Section 2: Definitions
Anchor: #i1019664Structures
bridge - A bridge is a single span structure of over 20 feet, measured from face to face of abutments, or multiple span structures of over 20 feet (including multiple box culverts, measured between inside of end walls along the centerline of structure). Batteries of pipe culverts, regardless of their length, are not bridges.
culverts - Culverts are those drainage structures not defined as bridges
highway underpass - A highway underpass is a grade separation where the subject (funding) highway passes under an intersecting highway (also called a Highway Undercrossing)
highway overpass - A highway overpass is a grade separation where the subject (funding) highway passes over an intersecting highway (also called a Highway Overcrossing)
railroad underpass - A railroad underpass is a grade separation where a highway passes under an intersecting railroad (also called a Railroad Undercrossing)
railroad overpass - A railroad overpass is a grade separation where a highway passes over an intersecting railroad (also called a Railroad Overcrossing)
pedestrian underpass - A pedestrian underpass is a grade separation where a highway passes under an intersecting pedestrian walkway
stream crossing - A stream crossing is a location where the subject highway passes over an intersecting waterway
Anchor: #i1019709Standards
Statewide Standard Drawing - Drawings are not considered to be an available standard until a good quality reproducible print is made of the electronic file and this print is stamped “Original.” This original print is kept on file in the Bridge Design Section of the Bridge Division. The electronic file of this original is available on TxDOT’s Internet web site at http://www.dot.state.tx.us/insdtdot/orgchart/cmd/cserve/standard/disclaim.htm. Any reproducible copies made from the electronic file may be used in plan sets as if they were copies of the original reproducible print and need not be signed and sealed.
Modified Standard Drawing - Any change, however minor, to a standard drawing for use in a specific job, must be briefly described in the revision block of the sheet and dated. Additionally, the designation "(MOD)" must be placed after the standard name inside the title block.
District Standard Drawing - Any drawings used regularly within a district that were either developed by that district, or statewide standards that are revised to fit the individual needs of that district may be considered a district standard. Each district must identify their standards by including the district name in the title block. Only the issuing district may use this drawing as a standard without signing and sealing.