Standard Division Bridge o f t hi s s t a nda r d t o o t he r f o r ma t s o r f o r i n c o rr ec t r e s u lt s o r da ma g e s r e s u lti ng fr o m it s u s e . k i nd i s ma de by TxDOT f o r a ny pu r po s e wha t s o e v e r . TxDOT a ss u me s no r e s pon s i b ilit y f o r t he c onv e r s i on The u s e o f t hi s s t a nda r d i s gov e r n e d by t he " Te xa s Eng i n ee r i ng Pr ac ti ce Ac t " . No wa rr a n t y o f a ny DI SCL AI MER: FI LE: DATE: DN: CK: DW: CK: FILE: JOB COUNTY SECT DIST REVISIONS GAF TxDOT TxDOT GAF HIGHWAY SHEET NO. C TxDOT CONT racste01.dgn February 2010 RAIL MOUNTING DETAILS RAIL ANCHORAGE CURB RAC SHEET 1 OF 2 BOX CULVERT (CURBS 8" TO 5'-0" TALL ONLY) 9" Ma x 8" Mi n ~ 9" Ma x 8" Mi n ~ 1' - 9" Mi n L a p 1' - 6" Ma x Ov e r 2' - 0" t o 5' - 0" Ma x 1' - 9" Mi n L a p 1' - 6" Ma x Ov e r 2' - 0" t o 5' - 0" Ma x Same as Curb Height "C" anchorage details standard for rail See applicable rail anchorage details standard for rail See applicable rail anchorage details standard for rail See applicable rail anchorage details standard for rail See applicable rail anchorage details standard for rail See applicable rail 2'-3" 2'-3" 2'-3" 2'-3" 2'-3" 2'-3" anchorage details standard for rail See applicable rail Grade Finished Grade Finished of Culvert Top Slab Jt Const Jt Const of Culvert Top Slab Skewed Culvert Outside Wall of U & Z Bars U & Z do not fit those areas where Bars of normal Bars U & Z in Type 3) installed in lieu Bars S (S & U in Curb Grade Finished Jt Const of Culvert Top Slab Ba r s H Sp a Eq Sp a a t 2 Eq Sp a " C" " C" U2(#4) H(#4) H(#4) 2 Typ Z (#5) Typ " T" " T" Ba r s L Ba r s U2 & Z2 Ba r s L 1 1 2" Ba r s H Sp a Eq Sp a a t 2 Eq Sp a " C" U2(#4) H(#4) Typ 2" " C" H(#4) Typ " C" H(#4) Typ Bars S, U, & Z Spacing as shown in Table TYPE 3 CURB SECTION A-A SECTION B-B Anchorage Curb H(#4) 1 Typ Z (#5) " T" U1(#4) Ba r s L 1 TYPE 2 CURB SECTION B-B SECTION A-A TYPE 1 CURB SECTION A-A SECTION B-B TYPICAL CURB PLAN Same as Curb Height "C" 0.056 0.063 0.083 0.125 0.167 0.250 0.333 0.417 21.5 21.5 29.7 30.6 31.5 44.6 56.8 60.0 REINFORCING SPACING TABLE OF "C" Curb Height Type Section ESTIMATED QUANTITIES TABLE OF Type Section "C" Height Curb (Lb/LF) Steel Reinf (CY/LF) Concrete Class "C" & Z Spa Bars S, U, 12" 9" 7" 5" 1 2 3 3 4 1 2 2 2 3 3 3 8" 9" 1'-6" 2'-0" 3'-0" 4'-0" 5'-0" 4 1 2 3 8" to 9" Over 9" to 2'-0" Over 2'-0" to 3'-0" Over 3'-0" to 5'-0" 1'-0" 1 2' - 0" Ov e r 9" t o Spaced at 6" Max Spaced at 6" Max Min hook to provide Field Bend ( 2' - 3" Ma x ) Min 2'-0" 2'-0" 2'-0" 2'-0" 2'-0" 2'-0" BARS L (#6) OPTIONAL 10" 10" Z Z 2 1 3'-8" 12" 2'-8" 12" 3 8" " C" p l u s 3" 2 2 BARS Z (#5) BARS U2 (#4) BARS U1 (#4) BARS L (#6) BARS S1 (#5) 5" 6" Typ BARS S2 (#5) 6" Typ BARS S3 (#5) 1' - 9" ( 1' - 9" Ma x ) L(#6) 2 L(#6) 2 L(#6) 2 " C" 2' - 0" Ov e r 9" t o 2' - 3" Cu r b An c ho r a g e A A B B " Ma x 2 1 2 " Mi n 2 1 1 " Ma x 2 1 2 " Mi n 2 1 1 " 2 1 1 " 2 1 1 " 2 1 4 " 2 1 1 " 2 1 1 " 2 1 1 " 2 1 1 " 2 1 4 " 2 1 1 " 2 1 1 " 2 1 1 " 2 1 1 " 2 1 4 " 2 1 1 " 2 1 1 ( 4' - 9" Ma x ) bar. Reinforcing bar dimensions shown are out-to-out of otherwise. Cover dimensions are clear dimensions, unless noted " 2 1 2 " 2 1 2 " 2 1 2 on standards T80HT, T80SS and T224 are not required when used with the RAC standard. (Bars L(#5) on T223 and C223 Rails are not used for this structure). Bars RH(#5) required Used for curbs from 8" to 9" (Showing "C" = 9"). Showing T223 Rail, other rails similar. on standards T80HT, T80SS and T224 are not required when used with the RAC standard. (Bars L(#5) on T223 and C223 Rails are not used for this structure). Bars RH(#5) required Used for curbs over 9" to 2'-0" (Showing "C" = 2'-0"). Showing T223 Rail, other rails similar. standards T80HT, T80SS and T224 are not required when used with the RAC standard. (Bars L(#5) on T223 and C223 Rails are not used for this structure). Bars RH(#5) required on Used for curbs over 2'-0" to 5'-0" (Showing "C" = 4'-0"). Showing T223 Rail, other rails similar. T80HT, T80SS and T224 are not required when used with the RAC standard. Rails are not used for this structure). Bars RH(#5) required on standards Showing typical installation on skewed culvert. (Bars L(#5) on T223 and C223 Z1(#5) Bars Z1 in overhang) S1(#5) (replaces skewed corner) curb overhang at Bars U1 & Z1 in S2(#5) (replaces Ba r s S3 w/ U2 skewed corner) overhang at Bars Z2 in curb S3(#5) (replaces Height,"C". interpolated for intermediate values of Curb The values for each section type in table can be only. Quantities are per Linear Foot of curb length. Quantities shown are for Contractor's information Box Culverts with 3'-0" closure pours. Optional Bars L are to be used only for Precast Tilt Bars L hook as necessary to maintain cover. SCP-MD Standard for additional details. Precast Boxes with slabs less than 7" thick, see "T" is equal to the culvert top slab thickness. For 11" " C" mi nu s 3" GENERAL NOTES: CONSTRUCTION NOTES: MATERIAL NOTES: 03-16: Notes. 07-12: Width. T101 Anchor PL. 05-11: Type 3 Curb, Sect B-B, Gen Notes, greater than those shown will require special design. 5'-0" tall only. Curb heights that are less than or These details are for use with curbs that are 8" to Culvert for payment. This anchorage curb is considered part of the Box speed restrictions, notes and details not shown. See appropriate rail standard for approved design strength for use with all standard rail types. The rail anchorage curb details have sufficient Specifications. Designed according to AASHTO LRFD Bridge Design Class "C" (HPC) concrete if shown elsewhere in the plans. Provide Class "C" concrete (f'c=3,600 psi). Provide Provide Grade 60 reinforcing steel. flush with the finished grade. For vehicle safety, the top of the curb must be culvert standard sheets. culvert curb reinforcing bars K and H shown on the When using this anchorage curb, omit normal " C" mi nu s 3" 2' - 3"