Martha’s Vineyard Hospital Resilience Project Climate Vulnerability Assessment and Route Prioritization Advisory Committee Meeting ~ February 14, 2024
Our Team Dean Audet, PE Senior Vice President, Fuss & O’Neill Technical Advisor 30+ Years of Experience • Flood Resilience • Stormwater Management • Nature-based Solutions
Brittany Hoffnagle Climate Resilience, Woods Hole Group Route Analysis 8+ Years of Experience • Climate Resilience Planning • GIS • Route Analysis
Eileen Gunn, AICP Associate, Fuss & O’Neill Project Manager 30+ Years of Experience • Climate Resilience PM • Transportation Planning • Grant Management
Connor Agro, PE Transportation Engineer Conceptual Design 5+ Years of Experience • Roadway Design • Complete Streets • Safety Analysis Adam Finkle, BS, MS Coastal Scientist, Woods Hole Group Nature-based Solutions 10+ Years of Experience • Ecological Restoration • Bioengineering • Coastal Resiliency
Pat Tierney, PE Transportation Engineer Conceptual Design 10+ Years of Experience • Roadway Design • Climate Resilience • Safety Analysis
Joseph Famely, MEM Senior Environmental Scientist, Woods Hole Group Vulnerability, Resilience 20 Years of Experience • Sustainability Planning • Risk Management • MVP Trainer
Agenda 1. Project Status/Schedule Update – 15 min a. Survey Results - Common Routes/Criticality Parameters
2. Vulnerability Assessment Recap and Discussion –20min 3. Route Analysis Presentation -25 min a. Discussion/Prioritization - 40 min
4. Next Steps – 10min a. Feasibility analysis -Four prioritized Routes b. Next Advisory meeting
Project Overview The goal of this project is to make transportation access to the hospital more resilient during current and future flooding events associated with sea level rise and storm surge. • Provide an understanding of the current and projected flood risk along the key transportation routes used by EMS to access the hospital; • Gain an understanding of critical care service needs; • Conduct alternative route analysis; feasibility of road raising; and analysis of nature-based solutions to reduce risk; and
• Design conceptual level roadway adaptation alternatives for a more resilient transportation network.
Meeting Objective The objectives of this meeting are to: • Provide an understanding of the current and projected flood risk along the key transportation routes used by EMS to access the hospital; • Present the Route Analysis results and Critical Factors for decisionmaking; • And, have the Advisory Committee come to consensus on Four Prioritized Route Segments for the next project phase – feasibility analysis (risk reduction).
Project Area The project limits include the following major routes that serve the hospital and where access is threatened: • Barnes Road • Wing Road • County Road • Eastville Avenue • Temahigan Road • New York – Lake Avenue • Circuit Avenue • Dukes County Avenue • Beach Road (at Eastville Beach and Hospital Entrance)
Criticality Factors for Prioritizing 1. Response Times – (Any additional time is undesirable) 2. Critical Routes – Next slide 3. Detour Routes (Travel Time)
4. Fleet Vehicle Thresholds (driving thru flooded conditions) – 8in 5. Vulnerability (Storms and Future “Sunny Day” flooding) ✓ Depth of Flooding ✓ Duration of Flooding ✓ Length of Road Segment Flooded
Island-Wide EMS Critical Routes Summary Tri-town (and Chilmark) EMS Routes –
State - Five Corners -Beach Road
Old County – State – Five Corners -Beach Rds
Edgartown-West Tisbury–Barnes –County–Eastville -Beach Rds Five Corners Detour – Edgartown-Vineyard HavenBarnes…, or County to Eastville- Beach or Back Entrance
Island-Wide EMS Critical Routes Summary Oak Bluffs EMS Routes –
County-Eastville-Beach Rd
New York to Temahigan – Beach Rd
Beach Rd Detour – Back Hospital Entrance
Island-Wide EMS Critical Routes Summary Edgartown EMS Routes –
Edgartown-Vineyard Haven-County-Eastville-Beach Rds.
