Bridge Standards

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Bridge Standards Practices

• Bridge Design Drafting Manual (BDDM)
• Bridge Drawings
• Upcoming Bridge Training

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Overview

• Links to ODOT Bridge Information
• BDDM Recent Key Updates
• Proposing Changes to the Manual
• Deviations from BDDM
• Bridge Drawings Start to Finish
• Bridge Section Training Updates

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ODOT Bridge On-Line Links

• Bridge Engineering Home Page
• http//www.oregon.gov/ODOT/HWY/BRIDGE
• Bridge Design Drafting Manual (BDDM)
• Bridge Standard Drawings
• Use Br. Standards Manuals Link
• Standard Drawings also via Roadway Engineering
  Home Page

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Bridge Engineering Home Page
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Br. Standards Manuals Page
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ODOT Bridge Example Drawings

• ftp//ftp.odot.state.or.us/Bridge/BDDM
• In the Example_Drawings folder
• Also
• Cell_Library
• Bridge_Example_Designs
• BDDM_Figures

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BDDM Nov. 2005 Selected Updates

• 1.1.2.2 Scour Analysis
• 1.1.7.2(2) Pedestrian Structures Live Load
• 1.1.7.4 LRFD Ductility, Redundancy and
  Operational Importance Factors
• 1.1.7.5 Sidewalk Loading New section
• 1.1.8.4 End Bents Concrete facing on MSE walls
• 1.1.14.2(1) Stay-in-Place Forms
• 1.2 Steel Various updates
• 1.2.1.9 Deck Pouring Sequence

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To Propose Changes to BDDM

• Go to Introduction, Revising The Manual, page
  INTRO-5
• Follow Step-by-Step procedure
• Not needed for bringing routine errors to our
  attention (typographical, etc.)

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BDDM Deviation Process

• When you want to do something differently than
  BDDM policy specifies
• Send E-mail request to Bridge Standards
  Practices Committee stating what and why
• Committee will review and respond

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Deviation vs. Exception

• Roadway Engineering Design Exception process is
  a more formal request to use geometry, etc. that
  doesnt meet operational standards

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Bridge Standards Practices Committee

• Bruce Johnson, State Bridge Engineer
• Kevin Davidson, Br. Standards Practices Engr.
• Gary Bowling, Br. Operations Managing Engineer
• Craig Shike, Concrete
• Hormoz Seradj, Steel
• Holly Winston, Seismic Bridge Rails
• Jan Six, Foundations

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Create CAD Files Drawings

• Three Types of CAD Files
• Layout File
• Sub-structure File
• Super-structure File

Layout File
Sub-structure File
Super-structure File
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Drawings are Reviewed

• Engineer of record reviews drawings
• Final Corrections have been made to CAD Files.

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Mylars are Created

• D size mylars are printed
• All parties have signed mylars.
• 11 x 17 paper prints are made of signed mylars.

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Plans are sent in

• D size mylars and 11 x 17 paper copies of
  signed mylars are sent to office of Pre-Letting
  in Salem Headquarters.
• Office of pre-Letting sends mylars to ODOT
  Reprographics for printing and scanning.

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Contract Documents Created

• ODOT Reprographics sends requested material back
  to Office of Pre-Letting and sends Bridge mylars
  and scans to Bridge Engineering Section
  Headquarters, front office.
• Bridge front office returns signed mylars to
  original design office.
• Loads scans into the Bridge Data System (BDS).

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Project is Constructed
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As-Constructed Drawings

• Project Manager submits as-constructed comments
  to design office.
• Engineer of record reviews comments
• Drafter places as-constructed comments on mylar
  by hand.

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Distribution of As-Constructed Drawings

• A set of drawings with as-constructed comments
  are created and distributed to
• Bridge Operations Engineer
• Region Bridge Inspector
• Original red line as-constructed drawings are
  sent back to Project Managers office.

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At Completion of Project

• At completion of a project, what information is
  needed by Bridge Engineering Section Headquarters
  in Salem.
• Electronic CAD files in Microstation Version 8
  format.
• D size signed mylars
• Calculation books
• Project Files
• Load Rating of as-constructed bridge
• per Load Rating Guidelines
• Cost Data

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Bridge Mylar Flowchart
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Upcoming ODOT Bridge Section Training

• Beginning Seismic Design March, April, June
  July, One day a month for 8 hours each month,
  total of 32 hrs.
• High Performance Steel and Accelerated Bridge
  Construction March 15 16
• Whats New in Bridge Design May 17 18th
• LRFD Foundation design Tentative April or May
  2006

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Questions?