Common use of Bridge Design Clause in Contracts

Bridge Design. The ENGINEER will prepare a bridge layout and structural details for a three span, four (4) lane divided Bridge 12 ft. widening. The ENGINEER will prepare a 30% submittal to TxDOT consisting of bridge plan, elevations and sections for review and approval before detailing is started. The ENGINEER will perform final design of preferred foundation type for bridge structure in accordance with the TxDOT’s Bridge Division Geotechnical Manual and Geotechnical design report recommendations. The ENGINEER will perform interim review and final, detailed designs in accordance with the current TxDOT Bridge Design Manual and 2020 AASHTO LRFD 9th Edition design requirements utilizing a conventional precast, prestressed concrete U-Beam superstructure and conventional reinforced concrete ▇▇▇▇▇ with conventional substructures. The ENGINEER will perform final, detailed bridge design utilizing cast-in-place concrete deck and prestressed concrete U-Beam superstructure and multicolumn reinforced concrete ▇▇▇▇▇ and abutments. The ENGINEER will produce summary tables of all bridge structure quantities, provide beam end bearing seat elevations tables and provide bent and abutment control elevations. The ENGINEER will prepare the bridge construction General Notes and Specifications and transmit these documents to the COUNTY. The bridge layouts will include: Plan View a. Bearing of roadway center-line b. Bridge bent and abutment skew angles c. Control stations at the beginning and ending of structures d. Dimensioned widths of bridge, roadway, shoulders, and sidewalks e. Limits of riprap f. North arrow g. Cross-slope and super-elevation data h. Traffic flow directional arrows i. Railing type j. Bent stations and bearings k. Approach pavement crown width l. Typical Bridge sections showing construction stages, beam types and spacing m. Expansion Joint and seal type Elevation View a. Profile grade b. Vertical curve data c. Finished roadway elevation at beginning and end of the bridge d. Overall length of the structure

Bridge Design. A. Bridge Layout 1) The ENGINEER will Engineer shall prepare a bridge layout plan sheet for each bridge. 2) Prior to the preparation of each bridge layout, the Engineer shall prepare a comparative cost analysis of bridge structures to determine: a) The optimum bridge beams for vertical clearance over any roadway, or waterways b) The optimum bridge structure versus roadway embankment, pavement, soil stabilization, and structural details retaining walls, and c) The optimum bridge beams for the direct connectors 3) The Engineer shall submit a three span, four (4) lane divided Bridge 12 ft. wideningbridge layout for each structure early in the plan preparation process to obtain approval from Fort Bend County. The ENGINEER will prepare a 30% submittal Engineer shall also render each bridge, to TxDOT consisting the appropriate level of bridge plandetail, elevations and sections for review and approval before detailing is startedin the 3D corridor model. The ENGINEER will perform final design Engineer shall comply with all relevant sections of preferred foundation type for bridge structure in accordance with the TxDOT’s Bridge Division Geotechnical Manual and Geotechnical design report recommendations. The ENGINEER will perform interim review and final, detailed designs in accordance with latest edition of the current TxDOT Bridge Design Manual - LRFD, TxDOT Bridge Project Development Manual, TxDOT Bridge Detailing Guide, and 2020 AASHTO LRFD 9th Edition design requirements utilizing a conventional precastBridge Design Specifications, prestressed concrete U-Beam and respective checklists. Each bridge layout sheet must include bridge typical sections, structural dimensions, abutment and bent locations, and superstructure and conventional reinforced concrete ▇▇▇▇▇ with conventional substructuressubstructure types. The ENGINEER Engineer shall locate and plot all soil borings and utilities, show proposed retaining walls, and, for staged construction, indicate limits of existing bridge for removal and reconstruction. 4) The Engineer shall confirm approval from the County prior to proceeding with final bridge design. The Engineer will perform finalmake necessary revisions to the layout to reflect the progress of the final design. The Engineer shall comply with all relevant sections of the latest edition of the State’s Bridge Design Manual-LRFD, detailed Bridge Project Development Manual, Bridge Railing Manual, Bridge Design Guide, Bridge Detailing Guide, and AASHTO LRFD Bridge Design Specifications. Each bridge design utilizing cast-in-place concrete deck layout sheet must include bridge typical sections, structural dimensions, abutment and prestressed concrete U-Beam bent locations, superstructure and multicolumn reinforced concrete ▇▇▇▇▇ substructure types, and abutmentsany pertinent information from the Bridge Detailing Guide layout checklists. The ENGINEER will produce summary tables Engineer shall locate using the County provided information and plot all soil borings and utilities, show proposed retaining walls, and, for staged construction, indicate limits of existing bridge for removal and reconstruction. Bridge layout must include all bridge structure quantities, provide beam end bearing seat elevations tables information that is specified in the Bridge Detailing Guide. 5) For highway caps and provide bent and abutment control elevations. The ENGINEER will prepare the bridge construction General Notes and Specifications and transmit these documents to the COUNTY. The demolition: Engineer shall develop preliminary bridge layouts to accompany the load rating and retrofit strategy report. Bridge layouts will includeinclude plan and profile based on the as- built plans. Existing roadways and proposed improvements will be depicted to identify impacts to existing foundations. Typical sections will be provided at critical locations to further identify critical foundation impacts. Engineer shall develop a demolition sequence for upper deck bridge structures to be removed. Demolition sequence includes but is not limited to: Plan View a. Bearing include in the required demolition plan the type and location of roadway center-line b. Bridge bent equipment to be used, the method and abutment skew angles c. Control stations at sequence of removal of the beginning and ending of structures d. Dimensioned widths of bridge, roadway, shouldersstructural elements, and sidewalks e. Limits of riprap f. North arrow g. Cross-slope and super-elevation data h. Traffic flow directional arrows i. Railing type j. Bent stations and bearings k. Approach pavement crown width l. Typical Bridge sections showing construction stages, beam types and spacing m. Expansion Joint and seal type Elevation View a. Profile grade b. Vertical curve data c. Finished roadway elevation at beginning and end a narrative indicating the stability of the bridge d. Overall length of partially demolished structure is maintained throughout the structuredemolition process. Provide sign and sealed demolition plans when demolition structures intersect active roadways.