TROPICAL / EXTRATROPICAL STORMS
SEA LEVEL RISE
LANDSCAPE
Includes relevant physical processes: sea level rise, tides, storm surge, wind, wave setup / run-up / overtopping, future climate scenarios
PROBABILISTIC / HYDRODYNAMIC MODEL
FLOOD PROBABILITY
FLOOD DEPTH
CHANGING CLIMATE
ELEVATION
Future version to incorporate coastal erosion
FLOOD DURATION
FLOOD VOLUMES
FLOOD PATHWAYS
WINDS
WAVES
CURRENTS
OUTPUTS
INPUTS
Massachusetts Coast Flood Risk Model (MC-FRM)
10 0%
50 %
30 %
25 %
20 %
10 %
5%
2%
1%
0. 5%
0. 2%
0. 1%
Vulnerability Assessment Recap
2030
50 %
30 %
25 %
20 %
10 %
5%
2%
1%
0. 5%
0. 2%
0. 1%
Flood Probability Assessment Methods
10 0%
COASTAL FLOOD EXCEEDANCE PROBABILITY
2030 Roadway Vulnerability
2050 Roadway Vulnerability
2070 Roadway Vulnerability
2030 Ambulance Flood Restrictions
H
2030 1% AEP Flood Residence Time
MC-FRM Annual Coastal Flood Exceedance Probability
MC-FRM Annual Coastal Flood Exceedance Probability
Road Network Analysis Parameterization
Priority Hospital Routes – no flooding
Hospital Route Flood Impact Summary
Oak Bluffs Ferry
3:57
2:57
4:31
East Chop Road
2:44
2:58
3:00
Harthaven
7:17
0:31
2:42
Barnes Road
7:14
0:30
5:28
Edgartown-West Tisbury Road
11:00
0:30
5:06
County Road (North at Wing Rd)
2:54
0:30
4:06
County Road (South at E-VH Rd)
6:54
0:30
3:54
Edgartown (Upper Main St)
13:54
0:30
3:54
Linton Avenue
1:56
0:30
1:46
-
50% 50% 50%
1%
1%
Seaview Avenue‡
1%
Dukes County Way
1%
Lake Avenue
1%
New York Ave
1%
County Road
13:26
Eastville Avenue
8:44
East Chop Drive
2:58
Barnes Road
Added by 2030 1% AEP Flooding
Beach Road (OB)
Vineyard Haven
Existing Conditions
Added by 2030 50% AEP Flooding
Beach Road (VH)‡
Origin
Flooded Segments Affecting Route
Five Corners‡
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‡ Segment included in other resiliency projects
Vulnerable Roadway Segment Prioritization Factors
Road Segment
MassDOT Annual average daily traffic (AADT)
Five Corners‡ Beach Road (VH)‡ Beach Road (OB) Barnes Road East Chop Drive Eastville Avenue County Road New York Ave Lake Avenue Dukes County Ave Seaview Avenue‡
9762 9762 9762 1000 1000 974 1000 9762 9762 1000 N/A
Vulnerable Length (ft) Mean High Water 2030 -
2050 1320 540 280 120 720 600 240
2070 1720 4100 1980 2300 220 60 1540 1320 1860
Residence Time (hrs)
2030 >8" Flood Depth 50% AEP 1720 3100 640 1100 160 1380 920 900
1% AEP 1720 4100 1780 320 2580 920 1120 180 1620 1660 2880
1% AEP >8" Duration 2030 8.9 9.2 8.2 1.0 8.6 4.0 3.6 6.3 2.0 7.7 6.9
2050 ∞ ∞ ∞ 2.4 ∞ 6.5 6.0 8.6 3.6 ∞ 9.1
2070 ∞ ∞ ∞ 4.1 ∞ 8.9 8.2 ∞ 6.2 ∞ ∞
‡ Segment included in other resiliency projects ∞ Segment includes area of potential future high tide flooding
Prioritization
Next Steps: Roadway Adaptation Alternatives Analysis
Prioritized Segments Feasibility Analysis Data Collection • GIS boundaries, Topographic Lidar, and Environmental Resources have been obtained • No planimetric data available - Field Verification needed Feasibility Analysis • Analyze potential elevations, nature-based solutions and relative risk reduction • Analyze side slope configuration and impacts − Natural resource, Private Property
• High level Cost and Permitting Considerations • Propose location-specific Design Flood Elevations (DFEs) and convey resultant risk reduction • Prepare Technical Memo • Present to Selectboard/Public event
Conceptual Design Conceptual Design • Concept Design for Four Priority Segments − Plans, Profiles, and Sections − Adaptability for the future − Cost Estimates
Nature Based Solutions (NBS) • Identify where NBS can be implemented • Produce concept level designs
SAVE THE DATE Next Advisory Mtg ~April 24, 2024 (Earth Day) 10-12pm Feasibility and Alternatives Project Website
https://tinyurl.com/MVHospitalResilience
Engineers | Scientists | Planners
Thank You! Eileen Gunn, Project Manager egunn@fando.com
www.fando.com
Engineers | Scientists | Planners