USACE Levee Safety Meeting FEMA Overview

Transcription

1 USACE Levee Safety Meeting FEMA Overview Christine Gaynes, CFM FEMA Region V Roger Denick, PE, CFM FEMA Region V Service Center

2 Agenda FEMA Region V Overview FEMA Levee Program Levee Guidance Transformation FEMA Region V/USACE District Coordination 1

3 FEMA Regions 2

4 FEMA Region V Overview Region V Six States (Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin 524 Counties 12 USACE Districts 1,177 levee systems FEMA Region V and Louisville District 146 counties in three states 195 levee systems 3

5 FEMA Region V Staff Mitigation Division FEMA Mitigation Division Mary Beth Caruso, Director HMA Branch Anna Pudlo, Branch Chief FMI Branch Eric Kuklewski, Branch Chief RA Branch Melissa Janssen, Branch Chief 4

6 FEMA Region V Risk Analysis Relevant USACE Contacts FEMA Risk Analysis Branch Melissa Janssen, Branch Chief FEMA Region V Service Center (RSC) STARR II Letter of Map Revision (LOMR) STARR II Illinois and Michigan Ken Hinterlong Roger Denick Stephanie Nurre Daven Patel Sonal Kulkarni Alex Haptemariam Minnesota and Wisconsin Sarah Hayman Indiana and Ohio Christine Gaynes 5

7 The Risk MAP Goals and Objectives Risk MAP Program Objectives Through collaboration with State, Local, and Tribal entities, Risk MAP will deliver quality data that increases public awareness and leads to action that reduces risk to life and property. 6

8 Phases of a Production Project Discovery Public engagement to gather needs Date Development H&H modeling and workmap development Preliminary release of preliminary Flood Insurance Rate Maps and Study to communities for review Post Preliminary Processing Community engagement, Comment/Appeals processing, releasing final products to community, and adoption. Discovery Data Development Preliminary PPP 7

9 Risk MAP Program Product Comparisons Traditional Regulatory Products Flood Risk Products DFIRM Database Traditional products are regulatory and subject to statutory due-process requirements Flood risk products are nonregulatory and are not subject to statutory due-process requirements 8

10 FEMA Regulatory Products Two mechanisms for updating regulatory data FEMA production Study - anticipated timeline 5-8 years Watershed County Physical Map Revision (PMR) Letter of Map Revision (LOMR) anticipated timeline 6-9 months Through MT-2 Process 9

11 USACE Districts in Region V 10

12 Levees in Region V/Louisville District 11

13 FEMA AND LEVEES 12

14 Levee Roles 13

15 FEMA s View of Levees (Risk) 14

16 FEMA s Role - Levees FEMA s role is mapping levee-related flood risk and accredits levees for mapping purposes only. FEMA only accredits levees based on the certification documentation provided by the community or other interested party FEMA does not own, operate, maintain, inspect, or certify levees or flood control systems 15

17 Levee Options Accredited Provisionally Accredited 2 year deferment Non Accredited Sound Reach Freeboard Deficient Overtopping Structural Based Inundation Natural Valley 16

18 FEMA Identification of Levees To be shown as providing a reduced risk of flooding from the Base Flood Event (1% Annual Chance Event) on the updated FEMA Flood Insurance Rate Maps (FIRM)s New or Improved Levees Letter of Map Revision (LOMR) Existing Levees Provisionally Accredited Levee (PAL) process Must be previously shown as providing protection Levees (LOMR or PAL) must meet requirements of 44 CFR to be shown as accredited and providing a reduced risk. 17

19 Levee Accreditation Once FEMA receives levee certification package from a community, levee owner: FEMA performs a completeness review FEMA accredits levees based on certification submittal findings received FEMA reviews against 44 CFR FEMA accreditation review checklist is included in February 2018 Levee Guidance 18

20 Levee Certification Certification documentation should: Document that levee or flood control system meets Federal design, construction, maintenance, and operations standards to provide protection from a flood of 1% annual chance or greater Standards are outlined in 44 CFR Be based on investigations and review of the current levee condition by a registered professional FEMA Flood Insurance Rate Maps (FIRMs) are based on current conditions and reflect the existing risk. 19