Bridge Design. A. Bridge Layout 1) The ENGINEER will Engineer shall prepare a bridge layout plan sheet for each bridge. 2) Prior to the preparation of each bridge layout, the Engineer shall prepare a comparative cost analysis of bridge structures to determine: a) The optimum bridge beams for vertical clearance over any roadway, or waterways b) The optimum bridge structure versus roadway embankment, pavement, soil stabilization, and retaining walls, and c) The optimum bridge beams for the direct connectors 3) The Engineer shall submit a bridge layout for each structure early in the plan preparation process to obtain approval from Fort Bend County. The Engineer shall also render each bridge, to the appropriate level of detail, in the 3D corridor model. Each bridge layout sheet must include bridge typical sections, structural details dimensions, abutment and bent locations, and superstructure and substructure types. The Engineer shall locate and plot all soil borings and utilities, show proposed retaining walls, and, for a three spanstaged construction, four (indicate limits of existing bridge for removal and reconstruction. 4) lane divided Bridge 12 ft. wideningThe Engineer shall confirm approval from the County prior to proceeding with final bridge design. The ENGINEER Engineer will prepare a 30% submittal make necessary revisions to TxDOT consisting the layout to reflect the progress of bridge plan, elevations and sections for review and approval before detailing is startedthe final design. The ENGINEER will perform final design Engineer shall comply with all relevant sections of preferred foundation type for bridge structure in accordance with the TxDOTlatest edition of the State’s Bridge Division Geotechnical Manual Design Manual-LRFD, Bridge Project Development Manual, Bridge Railing Manual, Bridge Design Guide, Bridge Detailing Guide, and Geotechnical design report recommendationsAASHTO LRFD Bridge Design Specifications. Each bridge layout sheet must include bridge typical sections, structural dimensions, abutment and bent locations, superstructure and substructure types, and any pertinent information from the Bridge Detailing Guide layout checklists. The ENGINEER will perform interim review Engineer shall locate using the County provided information and finalplot all soil borings and utilities, detailed designs show proposed retaining walls, and, for staged construction, indicate limits of existing bridge for removal and reconstruction. Bridge layout must include all information that is specified in accordance with the current TxDOT Bridge Design Manual Detailing Guide. 5) For highway caps and 2020 AASHTO LRFD 9th Edition design requirements utilizing a conventional precast, prestressed concrete U-Beam superstructure and conventional reinforced concrete ▇▇▇▇▇ with conventional substructures. The ENGINEER will perform final, detailed bridge design utilizing cast-in-place concrete deck and prestressed concrete U-Beam superstructure and multicolumn reinforced concrete ▇▇▇▇▇ and abutments. The ENGINEER will produce summary tables of all bridge structure quantities, provide beam end bearing seat elevations tables and provide bent and abutment control elevations. The ENGINEER will prepare the bridge construction General Notes and Specifications and transmit these documents to the COUNTY. The demolition: Engineer shall develop preliminary bridge layouts to accompany the load rating and retrofit strategy report. Bridge layouts will includeinclude plan and profile based on the as- built plans. Existing roadways and proposed improvements will be depicted to identify impacts to existing foundations. Typical sections will be provided at critical locations to further identify critical foundation impacts. Engineer shall develop a demolition sequence for upper deck bridge structures to be removed. Demolition sequence includes but is not limited to: Plan View a. Bearing include in the required demolition plan the type and location of roadway center-line b. Bridge bent equipment to be used, the method and abutment skew angles c. Control stations at sequence of removal of the beginning and ending of structures d. Dimensioned widths of bridge, roadway, shouldersstructural elements, and sidewalks e. Limits of riprap f. North arrow g. Cross-slope and super-elevation data h. Traffic flow directional arrows i. Railing type j. Bent stations and bearings k. Approach pavement crown width l. Typical Bridge sections showing construction stages, beam types and spacing m. Expansion Joint and seal type Elevation View a. Profile grade b. Vertical curve data c. Finished roadway elevation at beginning and end a narrative indicating the stability of the bridge d. Overall length of partially demolished structure is maintained throughout the structuredemolition process. Provide sign and sealed demolition plans when demolition structures intersect active roadways.