Bridge Design. The State will prepare or provide:
A. As-built plans of existing structures, National Bridge Inventory (NBI), and applicable Brinsap report.
B. Written approval of preliminary bridge layouts before bridge design work begins.
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 f...
Bridge Design. BRIDGE LAYOUT The Engineer shall prepare the bridge layout plan sheet. The Engineer shall determine the location of each soil boring needed for foundation design in accordance with the Geotechnical Manual. The Engineer shall submit each bridge layout early in the plan preparation process to obtain approval from the State. The Engineer shall comply with all relevant sections of the latest edition of the State’s Load and Resistance Factor Design (LRFD) Bridge Design Manual, Bridge Project Development Manual, Bridge Detailing Manual, and AASHTO LRFD Bridge Design Specifications and respective checklists. Each bridge layout sheet must include bridge typical sections, structural dimensions, abutment and bent locations, superstructure and substructure types. The existing and proposed headwater (HW) elevations for the 1% AEP and the design frequency shall be included in the profile view. 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.
Bridge Design. 3.3.2.1. 1Bridge Geometrics
Bridge Design a) The Engineer shall perform bridge design required for any roadway crossings to the proposed improvements to the existing channels and/or proposed channels of the Project. The design of these bridges shall conform to the Project design criteria required by the Owner (City, County, or State), of the associated
b) Prior to performing structural detailing, the Engineer shall provide a bridge layout to the governing entity of the associated bridge structure and/or roadway for approval. Each bridge layout will include the required information set forth by the governing entity.
Bridge Design. If necessary, design a bridge structure to cross potential wetlands along the proposed ROW alignment will be designed for HL-93 loading or greater. The design will include all supporting calculations for the structure including geometry, structural design, layout sheets and details. The bridge will be 4 lanes (two lane in each direction). We will also provide two (2) borings 80’ in depth for the bridge design. The fee for this item is included in the base geotechnical fee.
Bridge Design. This task describes work to complete base bridge contract documents, consisting of plans, specifications, calculations for Level 1 design criteria, and estimates for each bridge. The deliverables to be developed under this section are as follows: • Stage 1 o Level One Checklist and Computations o Design Information o Quantity Calculations and Preliminary Opinion of Probable Cost Preliminary Field Check Plans with the following modifications: o Incorporate Preliminary Field Check plans comments o Complete project-information boxes, including right-of-way project number and sheet numbers o Complete sheet-numbers cross references o Review plans against the checklist shown as IDM Figure 85-2F o Stage 3 Review Submission The Stage 3 plans shall be approximately 95% complete and include the following items: o Incorporation of PFC review comments o Final Plans Documentation o Plan Detail Sheets and associated tables o Temporary erosion control o Plan Bridge Sheets and associated tables ▪ Soil Boring Sheet ▪ Layout Sheet ▪ General Plan Sheet ▪ Wingwall and Headwall Detail Sheet o Level One Checklists and Design Computations o Unique and Recurring Special Provisions o Opinion of Probable Construction Cost o Permit drawing development and coordination o QA/QC o Tracings Plan Submission The design shall be progressed to 100% design level for this submission. The following shall be prepared for this submission: o Incorporation of Stage 3 review comments o Incorporation of Pavement Design o Final Tracings Documentation o Level One Checklists and Design Computations o Unique and Recurring Special Provisions o Opinion of Probable Construction Cost o QA/QC
Bridge Design. The Engineer shall perform bridge design at the following locations; Or other locations located within the projects limits, as needed, at the written request of the State’s Project Manager to be considered as supplemental agreement.
Bridge Design. 4.5.1 Prepare two (2) Bridge layouts (plan sheets at appropriate scale as determined by the engineer). Items to be included: • Plan ▪ Existing right-of-way and easements ▪ Existing survey data ▪ Existing trees ▪ Existing utilities ▪ Proposed right-of-way and easements ▪ Proposed centerline alignment and curve data ▪ Proposed bent locations ▪ Proposed beam spacing ▪ Proposed abutment locations ▪ Proposed bridge deck limits ▪ Proposed approach slabs ▪ Proposed sidewalks/pedestrian railing ▪ Proposed pavement transitions ▪ Proposed utilities ▪ Proposed safety end treatments ▪ Proposed bridge traffic railing • Profile ▪ Existing ground profile ▪ Proposed vertical alignment (top of curb) ▪ Proposed bridge xxxxx ▪ Proposed bridge abutments ▪ Proposed header banks ▪ Proposed safety end treatments ▪ Proposed bridge traffic railing and pedestrian railing ▪ Proposed utilities ▪ Proposed low chord elevation ▪ Proposed approach slabs ▪ 100-year water surface elevation for both FEMA and for fully-developed conditions
4.5.2 Develop the following additional bridge sheets: • Foundation plans • Bridge typical sections • Traffic rail, pedestrian rails, and fencing, if applicable • List of additional sheets to be provided during Final Design • List of applicable TxDOT standards
4.5.3 Incorporate geotechnical recommendations into the preliminary design submittal
Bridge Design. 1. BRIDGE LAYOUT The Engineer shall prepare the bridge layout plan sheet. The Engineer shall determine the location of each soil boring needed for foundation design in accordance with the Geotechnical Manual. The Engineer shall submit each bridge layout early in the plan preparation process to obtain approval from the State. The Engineer shall comply with all relevant sections of the latest edition of the State’s Load and Resistance Factor Design (LRFD) Bridge Design Manual, Bridge Project Development Manual, Bridge Detailing Manual, and AASHTO LRFD Bridge Design Specifications and respective checklists. Each bridge layout sheet must include bridge typical sections, structural dimensions, abutment and bent locations, superstructure and substructure types. The existing and proposed headwater (HW) elevations for the 1% AEP and the design frequency shall be included in the profile view. The Engineer shall DocuSign Envelope ID: 2136EF24-41E3-476A-9DE8-B6DB65099AD1 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.
