ORANGE COUNTY SEA LEVEL RISE VULNERABILITY Laguna Bluebelt

ORANGE COUNTY SEA LEVEL RISE VULNERABILITY Laguna Bluebelt | Mitch Ridder ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION SLIDE 1

Seal Beach Huntington Beach Newport Beach Laguna Beach ORANGE COUNTY COASTAL ZONE ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION Dana Point San Clemente SLIDE 2

CCC STATEWIDE SLR VULNERABILITY SYNTHESIS + Local jurisdiction vulnerability assessments https: //www. coastal. ca. gov/climate /slr/vulnerabilityadaptation/vulnerability/#/map Prepared with funding from USFWS under the Coastal Impact Assistance Program ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION SLIDE 3

ORANGE COUNTY Seal Beach Huntington Beach Newport Beach Laguna Beach Areas subject to flooding w 6 ft SLR (no storms) ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION Dana Point San Clemente SLIDE 4

COASTAL STORM MODELING SYSTEM COSMOS 3. 0 Seal Beach Huntington Beach Newport Beach Laguna Beach Dana Point ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION San Clemente SLIDE 5

SEAL BEACH Wastewater Infrastructure ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION July 2019 SLR Vulnerability Assessment SLIDE 6

SEAL BEACH Pac ific Co ast Hig h ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION wa y COSMOS 3. 0 – 6. 6 ft SLR with 100 yr storm SLIDE 7

HUNTINGTON BEACH 5. 5 SLR, Tidal Flooding at Huntington Harbour area, 2014 SLR VA – Final Report ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION SLIDE 8

HUNTINGTON BEACH Sunset Beach Dec 14, 2012, King Tides Project ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION Existing LOSSAN Railroad Corridor, North Reach, San Clemente, 2019 Draft SLR VA SLIDE 9

BOLSA CHICA STATE BEACH Low tide High tide Bolsa Chica State Beach Inlet, Huntington Beach 12/23/2018, CA King Tides 2019 ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION SLIDE 10

NEWPORT BEACH Bluff Erosion Co. SMo. S 3. 0, 6. 6 ft SLR, no storm ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION SLIDE 11

NEWPORT BEACH Low tide High tide Newport Island Bridge Dec 12, 2012 King Tide Danny Sullivan ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION SLIDE 12

LAGUNA BEACH Sea level rise will make today’s king tides become the future’s everyday tides Laguna Beach, Woods Cove, 1/21/19, King Tides Project ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION SLIDE 13

DANA POINT Doheny State Beach Capistrano State Beach ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION 1/21/2019, King Tides Project SLIDE 14

SAN CLEMENTE Shoreline + 4. 9 ft SLR Railroad today San Clemente 2019 Draft SLR VA ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION SLIDE 15

SAN CLEMENTE Existing LOSSAN Railroad Corridor, North Reach, San Clemente, 2019 Draft SLR VA ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION SLIDE 16

LCP GRANT PROGRAM Humboldt Co. Trinidad Arcata ~$6 million (+ SCC and OPC $) Fort Bragg Sonoma County 50 projects, 37 jurisdictions Marin Co. San Francisco Pacifica Half Moon Bay 32 vulnerability assessments Santa Cruz Marina Monterey Pacific Grove Round 6 now closed Morro Bay Pismo Beach Santa Barbara Co. Goleta City of SB Carpinteria Ventura Co. Oxnard Avalon Seal Beach Newport Beach Dana Point San Clemente ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION Santa Monica City of LA Manhattan Beach Hermosa Beach San Diego Co. City of SD. Oceanside Carlsbad Solana Beach Del Mar Imperial Beach SLIDE 17

ITEM F 6 – SLR ADAPTATION PLANNING PRESENTATION SLIDE 18