(1990) Full-Scale 5,400 lb. Vehicle Crash Test on the Iowa W-Beam approach Guardrail to the Concrete Safety Shape Bridge Rail by Ronald K. Faller, January 1990. Transportation, Department of
(1991) Full-Scale 18,000lb Vehicle Crash Test on the Iowa Retrofit Concrete Barrier Rail by Brian G. Pfeifer, February 1991. Transportation, Department of
(1990) Full-Scale 18,000lb Vehicle Crash Test on the Iowa Retrofit Concrete Barrier Rail by Brian G. Pfeifer, January 1990. Transportation, Department of
(1982) Sioux City Sign Inventory System, SCSIS User's Manual prepared for Sioux City, Iowa, September 1982. Transportation, Department of
(1963) List of Signs and Sign Blanks for Primary and Interstate Systems by Iowa State Highway Commission, January 1963. Transportation, Department of
(1970) List of Signs and Illustrations of Use for Primary and Interstate Highways by Traffic and Safety Department, July 1970. Transportation, Department of
(1997) Applications for Traffic Control Devices, July 1997. Transportation, Department of
(1978) Hamilton Boulevard Safety Project Evaluation, Sioux City Iowa, 1978. Transportation, Department of
(1959) Electronic Warning Signal Research at Hidden Intersections, June 1959. Transportation, Department of
(1980) Maintenance Equipment Lighting Manual, September 1980. Transportation, Department of
(1973) Resurfacing and Asphalt Concrete Paving by Kermit L. Farrier, 1973. Transportation, Department of
(1988) Evaluation of Bond Retainage in Portland Cement Concrete Overlays by Infrared Thermography and Ground Penetrating Radar, 1988. Transportation, Department of
(1993) User Manual for the On-Line applications of the Pavement Management Information System (PMIS) developed for the Bridge and Pavement Management Policy Committee and Pavement Management Tech...
(1983) Iowa's Experience with Contract Maintenance prepared by Bernhard H. Ortgies, 1983. Transportation, Department of
(1983) Iowa's Experience with Contract Maintenance by Dwight M. Rorholm, October 1983. Transportation, Department of
(1975) Determining the Loss of Service Life on Secondary Roads or City Streets used for Primary Road Detours by Ronald D. Less September 24, 1975. Transportation, Department of
(1985) Iowa's Pavement Management System by S.L. Tritsch, 1985. Transportation, Department of
(1979) Implications of increased Truck Weight and Size in Iowa, August, 1979. Transportation, Department of
(1978) Implications of allowing Heavier Trucks in Iowa presented to the Iowa Transportation Commission, January 10, 1978. Transportation, Department of
(1969) Pipe Culverts, Inspection Handbook by by E.J. Shaffer, 1969. Transportation, Department of