2018 Annual Bridge Report

2018 Annual Bridge Report Prepared by: Snohomish County Public Works Engineering Services Bridge Group Snohomish County Submitted: May 2019 Public Works Cover Photo Howard Creek Bridge 496 was replaced in 2017. The bridge is located on Index-Galena Road north of Index. Credits Darrell Ash, P.E., S.E., County Bridge Engineer Paul Heitman, P.E., C.B.I., Engineer Mike Zitkovich, E.I.T., C.B.I., Engineer Deb Harvey, Graphic Designer This document is available online at www.snohomishcountywa.gov/206 Title VI and Americans with Disabilities Act (ADA) Information: It is Snohomish County’s policy to assure that no person shall on the grounds of race, color, national origin, or sex, as provided by Title VI of the Civil Rights Act of 1964, as amended, be excluded from participation in, be denied the benefits of, or otherwise be discriminated against under any county-sponsored program or activity. For questions regarding Snohomish County Public Works’ Title VI Program, or for interpreter or translation services for non-English speakers, or otherwise making materials available in an alternate format, contact the Department Title VI Coordinator via email at [email protected] or phone 425-388-6660. Hearing/speech impaired may call 711. Información sobre el Titulo VI y sobre la Ley de Americanos con Discapacidades (ADA por sus siglas en inglés): Es la política del Condado de Snohomish asegurar que ninguna persona sea excluida de participar, se le nieguen beneficios o se le discrimine de alguna otra manera en cualquier programa o actividad patrocinada por el Condado de Snohomish en razón de raza, color, país de origen o género, conforme al Título VI de la Enmienda a la Ley de Derechos Civiles de 1964. Comuníquese con el Department Title VI Coordinator (Coordinador del Título VI del Departamento) al correo electrónico [email protected], o al teléfono 425-388-6660 si tiene preguntas referentes al Snohomish County Public Works’ Title VI Program (Programa del Título VI de Obras Publicas del Condado de Snohomish), o para servicios de interpretación o traducción para los no angloparlantes, o para pedir que los materiales se hagan disponibles en un formato alternativo. Los que tienen necesidades comunicativas especiales pueden llamar al 711. ES.2.4.R.0519 Snohomish County 2018 Bridge Report Submitted: May 2019 This bridge report is prepared by Snohomish County Public Works Engineering Services Bridge Group each year to fulfill requirements of the Washington Administrative Code (WAC) 136-20-060. This WAC requires the County Engineer’s report of bridge inspections as follows: “Each county engineer shall furnish the county legislative authority with a written report of the findings of the bridge inspection effort. This report shall be made available to said authority and shall be consulted during the preparation of the proposed six-year transportation program revision. The report shall include the county engineer’s recommendations as to replacement, repair or load restriction for each deficient bridge. The resolution of adoption of the six year transportation program shall include assurances to the effect that the county engineer’s report with respect to deficient bridges was available to said authority during the preparation of the program. It is highly recommended that deficient short span bridges, drainage structures and large culverts be included in said report.” Snohomish County Public Works | 2018 Annual Bridge Report | Page 1 May Creek Bridge 559 Replacement May Creek Bridge 559 prior to its replacement. May Creek Bridge 559 during 2017 construction. Contractor installing the last of four prestressed concrete girders. May Creek Bridge 559 after construction was completed and opened to traffic. Snohomish County Public Works | 2018 Annual Bridge Report | Page 2 Contents WAC 136-20-060 and Signature Page ........................................................................................ 1 May Creek Bridge 559 Replacement (photos) .......................................................................... 2 Contents .................................................................................................................................... 3 Acronyms .................................................................................................................................. 4 Snohomish County Council Districts and Bridge Location Map ................................................ 5 Bridge Maintenance Crew Photographs .................................................................................... 6 Executive Summary ................................................................................................................... 7 Bridge Inventory ........................................................................................................................ 8 Bridge Inspection, Findings and Recommendations .................................................................. 9 Snohomish County Bridge Sufficiency atingsR (SR) .......................................................... 11 Exhibit A - Snohomish County Special Bridge Inspections ............................................... 12 Load Restricted Bridges ........................................................................................................... 14 Exhibit B – Snohomish County Crossings with Weight Restrictions ................................. 15 Width and Height Restricted Bridges ....................................................................................... 16 Exhibit C – Snohomish County Crossings with Width/Height Restrictions ....................... 16 Bridge Replacement Plan ......................................................................................................... 18 Exhibit D – Future Replacement/Rehabilitation Candidates ............................................. 19 Bridge Maintenance and Repairs ............................................................................................. 20 Exhibit E – Major Work Orders Completed in 2018 ........................................................ 21 Bridge Construction 1994-2018 .............................................................................................. 24 Emergency Preparedness Bridges ........................................................................................... 25 Snohomish County Parks and Recreation Bridges .................................................................... 26 Glossary of Bridge Terms ........................................................................................................ 27 Appendix A – 2018 Snohomish County Bridge Inventory (includes short span bridges) ........ 30 Appendix B – 2018 Snohomish County Flood Watch Bridges ................................................ 38 Appendix C – 2018 Snohomish County Seismic Lifeline Route Bridges .................................. 40 Appendix D – 2018 Snohomish County Parks and Recreation Bridges .................................. 44 Snohomish County Public Works | 2018 Annual Bridge Report | Page 3 Acronyms The following is a list of common acronyms widely used in the bridge inspection field: ADT Average Daily Traffic BIRM Bridge Inspector’s Reference Manual BRAC Bridge Replacement Advisory Committee EV Emergency Vehicles FC Fracture Critical FHWA Federal Highway Administration FO Functionally Obsolete HBRRP Highway Bridge Replacement and Rehabilitation Program NBIS National Bridge Inspection Standard RCW Revised Code of Washington RID Road Improvement District SD Structurally Deficient SID Structure Identification Number SR Sufficiency Rating SUV Single Unit Vehicles UBIT Under Bridge Inspection Truck WAC Washington Administrative Code WSBIM Washington State Bridge Inspection Manual WSBIS Washington State Bridge Inventory System WSDOT Washington State Department of Transportation Snohomish County Public Works | 2018 Annual Bridge Report | Page 4 Council Districts and Bridge Location Map 2018 COUNCIL DISTRICTS NATE NEHRING SAM LOW Snohomish County Public Works | 2018 Annual Bridge Report | Page 5 Quilceda Creek Bridge 582 built in 1940. Riley Slough Bridge 52 built in 1970. County Bridge Maintenance installing steel County Bridge Maintenance H-pile for temporary bent to help prevent bridge replacing timber stringers, deck plants, from flexing under heavy truck traffic. abutment planks and cap. Pilchuck River Bridge 633 built in 1948. County Bridge Maintenance replacing failed strip seal expansion joint with Emseal’s EMCRETE and Bridge Expansion Joint System (BEJS) at the west end abutment. Jordan Creek Bridge 214 built in 1981. See additional images of Bridge 633 on pages 8 and 23. County Bridge Maintenance removing sections of asphalt overlay and timber deck planks for inspectors to evaluate the condition of a random sample of the bridge’s timber stringers to help determine the cause and solution for the failing asphalt. Snohomish County Public Works | 2018 Annual Bridge Report | Page 6 Executive Summary This report has been completed in compliance n Snohomish County provided bridge inspection with WAC 136-20-060, which requires that each services for 34 city-owned bridges in 2018. County Road Engineer furnish a written report of n A total of 37 major bridge repair work orders the county’s bridge inspection efforts to the county were completed by Snohomish County legislative authority. It is also the intention of Maintenance crews. this report that information presented here be incorporated into a comprehensive program strategy to preserve

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