Transportation Research Record contains the following papers: Environmental impact of runoff from highway construction and repair materials : project overview (Huber, WC, Nelson, PO, Eldin, NN, Williamson, KJ and Lundy, JR); Results of California Department of Transportation litter management pilot study (Lippner, G, Johnston, J, Combs, S, Walter, K and Marx, D); Environmental impact of construction and repair materials on surface water and groundwater : screening and evaluation methodology (Nelson, PO, Williamson, KJ, Azizian, MF, Thayumanavan, P, Huber, WC and Eldin, NN); Environmental impact of construction and repair materials on surface water and groundwater : detailed evaluation of waste-amended highway materials (Thayumanavan, P, Nelson, PO, Azizian, MF, Williamson, KJ and Lundy, JR); Characteristics of storm-water runoff from highway construction sites in California (Kayhanian, M, Murphy, K, Regenmorter, L and Haller, R); Estimation and internet-based dissemination of extreme rainfall information (Durrans, SR and Brown, PA); Step-pool morphology in high-gradient countersunk culverts (Maxwell, AR, Papanicolaou, AN, Hotchkiss, RH, Barber, ME and Schafer, J); Consideration of stream morphology in culvert and bridge design (Kosicki, AJ and Davis, SR); Compliance testing of a bullnose median barrier system : NCHRP report 350 (Bielenberg, BW, Reid, JD and Faller, RK); Washington State cable median barrier (Albin, RB, Bullard, DL and Menges, WL); W-beam guardrail adjacent to a slope (Polivka, Ka, Faller, RK, Sicking, DL and Rohde, JR); Improvements to the weak-post w-beam guardrail (Ray, MH, Engstrand, K, Plaxico, CA and McGinnis, RG); Three-strand cable median barrier in North Caroline : in-service evaluation (Hunter, WW, Stewart, JR, Eccles, KA, Huang, HF, Council, FM and Harkey, DL); Selection of roadside safety barrier containment level according to European Union standards (Montella, A); Unreported collisions with post-and-beam guardrails in Connecticut, Iowa, and North Carolina (Ray, MH and Weir, JA); Performance of w-beam splices (Ray, MH, Plaxico, CA and Engstrand, K); Development of two test level 2 bridge railings and transitions for use on transverse glue-laminated deck bridges (Faller, RK, Rosson, BT, Ritter, MA, Keller, EA and Duwadi, SR).