Nor orth Sh Shor ore L Levee Cities of Aberdeen and Hoquiam Funding: • Chehalis River Basin Flood Authority Design Team: • KPFF Consulting Engineers • Watershed Science & Engineering • GeoEngineers • Maul, Foster, & Alongi
Existing C Conditions s – Flood Ri Risk (Dec ecem ember er 10, 10, 20 2015 high t tide ) F Street in Aberdeen Riverside Avenue in Hoquiam
Existing C Conditions s – Flood Ri Risk (Janu nuary 4 4-5, 5, 2 2015 015 rainfall e event ) Conger Street in Aberdeen Oak Street in Aberdeen
Existing C Conditions s – FE FEMA M Mapping (Blue = = S Speci cial F Flood ood Hazard Area)
Aberdeen a and Hoquiam c m currently p pay $ $1.78 millio illion in in annual N l NFIP p premiu iums (40.4% o of premiums ms paid i in Chehalis B Basin).
Paid id NFIP c cla laim ims in in Aberdeen en a and Hoq oquiam t m tot otal $6.5 millio illion sin ince 1 1978 (7% o of cla laim ims p paid id in in the C Chehalis B Basin since 197 1978).
Not ote: Trend s shows on ongoing l los oss of NFIP c coverage a e and t therefore less p le public licly ly a availa ilable le d data. Pos ossible e explanation ons f for or trend: Switch t h to pr private e po policies es t that a t are e • no not ba backed ed b by NFIP Low pr prices es a are enab e enabling cash sh • tran ansa sactions w s witho hout need f t need for mortga gage Sel Seller ers are e act cting a as pr private l e lender enders • Low rea eal es estate a e activi vity ( (ho homes a es are e • pa paid off a and few ne new m mortgages) es)
Living i in a Spec ecial Flood H Hazard Area ea • Properties are at risk for flooding. ($$$) • NFIP regulations add cost and complexity to development and redevelopment. • Redevelopment: If cumulative value of improvements made to a structure over past five years exceeds 50% of market value, structure must be brought into compliance with flood code. ($$$) • Flood insurance is mandatory with mortgages. • Rates are high and are increasing annually. ($$$)
Living i in a Spec ecial Flood H Hazard Area ea • Properties are at risk for flooding. ($$$) • NFIP regulations add cost and complexity to development and redevelopment. • Redevelopment: If cumulative value of improvements made to a structure over past five years exceeds 50% of market value, structure must be brought into compliance with flood code. ($$$) • Flood insurance is mandatory with mortgages. • Rates are high and are increasing annually. ($$$) ECONOMIC LOSS, STIFLED INVESTMENT, AND LOW PROPERTY VALUES
Living i in a Spec ecial Flood H Hazard Area ea • Properties are at risk for flooding. ($$$) • NFIP regulations add cost and complexity to development and redevelopment. • Redevelopment: If cumulative value of improvements made to a structure over past five years exceeds 50% of market value, structure must be brought into compliance with flood code. ($$$) • Flood insurance is mandatory with mortgages. • Rates are high and are increasing annually. ($$$) ECONOMIC LOSS, STIFLED INVESTMENT, AND LOW PROPERTY VALUES BUILD LEVEE AND DRAINAGE IMPROVEMENTS, GET OUT OF SFHA
Levee Remove 3 No North S Shore L 3,100 p 100 properties s from SFHA.
Des esign & gn & Con onstruct ction P Proces ess 1. Surveying, Modeling, & Analysis • Aerial photography and photogrammetry • On-ground topographic surveying • Bathymetric surveying • Hydrologic and hydraulic modeling • Geotechnical investigation 2. First Phase of Public Outreach, Government & Agency Coordination 3. Develop Preliminary Design & Science Package, Submit to FEMA 4. Receive Conditional Letter of Map Revision (CLOMR) – Important! 5. Second Phase of Public Outreach, Government & Agency Coordination 6. Final Design, Permitting, & ROW Acquisition 7. Construction Levee Certification & Letter of Map Revision (LOMR) Protected Areas Change from 8. SFHA to Zone X
Des esign & gn & Con onstruct ction P Proces ess 1. Surveying, Modeling, & Analysis • Aerial photography and photogrammetry • On-ground topographic surveying • Bathymetric surveying • Hydrologic and hydraulic modeling • Geotechnical investigation 2. First Phase of Public Outreach, Government & Agency Coordination 3. Develop Preliminary Design & Science Package, Submit to FEMA 4. Receive Conditional Letter of Map Revision (CLOMR) – Important! 5. Second Phase of Public Outreach, Government & Agency Coordination We are here. 6. Final Design, Permitting, & ROW Acquisition 7. Construction Levee Certification & Letter of Map Revision (LOMR) Protected Areas Change from 8. SFHA to Zone X
Wor ork Com Completed ed 1. Surveying, Modeling, & Analyses
Wor ork Com Completed ed 2. First Phase of Public Outreach, Government & Agency Coordination
Wor ork Com Completed ed 3. Develop Preliminary Design & Science Package, Submit to FEMA
Wor ork Com Completed ed 4. Receive Conditional Letter of Map Revision (CLOMR)
Upc pcoming T g Tasks 5. Second Phase of Public Outreach, Government & Agency Coordination 6. Final Design, Permitting, & ROW Acquisition 7. Construction 8. Levee Certification & Letter of Map Revision (LOMR) Protected Areas Change from SFHA to Zone X
Upc pcoming T g Tasks 5. Second Phase of Public Outreach, Government & Agency Coordination * 6. Final Design, Permitting, & ROW Acquisition 7. Construction 8. Levee Certification & Letter of Map Revision (LOMR) Protected Areas Change from SFHA to Zone X In progress, funded through Chehalis River Basin Flood Authority and State * Supplemental Capital Budget ($4.6 million).
Upc pcoming T g Tasks 5. Second Phase of Public Outreach, Government & Agency Coordination * 6. Final Design, Permitting, & ROW Acquisition 7. Construction 8. Levee Certification & Letter of Map Revision (LOMR) Protected Areas ** Change from SFHA to Zone X In progress, funded through Chehalis River Basin Flood Authority and 2018 State * Supplemental Capital Budget ($4.6 million) ** $75 million needed -- 2019-2021 Biennium State Capital Budget request
Part of of t the TimberWorks s Master er P Plan
Fry Cr Creek eek Pro roject Coordina nation: n: Future P Pump St Station on
Tha hank Y You ou Kris Koski, PE City Engineer City of Aberdeen (360) 537-3218 kkoski@aberdeenwa.gov www.ezview.wa.gov/aberdeenfloodrelief
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