Bridge Design Clause Samples

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. 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) 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. 3.3.2.1. 1Bridge Geometrics

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. 4.6.1 Prepare one (1) Bridge Layout (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 ▇▇▇▇▇ ▪ Proposed bridge ▇▇▇▇▇ ▪ 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 4.6.2 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 4.6.3 Incorporate geotechnical recommendations into the preliminary design submittal

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 a) The development of a bill of bars has been requested by Lancaster County. The effort includes the development of the individual bar quantities, creation of the bar table and an independent check of the bill of bars sheet. b) During the plan-in-hand, it was decided that a temporary bypass channel would be preferred to construct the box versus phasing the box culvert. Therefore, a model is required to be developed to determine limits of construction, estimated excavation for the channel and cross-sections of the temporary channel. In addition, more detail was added to the corps of engineers 404 permit application.