Common use of Bridge Design Clause in Contracts

Bridge Design. A. Bridge Layout 1) The 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 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 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 make 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, Bridge Project Development Manual, Bridge Railing Manual, Bridge Design Guide, Bridge Detailing Guide, and AASHTO 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 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 information that is specified in the Bridge Detailing Guide. 5) For highway caps and demolition: Engineer shall develop preliminary bridge layouts to accompany the load rating and retrofit strategy report. Bridge layouts will include 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: include in the required demolition plan the type and location of equipment to be used, the method and sequence of removal of the structural elements, and a narrative indicating the stability of the partially demolished structure is maintained throughout the demolition process. Provide sign and sealed demolition plans when demolition structures intersect active roadways.

Bridge Design. A. Bridge Layout 1) The Engineer shall ENGINEER will prepare a bridge layout plan sheet and structural details for each bridge. 2a three span, four (4) Prior 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 xxxxx 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 xxxxx 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 preparation COUNTY. The bridge layouts will include: Plan View a. Bearing of each bridge layoutroadway center-line b. Bridge bent and abutment skew angles c. Control stations at the beginning and ending of structures d. Dimensioned widths of bridge, 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 stabilizationshoulders, and retaining wallssidewalks 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, andbeam types and spacing m. Expansion Joint and seal type Elevation View c) The optimum bridge beams for the direct connectorsa. Profile grade 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 dimensions, abutment b. Vertical curve data c. Finished roadway elevation at beginning 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 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 make necessary revisions to the layout to reflect the progress end of the final design. The Engineer shall comply with all relevant sections bridge d. Overall length of the latest edition of the State’s Bridge Design Manual-LRFD, Bridge Project Development Manual, Bridge Railing Manual, Bridge Design Guide, Bridge Detailing Guide, and AASHTO 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 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 information that is specified in the Bridge Detailing Guide. 5) For highway caps and demolition: Engineer shall develop preliminary bridge layouts to accompany the load rating and retrofit strategy report. Bridge layouts will include 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: include in the required demolition plan the type and location of equipment to be used, the method and sequence of removal of the structural elements, and a narrative indicating the stability of the partially demolished structure is maintained throughout the demolition process. Provide sign and sealed demolition plans when demolition structures intersect active roadways.structure

Bridge Design. A. Bridge Layout 1) The 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. The Engineer shall comply with all relevant sections of the latest edition of the TxDOT Bridge Design Manual - LRFD, TxDOT Bridge Project Development Manual, TxDOT Bridge Detailing Guide, and AASHTO LRFD Bridge Design Specifications, and respective checklists. Each bridge layout sheet must include bridge typical sections, structural 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 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 make 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, Bridge Project Development Manual, Bridge Railing Manual, Bridge Design Guide, Bridge Detailing Guide, and AASHTO 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 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 information that is specified in the Bridge Detailing Guide. 5) For highway caps and demolition: Engineer shall develop preliminary bridge layouts to accompany the load rating and retrofit strategy report. Bridge layouts will include 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: include in the required demolition plan the type and location of equipment to be used, the method and sequence of removal of the structural elements, and a narrative indicating the stability of the partially demolished structure is maintained throughout the demolition process. Provide sign and sealed demolition plans when demolition structures intersect active roadways.