1 / 8

National Bridge Inventory Coding Guide Update

The National Bridge Inventory Coding Guide update meeting, held on September 5-6, 2007, in Portland, Maine, focused on reviewing over 2000 comments on the October 2006 version. The FHWA team is actively updating the document and preparing responses while scaling back proposed changes that are critical for federal bridge programs and safety. Key changes include the removal of certain materials/design items and revising condition rating formats. Additionally, a plan of action is in place for further evaluations and final document presentation to AASHTO T-18.

dacia
Télécharger la présentation

National Bridge Inventory Coding Guide Update

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. National Bridge InventoryCoding Guide Update Pontis Users’ Group Meeting September 5-6, 2007 Portland, Maine

  2. Current Status • Received over 2000 comments on the October 2006 version • FHWA team is: • Reviewing comments and updating document concurrently • Preparing responses to all comments • Scaling back proposed changes

  3. Change Justification • Must be necessary to operate federal bridge programs (HBP, NBIP) • Must be necessary to ensure bridge safety • Must be necessary for FHWA’s stewardship and oversight responsibilities • Must be necessary to be responsive to Congress

  4. Summary of Changes • Delete substructure material/design items • Delete charts and quantitative descriptions from deck, super, sub and culvert condition ratings • Format–similar item field size as ’95 Guide • Keep load rating date • Keep Scour Plan of Action item

  5. Summary of Changes • Use rating factor for Structural Evaluation • Use 0-9 scale for appraisal items calculated by Edit/Update • Refer to BIRM to minimize commentary • Use mm/dd/yyyy format for Inspection dates • Use 1995 Guide criteria for under records

  6. Summary of Changes • Keep Deck Geometry item separated • Deck roadway width item • Deck overclearance item • Keep Underclearance item separated • Roadway Hz UndrClr item • Railroad Hz Undrclr item • Roadway Vt. UndrClr item • Railroad Vt. UndrClr item

  7. FHWA Plan of Action • Complete proposed Specifications • Complete responses to comments on the October 2006 version • Continue evaluation of changes • Present document to AASHTO T-18 September 2007 • Develop an implementation strategy and timeline with T-18 (On hold)

  8. Questions • Larry O’Donnell • (708) 283-3502 • larry.o’donnell@fhwa.dot.gov • (lodonnell@fhwa.dot.gov)

More Related