1 / 10

Design Standards For Local Agency Bridges Statewide Local Agency Project Delivery Conference May, 2006

Design Standards For Local Agency Bridges Statewide Local Agency Project Delivery Conference May, 2006. What We’ll Cover Here. Who Owns The Bridge? Definition of a “Public Road” How Does A Bridge Become Eligible for Rehabilitation or Replacement? Inspection & Load Rating for Local Bridges

paul2
Download Presentation

Design Standards For Local Agency Bridges Statewide Local Agency Project Delivery Conference May, 2006

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. Design StandardsFor Local Agency BridgesStatewide Local AgencyProject Delivery ConferenceMay, 2006

  2. What We’ll Cover Here • Who Owns The Bridge? • Definition of a “Public Road” • How Does A Bridge Become Eligible for Rehabilitation or Replacement? • Inspection & Load Rating for Local Bridges • “HBRR” The Highway Bridge Rehabilitation and Replacement Program – Federal Funds for Local Bridges • Design Standards for Local Agency Bridges • AASHTO

  3. Who Owns The Bridge? • Who Owns the Bridge? • Your agency owns the bridge if your agency owns the street or road. Simple – right? • Federal law provides oversight for bridges. • The National Bridge Inspection Standards, which is Federal law, covers all bridges longer than 20 feet that are on public roads. • The definition of public road that is used by the NBIS, 23CFR650 Part C, is contained in 23 USC 101(a)(27). This is a definition that you may be familiar with. "Any road or street under the jurisdiction of and maintained by a public authority and open to the public".

  4. Another Stewardship Agreement • FHWA Has Delegated Authority To States To Provide Oversight • Local Bridges Are Owned And Managed By Local Agencies • States Ensure That The Bridges Are Inspected Periodically (Usually Every Two Years) • States Ensure That The Bridges Are Analyzed For Structural Capacity (Load Rated) • States Ensure That Structurally Deficient Bridges Are Posted for Load Restrictions and/or replaced

  5. The HBRR Program • Highway Bridge Rehabilitation and Replacement Program • This Program Includes Local Agency Bridges • Provides Funding For Rehabilitation And Replacement • Funding Is Usually Limited In Oregon to Replacement Activities • Rehabilitation Is Sometimes Funded For Historic Bridges

  6. What Types Bridges Get Replaced • Bridges That Are Deteriorated • Bridges That Have Posted Load Restrictions • Bridges That Are Functionally Obsolete (usually means too narrow)

  7. Bridge Replacement Standards

  8. For Geometric Design

  9. For Load Rating And Structural Design • AASHTO LRFD Bridge Design Specifications • AASHTO is American Association State Highway and Transportation Officials • Covers Most of North America, Including Canada • LRFD is a Design Code; Load Resistance Factor Design • The LRFD Code Covers Load Rating and Design of Bridges, Culverts, Sign Supports, Tunnels, Retaining Walls, Illumination Supports and any other type of structure on a transportation facility.

  10. Who Selects The Bridges That Are Going To Get Funded For Replacement? The HBRR Local Agency Bridge Selection Committee. Composed of State, County & Local Officials. Selection Criteria Is Based On A Point System Using Information From Bridge Inspections And Bridge Load Ratings

More Related