Assessing, Coding, and Marking of Highway Structures in Emergency Situations, Volume 2: Assessment Process Manual (2016) / Chapter Skim
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3 C H A P T E R 1 1.1 Purpose and Scope The purpose of this manual is to provide a rapid, effective process for the assessing, coding, and marking of highway structures in emergency situations that can be implemented by state highway agencies (SHAs) across the United States.
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4 Assessing, Coding, and Marking of Highway Structures in Emergency Situations: Assessment Process Manual • High wind • Flooding • Scour • Fire Smaller, more localized events or events that typically do not result in damage to structures are not considered because they can typically be covered with established SHA protocols that do not require the level of detail presented in this manual. Examples include collision-related traffic accidents, explosions, landslides, mudflows, winter storms, ice storms, blizzards, sinkholes, or most man-made hazards.
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Introduction 5 The procedures presented in this manual were developed based on the principal findings of a thorough background investigation consisting of both a literature review to establish the state of the art and an online questionnaire to establish the state of the practice. The literature review analyzed common emergency events (described previously)
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6 Assessing, Coding, and Marking of Highway Structures in Emergency Situations: Assessment Process Manual 1.4.2 Existing Procedures The process in this manual was developed based on several currently available procedures determined through the literature review and questionnaire. The primary references used as a foundation for this manual are as follows: • Applied Technology Council (ATC)
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Introduction 7 Procedures Bridges Tunnels Walls Culverts Embankments Overhead Signs Coding and/or Marking • ConnecticutA • Maryland • New York B • OhioC • Oregon D • Maryland • New YorkB • OhioC • Maryland • New YorkB • Maryland • New YorkB • OhioC • OregonD • New YorkB • Colorado • ConnecticutA General • FHWAE • ConnecticutA • IllinoisF • Maryland • MinnesotaG • MississippiH • New YorkB • OhioI • OregonD • PennsylvaniaJ • UtahK • WashingtonL • WisconsinM • OregonD • PennsylvaniaJ • Virginia • WisconsinM • ConnecticutA • PennsylvaniaJ • UtahK • WisconsinM • ConnecticutA • IllinoisF • Maryland • North Dakota • OregonD • PennsylvaniaJ • UtahK • Virginia • WisconsinM • OregonD • PennsylvaniaJ • UtahK • WisconsinM • ConnecticutA • Florida • Hawaii • North Dakota • PennsylvaniaJ • UtahK • WisconsinM Earthquake • Arkansas • California • IllinoisN • IndianaO • Iowa • KentuckyP • MississippiQ • New YorkR • WashingtonS • Oregon None None • IndianaO • KentuckyP • MississippiQ • IndianaO • KentuckyP • MississippiQ • Iowa Tsunami None None None None None None Tornado None None None None None None High Winds None None None None None None Hurricane and Storm Surge None None None None None None Flooding • California • Maryland • OhioI None None None None None Fire • California None None None None None A Connecticut DOT -- Bridge Inspection Manual: http://www.ct.gov/dot/lib/dot/documents/dpublications/Inspection_Manual_061905.pdf B New York State DOT (NYSDOT) -- Bridge Inventory Manual: https://www.dot.ny.gov/divisions/engineering/structures/manuals/bridgeinventory-manual C Ohio DOT -- Bridge Inventory Coding Guide: https://www.dot.state.oh.us/Divisions/Engineering/Structures/BridgeManagementSection/ StructureInventory/Documents/Bridge_Inventory_Coding_Guide_Revised_2012-01.pdf D Oregon DOT -- Bridge Inspection Program Manual: http://www.oregon.gov/ODOT/HWY/BRIDGE/docs/brinspecman2013.pdf E Bridge Inspector's Reference Manual: https://www.fhwa.dot.gov/bridge/nbis.cfm F Illinois DOT -- Bridge Element Inspection Manual: http://www.idot.illinois.gov/Assets/uploads/files/DoingBusiness/ManualsGuides-&-Handbooks/Highways/Bridges/Inspection/Bridge%20Element%20Inspection%20Manual%20REV%2002.2014.pdf G Minnesota DOT -- Bridge Inspection: http://www.dot.state.mn.us/bridge/inspection.html H Mississippi DOT -- Bridge Safety Inspection Policy and Procedure Manual: http://mdot.ms.gov/documents/Bridge/Manuals/Bridge%20 Safety%20Inspection%20Policy%20and%20Procedures.pdf I Ohio DOT -- Bridge Inspection and Maintenance: http://www.dot.state.oh.us/Divisions/Engineering/Structures/bridge%20operations%20 and%20maintenance/Pages/default.aspx J PennDOT -- Bridge Safety Inspection Manual: ftp://ftp.dot.state.pa.us/public/PubsForms/Publications/PUB 238.pdf K Utah DOT -- Bridge Management Manual, Chapter 5: Emergency Response Plan: http://www.udot.utah.gov/main/f?
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8 Assessing, Coding, and Marking of Highway Structures in Emergency Situations: Assessment Process Manual 1.5.1 Assessing, Coding, and Marking • Assessing -- The process of evaluating a structure's condition through inspection and possible data analysis or modeling. This can be completed manually or through technological means.
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Introduction 9 1.5.5 Marking Classifications A final marking classification shall be assigned to each structure determining appropriate usage following an emergency event. The terms INSPECTED, LIMITED USE, and UNSAFE were chosen to be consistent with the process used for buildings (i.e., ATC-20)
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10 Assessing, Coding, and Marking of Highway Structures in Emergency Situations: Assessment Process Manual Essential structures are those that serve as integral links to lifeline routes. These structures should be evaluated for PDA before all other structures.
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