Question Archive: 2015

ID Problem Title State Date Asked Date Last Answered
1083 Long Span Question WI December 23, 2015 January 6, 2016
1044 MGS transition on 2:1 OH December 21, 2015 December 21, 2015
1026 Buttress Shape for NE Transition UT December 8, 2015 December 8, 2015
1025 Triple Blockouts OH December 1, 2015 January 25, 2016
1042 TL-4 Thrie Beam Barrier WV November 25, 2015 November 26, 2015
1023 adding wood planks to back of posts WI November 23, 2015 November 24, 2015
1040 AGT Post Obstruction NE November 12, 2015 November 21, 2015
995 post placement for long spans WI November 10, 2015 November 17, 2015
1030 Double thrie beam to two single faced thrie beams WI October 28, 2015 October 28, 2015
1041 MGS barrier in a TWLTL OH October 23, 2015 October 28, 2015
1032 Concrete Pier Protection AGT attachment NE October 22, 2015 October 26, 2015
1035 Short Radius Questions WI October 19, 2015 October 19, 2015
1036 Approach Transition Posts Obstructed by Inlet NE October 15, 2015 October 21, 2015
1031 Concrete Median Barrier re-bar questions MN October 9, 2015 October 10, 2015
983 Cable Barrier Heights WI October 1, 2015 October 1, 2015
1027 31 KS September 29, 2015 October 3, 2015
982 Curb (4") in front of Concrete Barrier MN September 28, 2015 September 30, 2015
1038 KDOT Thrie-Beam Standard Drawing KS September 24, 2015 September 26, 2015
1034 Expansion and contraction of the guardrail connection to a bridge parapet MN September 24, 2015 October 1, 2015
1028 Lateral Placement Tolerance for Guardrail Posts OH September 22, 2015 September 23, 2015
1043 MGS Stiffening WV September 18, 2015 September 22, 2015
1029 Bridge Approach Section NE September 17, 2015 September 18, 2015
1033 Guardrail Connector Plate MN September 16, 2015 October 1, 2015
1039 MGS Thrie Beam AGT with Curb OH September 15, 2015 September 21, 2015
1037 Guardrail deflection for non-TL-3 situations IA September 14, 2015 September 14, 2015
969 travesable cuvert grates WI September 2, 2015 September 14, 2015
978 Minimal guardrail lengths to develop tension over culvert IA August 26, 2015 August 26, 2015
981 Vertical Taper Rate for Concrete Barrier August 26, 2015 August 28, 2015
959 grading behind a MGS transition WI August 21, 2015 August 21, 2015
973 Non-Proprietary Bullnose Thrie-Beam System August 17, 2015 August 18, 2015
974 NHSX-52-5(31)--3H-96 Curved Guardrail IA August 7, 2015 August 7, 2015
976 Steel Posts in the Bridge Transition Section IA August 6, 2015 September 9, 2015
975 Temporary Barrier on Bridge 9123 MN August 4, 2015 August 6, 2015
980 Tie-Down Anchor Bolt - Length Change MO July 29, 2015 July 31, 2015
948 fall protection on parapets WI July 22, 2015 September 3, 2015
949 top mounted Guardrail to culvert attachments KS July 22, 2015 July 22, 2015
977 Curb Offset Behind Guardrail KS July 7, 2015 July 9, 2015
979 Guardrail flare rate with Bullnose NE July 1, 2015 July 6, 2015
935 what is the purpose of beam guard in the photo attached WI July 1, 2015 July 2, 2015
972 Curb in front of thrie-beam transition IA June 22, 2015 June 26, 2015
971 Extra Blockouts / Bridge Guardrail Near Side Roads IA June 15, 2015 June 17, 2015
934 Temporary Concrete Barrier IL June 11, 2015 June 12, 2015
920 Steel Plate Grades WI May 27, 2015 May 27, 2015
922 Condition of Temporary Concrete Safety Barrier KS May 27, 2015 May 27, 2015
919 Brittle Test For Steel Bridge Rail Tubes WY May 18, 2015 May 27, 2015
918 CMB in Wide Medians CA May 13, 2015 May 13, 2015
917 Parapet Heights at Thrie Beam Transitions IA May 8, 2015 May 8, 2015
916 W-beam attachment to Culverts NE May 6, 2015 May 8, 2015
915 TCB/Guardrail Transition IL May 5, 2015 May 29, 2015
923 Crash Cushion Question IA May 4, 2015 May 6, 2015
926 Mash working width values for temporary barrier WI April 23, 2015 May 12, 2015
921 Concrete median barrier IL April 22, 2015 April 27, 2015
907 Black Rebar vs. ECR or Calcium Nitrite in PCB WI April 15, 2015 April 15, 2015
927 Bullnose in Gore Area WV April 10, 2015 April 14, 2015
933 Temporary Barrier Rail opening IA April 8, 2015 April 13, 2015
932 Temporary Barrier Rail questions IA April 7, 2015 April 13, 2015
924 Thomas County 2108-01 PCB Anchorage KS April 1, 2015 June 7, 2015
925 Median bullnose guardrail weed prevention WI March 27, 2015 March 30, 2015
931 Retrofit, Low-Deflection, Temporary Concrete Barrier System March 20, 2015 March 20, 2015
929 Johnson County, BRF-001-5(106)--38-52, IA 1 over Ralston Creek bridge replacement IA March 16, 2015 March 18, 2015
928 Illinois Type TP-1 Railing IL March 16, 2015 March 17, 2015
893 Maximum fiber stress in bending for beam guard posts WI March 5, 2015 March 5, 2015
891 Bolt Specifications for Steel Strap TCB Tie-Down KS March 3, 2015 March 4, 2015
930 MoDOT Encapsulated Median Barrier MO February 26, 2015 March 6, 2015
887 Guardrail Length Adjacent to AGT IA February 18, 2015 February 19, 2015
902 Short Radius Controlled Releasing Post on Concrete Box Culvert NE February 13, 2015 February 13, 2015
886 W Beam Cable transition IA February 12, 2015 February 13, 2015
895 Guardrail end terminals with raised curbs FL February 9, 2015 February 9, 2015
901 Short Radii Other than Tested - Bolts on Posts in Radius WI February 6, 2015 February 6, 2015
903 TXDOT TL-3 Transition Crash Test Report LA February 4, 2015 February 5, 2015
900 Missing Post in Double Faced Run of 8" Blockout MGS NH February 4, 2015 February 6, 2015
899 Guardrail Height NE January 26, 2015 January 26, 2015
897 Minimum length of guardrail IL January 25, 2015 January 26, 2015
869 spanning an old culvert WI January 20, 2015 February 3, 2015
888 Inertial Barrier System KS January 16, 2015 January 23, 2015
898 RE: G-4 Guardrail: Clear Spanning of shorter distances, 18'9" & 12' UT January 6, 2015 January 6, 2015

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