A 2018 (10 Year) Review of our PIEVC 2008 Placentia NL Coastal Public Infrastructure Vulnerability Evaluation Case Study

Transcription

1 43 rd Canadian Land Reclamation Association (CLRA) and 2018 Atlantic Reclamation Conference (ARC) Planning for the Annual 1:100 Year Event Miramichi NB :30 9:00 ADT A 2018 (10 Year) Review of our Evaluation Case Study Cameron Ells, P.Eng. cells@ Cameron Consulting Incorporated

2 Premise Where climate has influenced infrastructure design, development, operations, and management decision making - perceived changes in future climate & other similar impacts, can impact or compromise the various infrastructure - climate - performance criteria relationships.

3 Summary of 2008 PIEVC Placentia NL Would it be different if done in 2018? Infrastructure of Interest: Breakwater; Sea Wall; Flood Plain; Road & Culvert Damaged or at risk coastal infrastructure (e.g Tropical Storm Chantal) Applied new PIEVC Protocol evaluation Project results incl. Year 2050 IDF curve During the 2010 Hurricane Igor, the recently replaced Placentia area infrastructure performed well.

4 PIEVC Protocol Version PG-10.1 (2015) Original Protocol for PIEVC (March 2007)

5 PIEVC Protocol Version 7.1 (Oct. 2007) PIEVC Placentia NL Report (March 2008) PIEVC Engineering Protocol for Climate Change Infrastructure Vulnerability Assessment (Revision 7.1) October 2007

6 Owners, Operators, Project Stakeholders 2008 Placentia NL Project Stakeholders NL Gov.t Departments Municipal, Environment, and Transportation Town of Placentia NL & associates Consultant Team (NL, NB, NS) PIEVC, Engineers Canada, Ouranos and Natural Resources Canada

7 Breakwater (Beach Stone & Timber)

8 2008 Placentia Case Study (5 Steps) 1) Reviewed Infrastructure of Interest 2) Opinions on climate and other change 3) Identified relevant performance criteria 4) Prioritize and Evaluate Relationships: Infrastructure / Change / Performance 5) Conclusions and Recommendations for design & operation

9 1. Breakwater (Beach Stone & Timber) 2. Sea level & storm surge m 3. Erosion monitoring consequences 4. Baseline information and beach profile changes 5. Involve Town, School, and SmartBay.ca

10 Flood Wall (Inner Harbour; Steel Pile)

11 2008 Placentia Case Study (5 Steps) 1) Reviewed Infrastructure of Interest 2) Opinions on climate and other change 3) Identified relevant performance criteria 4) Prioritize and Evaluate Relationships: Infrastructure / Change / Performance 5) Conclusions and Recommendations for design & operation

12 1. Flood Wall (Inner Harbour; Steel Pile) 2. Sea level & storm surge m 3. Monitoring & maintenance consequences 4. Baseline information & instrumentation 5. Involve Town and NL Transportation

13 Downtown Flood Plain (e.g. Town Hall)

14 2008 Placentia Case Study (5 Steps) 1) Reviewed Infrastructure of Interest 2) Opinions on climate and other change 3) Identified relevant performance criteria 4) Prioritize and Evaluate Relationships: Infrastructure / Change / Performance 5) Conclusions and Recommendations for design & operation

15 1. Downtown Flood Plain (~Town Hall) 2. Sea level & rain fall m (short term) in groundwater 3. Storm sewer & policy consequences 4. More flood policy activity by Town 5. Alter storm sewer design & construction

16 Road & Culvert System (Route 100)

17 2008 Placentia Case Study (5 Steps) 1) Reviewed Infrastructure of Interest 2) Opinions on climate and other change 3) Identified relevant performance criteria 4) Prioritize and Evaluate Relationships: Infrastructure / Change / Performance 5) Conclusions and Recommendations for design & operation

18 1. Road & Culvert System (Route 100) 2. Rain +12% & Land use +40% (+52%) culvert design consequences 4. Maintenance & resource consequences 5. Impact 2008 road & culvert construction

19 Placentia PIEVC Case Study Legacies PIEVC Report & Protocol Revisions Local IDF curve info (2008 & 2050) for the NL Transportation Dept. designers & others User friendly climate change information Management and monitoring rationales Would the 2008 & 2018 results be similar?

20 For a 2018 Placentia NL evaluation Would the 2008 & 2018 results be similar? Background for Infrastructure of Interest Flooding in 1960 s, 70 s, and 80 s 1990 s new Breakwater & Flood Wall Route 100 damaged in Aug 2007 Storm Relationships: Infrastructure Performance Change (Climate and Other)

21 For a 2018 Placentia NL evaluation Would the 2008 & 2018 results be similar? Infrastructure of Interest Performance: Storm damage over year period Placentia NL Infrastructure in PIEVC case study has since performed well (IDF curves) A big flood expected by NL Environment (but not our PIEVC report) has not yet come Tourist inspired wooden boardwalk structures on Breakwater (new & replaced)

22 For a 2018 Placentia NL evaluation More information available in 2018: More available off the shelf information (e.g. fed. funded regional ACASA reports; UWO (Western) IDF curve making tool) Better pattern of communications between stakeholders (e.g. levels of public sector) Local plans (e.g. flood protection; climate change action; LIDAR; asset management)

23 For a 2018 Placentia NL evaluation Similar Climate & Other Change values: Similar sea level elevation change rate Similar wind assisted storm surge values Similar process in arriving at opinions on changes to IDF curves for Year 2050 Different 2050 storm water runoff coefficient (ie. New Long Harbour nickel facility for Voisey s Bay ore, not Placentia area)

24 For a 2018 Placentia NL evaluation Climate and Other Change Influences Change in relative sea level elevation (e.g. water rising and / or land lowering - ice age) Natural variability (North Atlantic Oscillation) and climate change trends Changes in sea ice cover patterns affecting wear and tear of coastal infrastructure elsewhere; and by Labrador, precipitation

25 For a 2018 Placentia NL evaluation Would the 2008 & 2018 results be similar? Expect similar versions in 2018 & 2008 Similar Protocol consultation mechanics Similar climate and other change opinions Similar conclusions and recommendations In 2018, better available information, monitoring, & stakeholder communications

26 Growing Grapes in Nova Scotia: a personal climate change adaptation : )

27 Thank You for this opportunity For further discussions, please contact: Cameron Ells, P.Eng. Cameron Consulting Incorporated Halifax NS Canada