1. Julie Eaton, PE Frank Ricciardi
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
Lead Resiliency Engineer Vice President & Discipline Leader Weston & Sampson Weston & Sampson

2. PUBLIC REALM, PRIVATE DEVELOPMENT
Why design standards focus so much on what will be private projects
What developers are already doing (raising everything up, self protection)
Constrained rights-of-way – issue with ownership – how do we leverage, protect behind coastal properties
Guidance on what the City wants to see to accept designs – co-benefits and public assets

3. Take advantage of the investments and opportunities happening today to get the best outcome for tomorrow
Protection for the ROW (because sponsored by PWD) but really for all projects happening in the flood zone
Redirect investments and flood protection already in the projects due to insurance and finance requirements to serve a wider public benefit while meeting or exceeding property protection and enhancing overall project

4. (A COMPLEMENTARY APPROACH)
TAKING ACTION TODAY
(A COMPLEMENTARY APPROACH)
Take incremental action while planning long-term solutions
Manage projects with multiple jurisdictions and private owners
Maintain mobility and access, protect critical transportation

5. FOUR SAMPLE FLOOD BARRIER TYPES FLOOD BARRIER DESIGN CONSIDERATIONS
CLIMATE DESIGN ADJUSTMENTS
Clearly stating what you are designing for – 2070 levels (about 4 feet – ft freeboard) with adaptation for another 2 feet
Helping you select what barrier or treatment is most appropriate
Included samples of what we are seeing most often
Not proscriptive, but shows what will make things smoother going through City approval process
Forefront O&M requirements

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

7. 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
Clearly stating what you are designing for – 2070 levels (about 4 feet – ft freeboard) with adaptation for another 2 feet
Helping you select what barrier or treatment is most appropriate
Included samples of what we are seeing most often
Not proscriptive, but shows what will make things smoother going through City approval process
Forefront O&M requirements
Cost

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

9. 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

10. DESIGN CONSIDERATIONS

11. SAMPLE VEGETATED BERM BARRIER

12. SAMPLE VEGETATED BERM BARRIER

13. SAMPLE HARBORWALK (SEAWALL) BARRIER

14. SAMPLE HARBORWALK (SEAWALL) BARRIER

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

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

17. SAMPLE RAISED ROADWAY BARRIER
Option 1

18. 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

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

20. SAMPLE RAISED ROADWAY BARRIER
Option 2

21. REAL WORLD APPLICATION: MIAMI BEACH
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

22. 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

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

24. DEPLOYABLE FLOOD BARRIER
Design Considerations for the Site
► Barrier extent/connection to site
► Available open space (deployment or storage)
► Accessibility
► Terrain conditions
► Offsite impacts
Design Considerations for the Product
► Physical Characteristics
► Structural Properties
► Operational Requirements
► Industry Warranty, Certification, Testing
Not intended for long-term use
Manpower/equipment available before/during/after storm (Competing needs and demands)
Lead time
False Alarm Costs
Reliability and consequences of failure
OPERATIONAL CAPACITY

25. DEPLOYABLE FLOOD BARRIER DEPLOYABLE FLOOD BARRIER

26. 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

27. thank you
westonandsampson.com