Highway Administration,[2009]1 online resource (33 pages) color illustrations"July 2009.""FHWA-SA-09-024."Title from title screen (viewed on June 22, 2011).Maintenance of drainage features for safety DrainageManagementHandbooks, manuals, etcRoad drainageHandbooks, manuals, etcStorm sewersCulvertsTraffic safetyHandbooks and manuals.lcgftDrainageManagementRoad drainageStorm sewers.Culverts.Traffic safety.United States.Federal Highway Administration.GPOGPOGPOBOOK9910699608903321Maintenance of drainage features for safety3468447UNINA