U.S. Coast Guard (USCG) Superstorm SANDY Resiliency Reconstruction

Transcription

1 U.S. (USCG) Superstorm SANDY Resiliency Reconstruction LCDR Mark Braxton, PE U.S. Facilities Design and Construction Center Maritime Risk Symposium 14 November 2016

2 ABSTRACT The USCG is executing a capital reinvestment plan to enhance / replace infrastructure decimated by Hurricane Sandy. The wide-spread devastation influenced Congress to appropriate special funding ($170M) to rebuild and improve the resilience of mission critical facilities the along the northern east coast. Operational needs were validated in order to establish facility requirements vital to supporting maritime security. Regional plans were developed to enhance the resiliency and sustainability of new shore facilities, providing superior structures to support USCG personnel & operations. This presentation highlights some of the flood plain management mitigation practices that will hopefully eliminate massive rebuilding efforts following future storm events. 2

3 USCG Hurricane Response History Following recent severe weather events, critical coastal facilities were left unable to support mission objectives. Congress appropriated special funds to rebuild: $206M following KATRINA $300M following IKE $170M following SANDY 3

4 Hurricane Sandy Devastation STA New York in Staten Island, NY 4

5 Hurricane Sandy Devastation STA Atlantic City, NJ 5

6 Hurricane Sandy Devastation STA Sandy Hook, NJ waterline 6

7 USCG Hurricane Response History USCG does not build facilities to allow personnel to shelter in place during an extreme weather event. Strategy is to build resilient structures that survive an event and allow quick reconstitution. 7

8 Resiliency Way Forward Establishment of Flood Risk Management Standard Policy: POTUS recently amended Executive Order 11988, Flood Plain Management To defend against the effects of climate change, resilience of Federal and community assets must be improved SILC Strategy: Phase 1: Create POAM with cost estimate to identify all CG Stations located within 100 yr & 500 yr flood plains. (Occurred in FY15 as part of larger effort.) Phase 2: FY16/17, document and prioritize vulnerabilities when considering sea level rise Typical 500 & 100 Year Flood Plain Map 8

9 Homeland Siting Options After SANDY, the USCG used one of three options to establish siting plans for damaged facilities: 1. Defend against the weather elements 2. Abandon the current location and relocate to higher elevation 3. Adapt the facilities to be more resilient 9

10 Primary Resiliency Features Wind Resistance Flood Elevation Material Selection Emergency Power 10

11 Hurricane Sandy AC&I Construction 11

12 Station New York Recap Multi-Purpose Building 12

13 Station Atlantic City Recap Boat Maintenance Facility 13

14 Station Manasquan, NJ Recap Multi-Mission Building w/ Boat Maintenance Facility 14

15 Homeland Station Sandy Hook, NJ Recap Multi-Mission Building 15

16 Homeland Station Sandy Hook, NJ Recap Multi-Mission Building 16

17 Homeland Station Sandy Hook, NJ Recap Small Arms Firing Range 17

18 Homeland Station Sandy Hook, NJ Recap Boat Maintenance Facility 18

19 Summary When impractical to build above flood zone, ground floor designed to survive flood effects. Storage for first floor equipment integrated into 2 nd floor layout. Resilient features incorporated to expedite post-storm recovery. Incorporate historical features into designs to minimize impacts to community or historical landmarks. Future command & control facilities be built to the ASCE/ IBC Risk Category IV standards. 19

20 Looking Forward Proactive measures to Build Resiliency Ø CG Vulnerability Assessment (SIVA) Enterprise assessment of shore footprint to natural hazard vulnerabilities including coastal storms, seismic, tornado, tsunami, drought, and potential sea level rise scenarios SIVA Phase I complete December 2016 Ø Whole of Community Approach mission support depends on community resilience (transportation, schools, housing ) Promote intergovernmental and community approaches and collaborative solutions to resiliency 20

21 Questions Should the build structures to Category IV standards? What is the cost premium for that feature? Should the create its own design standard for constructing in coastal hazard zones? With design standards changing more frequently, what influence factors are most important in facility design? 21