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boston/departments/public-works/climate-resilient-design-standards-and-guidelines

boston.gov/departments/public-works/climate-resilient-design-standards-and-guidelines. Katie Choe, CCM. Chief Engineer/Director of Construction Management City of Boston- Public Works Department. Julie Eaton, PE Frank Ricciardi.

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boston/departments/public-works/climate-resilient-design-standards-and-guidelines

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  1. boston.gov/departments/public-works/climate-resilient-design-standards-and-guidelinesboston.gov/departments/public-works/climate-resilient-design-standards-and-guidelines Katie Choe, CCM Chief Engineer/Director of Construction ManagementCity of Boston- Public Works Department Julie Eaton, PE Frank Ricciardi Lead Resiliency Engineer Vice President & Discipline LeaderWeston & Sampson Weston & Sampson

  2. PUBLIC REALM, PRIVATE DEVELOPMENT

  3. Take advantage of the investments and opportunities happening today to get the best outcome for tomorrow

  4. TAKING ACTION TODAY (A COMPLEMENTARY APPROACH)

  5. SAMPLE FLOOD BARRIERS VEGETATED BERMS HARBORWALK FLOOD BARRIER TEMPORARY FLOOD BARRIERS RAISED ROADWAYS Note: All samples assumed a barrier height of 4 ft. for 2070 flood protection

  6. CLIMATE DESIGN GUIDELINE COMPONENTS CLIMATE DESIGN LOAD ADJUSTMENTS CONCEPT FOR FLOOD BARRIER DESIGN Design ►permitting strategy ► additional feasibility studies ► increase reliability ► incremental adaptation and timeline ► value creation, social impact, equity, & co-benefits O&M Barrier Selection Cost

  7. CLIMATE DESIGN ADJUSTMENTS GOAL: DESIGN FOR MIN. 2070 CONDITIONS WITH ABILITY TO GET 2+ MORE FT. FLOOD PROTECTION IN FUTURE 2030 2035 2060 2100 2050 2070 BASELINE FOCUS ON USEFUL LIFE OF INFRASTRUCTURE CLIMATE PROJECTIONS TAKEN FROM PREVIOUS STUDIES

  8. CLIMATE DESIGN ADJUSTMENTS • PROBABILITY OF FLOODING • DEPTH OF FLOODING • FLOOD DURATION • WAVE LOADING • CURRENT VELOCITIES Flooding during the March 2, 2018 Nor’easter at Langone Park & Puopolo Playground

  9. DESIGN CONSIDERATIONS

  10. SAMPLE VEGETATED BERM BARRIER

  11. SAMPLE VEGETATED BERM BARRIER

  12. SAMPLE HARBORWALK (SEAWALL) BARRIER

  13. SAMPLE HARBORWALK (SEAWALL) BARRIER

  14. IN-PROGRESS HARBORWALK (SEAWALL) BARRIER Flood protection cross-section – elevated boardwalk REAL WORLD APPLICATION: LANGONE & PUOPOLO

  15. SAMPLE RAISED ROADWAY BARRIER Option 1 Consider options to reduce to one-way traffic and add bike lanes, meet Complete Streets Standards

  16. SAMPLE RAISED ROADWAY BARRIER Option 1

  17. SAMPLE RAISED ROADWAY BARRIER • ► Sidewalk gutters (debris, stormwater runoff) • ► Snow removal problems • ► Poor lighting and personal safety • ► Accidents more deadly ► Vehicle emission pipes at head level of pedestrians (poor air quality ) ► ADA compliance ► Emergency accessibility ► Business and community health

  18. SAMPLE RAISED ROADWAY BARRIER Option 2 Consider options to reduce to one-way traffic and add bike lanes, meet Complete Streets Standards

  19. SAMPLE RAISED ROADWAY BARRIER Option 2

  20. SAMPLE RAISED ROADWAY • Streets flood due to regular rainfall as well as storm events • Raised streets are not a coastal barrier • MB plan to raise everything up—not just roadways REAL WORLD APPLICATION: MIAMI BEACH

  21. O&M AND COST CONSIDERATIONS NOT JUST BARRIER OPERATIONS AND MAINTENANCE CONSIDERATIONS! Case Study: Stormwater management for raised roadways in Sunset Harbor, Miami Beach, FL • ► energy costs for pump stations and system redundancy • ► reassigned or new staff (or contractors) to maintain the new pump stations, generators, treatment systems, and utilities associated with stormwater management • ► new O&M equipment needed for stormwater management • ► operations management support • ► staff training Elevated roads and pump station

  22. O&M AND COST CONSIDERATIONS NOT JUST WATER! SNOW & ICE! Source: Boston_January 2015_Shutterstock_Svitlana Pimenov

  23. DEPLOYABLE FLOOD BARRIER Design Considerations for the Site Design Considerations for the Product • ► Physical Characteristics • ► Structural Properties • ► Operational Requirements • ► Industry Warranty, Certification, Testing • ► Barrier extent/connection to site • ► Available open space (deployment or storage) • ► Accessibility • ► Terrain conditions • ► Offsite impacts OPERATIONAL CAPACITY

  24. DEPLOYABLE FLOOD BARRIER DEPLOYABLE FLOOD BARRIER

  25. BUILDING A RESILIENT BOSTON • PIC Currently Controls Applicability of Resilient Design Requirements for Projects • PWD Working with BPDA on Incorporating Standards into Design Review Process • PWD Developing City Policy to Ensure Consistent Implementation • PWD Sharing Standards with Neighboring Cities https://www.boston.gov/departments/public-works/climate-resilient-design-standards-and-guidelines

  26. thank you westonandsampson.com

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