21 Accreditation Requirements Listed in CFR (a) General Requirements 65.10(b) Design Requirements 65.10(c) Operations Plans 65.10(d) Maintenance Plans 65.10(e) Certification Requirements 20

22 65.10(b) Design Requirements 65.10(b)(1) Freeboard 65.10(b)(2) Closures 65.10(b)(3) Embankment Protection 65.10(b)(4) Embankment and Foundation Stability 65.10(b)(5) Settlement Analysis 65.10(b)(6) Interior Drainage 65.10(b)(7) Other Design Criteria 21

23 The PAL Process Provisionally Accredited Levee (PAL) designation will be given to those levees that FEMA believes can provide the level of protection but for which data verifying this is not readily available Community must sign an agreement to provide FEMA with levee certification by the end of a two year period The documentation must show that the levee meets standards set forth in FEMA s Code of Federal Regulations (Part 65.10) Preliminary maps will be issued with area behind levees shown as a Zone X (shaded) and PAL annotation will be added At the end of the two year period, if the levee can be certified, FEMA will show it on the map as providing protection) 22

24 Analysis and Mapping Procedure for Non-Accredited Levee Systems Approach Document Finalized July 2013 Operation Guidance Finalized September

25 Analysis and Mapping Procedure for Non- Accredited Levee Systems Interactive stakeholder engagement throughout the analysis and mapping process: FEMA will engage community officials and decision makers in a collaborative discussion A suite of analysis and mapping procedures of the hazard associated with levees will be reviewed with the interested parties Intention is to recognize of the uncertainty associated with hazard identification behind levees New Development Allows communities to split a levee system into distinct reaches that are analyzed based on the attributes of the specific reach 24

26 Analysis and Mapping Procedure for Non- Accredited Levee Systems Sound Reach Method Description A continuous section of a levee system that has been designed, constructed, and maintained to withstand the flood hazards posed by a 1 percent annual chance flood, in accordance with the standards in 44CFR65.10 of the NFIP regulations. Freeboard Deficient Applied if levee or floodwall height is at least equal to 1 percent annual chance flood but otherwise is unable to meet freeboard standards. Must meet all other design criteria related to foundation stability, settlement, embankment protections and closure structures. Operation and Maintenance Plans, including documented inspection, are also required. Overtopping Approach Applied when the BFE is above the top of levee or floodwall for a reach and it can be demonstrated that the 1 percent-annual-chance flood will not cause structural failure of the levee. Requires development of an unsteady hydraulic model to allow overtopping of the levee. Structural-Based Inundation Natural Valley In levee reaches where the BFE is above the top of levee or floodwall and there is a known structural deficiency or a lack of data to support one of the other procedures mentioned above, the Structural-Based Inundation Procedure may be used. This method involves defining the inundation extents resulting from breaches along the levee reach during the 1-percent-annual-chance flood. Can be applied to all non-accredited levee reaches to determine the Special Flood Hazard Area (SFHA) or to determine the Zone D extents when freeboard deficient, sound reach, overtopping, or structural-based inundation procedures are implemented. 25

27 The Process Phase 1 Phase 2 Phase 3 26

28 FEMA LEVEE GUIDANCE UPDATES 27

29 Fall 2017: Guidance Transformation - Levee New or Significant Changes: Inclusion/development of guidance on: Levee data inventory Clarification of accreditation requirements Mapping considerations for non-levee features FEMA and Other Federal Agencies coordination; focus on USACE References to resources outside of FEMA s Risk MAP program Notes: Transforms and supersedes existing Risk MAP program guidance on: Provisionally Accredited Levees Analysis and mapping of non-accredited levees Does not replace: Levee Seclusion guidance Zone A99 and Zone AR Determinations guidance Levee-Specific Non-Regulatory Flood Risk Dataset guidance already available Related templates are also being updated as part of this transformation 28

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31 Fall 2017: Guidance Transformation - Levee Chapters: 1. Levee Overview 2. Glossary 3. Levee Data Inventory 4. Accredited Levee Systems 5. Provisionally Accredited Levee Systems 6. Non Accredited Levee Systems 7. Non-levee reaches and Non-levee features 8. FEMA and Other Federal Agency Coordination 30

32 Fall 2017: Guidance Transformation - Levee Chapter 3 Levee Data Inventory National Levee Database Identification of Levees FEMA Regulatory Levee Data Tracking Levee Accreditation Status Reporting Levee System Updates Levee Data Storage Requirements 31

33 USACE National Levee Database 32

34 Fall 2017: Guidance Transformation - Levee Chapter 4 Accredited Levee Systems 44 CFR Requirements Additional Levee Accreditation Considerations Levee System at Tie In Considerations Other Federal Agency Submittals (USACE Risk Assessments) Continued Accreditation Expiration of Data Certification or Endorsement Updated Modeling along an Accredited Levee Noted Structural of Maintenance Deficiencies Levee Accreditation Reviews Accredited Levee Mapping and Notes 33

35 Fall 2017: Guidance Transformation - Levee Chapter 4 Levee Tie in Considerations 34

36 Fall 2017: Guidance Transformation - Levee Chapter 7 Non-Levee Reaches and Non-Levee Features 35

37 FEMA REGION AND USACE DISTRICT TOUCH POINTS 36

38 FEMA Coordination with USACE Occurs at the following areas Identification of Levees Accreditation/Non-Accreditation of Levees Long term risk awareness 37

39 Identification of Levees At onset of FEMA Risk MAP project, will identify flood control structures and current risk status If levee is in USACE program, reach out to relevant district to determine current status Leverage National Levee Database for data including top of levee for research Prior to offering PAL or continued accreditation, get concurrence from USACE on path forward. 38

40 Accreditation/Non-Accreditation of Levees Coordinate/invite USACE to any public meeting regarding levee system Internal Core Team meeting before engaging community for consistent message Allow USACE time at meeting to discuss any concerns with community if needed If levee is ineligible in USACE program, coordinate if any unacceptable items would align with accreditation requirements 39

41 Accreditation/Non-Accreditation of Levees 44 CFR 65.10(e) Certification Requirements: Data submitted to support that a given levee system complies with the structural requirements set forth in paragraph 44 CFR 65.10(b)(1-7) of this section must be certified by a professional engineer. In lieu of these structural requirements, a Federal agency with responsibility for levee design may certify that the levee has been adequately designed and constructed to provide protection against the base flood. 40

42 Accreditation/Non-Accreditation of Levees FEMA Levee Guidance February 2018 Section Certification Requirements (Permits and Other State and Local Requirements) The submittal must adequately address all applicable Federal, State, and local laws regulations and requirements, including, but not limited to, Federal, State, and local floodplain management laws, environmental laws, and permit requirements. This can be verified through communication with the requestor. A record of these communications must be kept on file for future reference. 41

43 Long Term Risk Awareness of Levees FEMA Levee Guidance February 2018 Section Expiration of Data Certification or Endorsement A certifying engineer or Federal Agency may choose to place an expiration date on the use of data and documentation for accreditation of a levee system. At no time shall a levee system with an expired certification of data be remapped as accredited without an updated documentation and a certification of data by a Registered Professional Engineer or endorsement from a Federal Agency. 42

44 Long Term Risk Awareness for Levees FEMA Levee Guidance February 2018 Section Noted Structural or Maintenance Deficiencies FEMA reserves the right to re-evaluate the accreditation status of a levee system if structural or maintenance deficiencies are noted that may cause concern over the validity of the current flood hazard noted on the FIRM. This re-evaluation of the levee status on the FIRMs may be triggered based on inspection reports of State or Federal agencies or performance of the levee system in the context of a 1-percent-annual-chance flood event or less. 43

45 Other FEMA Region/USACE District Touch Points USACE Levee Improvements Updated/New Hydrology/Hydraulics within active FEMA projects Awareness of USACE/Community Levee Engagement Risk Screenings Coordination on Joint Training for Communities 44

46 Last Thoughts on Levees FEMA DOES NOT implement or fund the: Design, construction, operation, maintenance or certification of levee systems; Examination or evaluation of levees; OR Determination of how a structure or system will perform in a flood event FEMA relies on levee owners or other parties seeking recognition of a levee to provide information needed to clearly represent the flood risks in areas behind levees 45

47 Questions? Christine Gaynes FEMA Region V Christine.Gaynes@fema.dhs.gov Roger Denick FEMA Region V Service Center Roger.Denick@stantec.com 46

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