PUBLIC SEDIMENT / UNLOCK CREEK WWW.RESILIENTBAYAREA.ORG

◄ BAYLANDS = LIVING INFRA STR CTY\, E' j(II(

......

• 400

+-' -L C Based on preliminary 0 analysis by SFfl. A more , detailed analysis is beinq E TIDAL MARSH conducted as part of

-l/) the Healthy Watersheds l/) ro Resilient Aaylands E project (hwrb.sfei.org) +-' C QJ E "'O MUDFLAT QJ V1

SAC-SJ DELTA 0

1 Sediment supply was estimated by 'Sediment demand was estimated multiplying the current average using a mudflat soil bulk density of annual c;ediment load valuec; from 1.5 q c;ediment/rm c;oil (Brew and McKee et al. (in prep) by the number Williams :?010), a tidal marsh soil of years between 201 r and2100. bulk density ot 0.4 g sed1m ent / cm 3 c;oil (Callaway et al. :?010), and baywide mudflat and marsh area circa 2009 (BAARI vl). BAYLANDS TODAY BAYLANDS 2100 WITH 3' SLR LOW SEDIMENT SUPPLY BAYLANDS 2100 WITH 7' SLR LOW SEDIMENT SUPPLY

WE MUST LOOK UPSTREAM TRIBUTARIES FEED THE BAY

SONOMA CREEK

NAPA

PETALUMA CREEK

WALNUT CREEK

ALAMEDA CREEK

COYOTE CREEK

GUADALUPE CREEK SEDIMENTSHED

ALAMEDA CREEK ALAMEDA CREEK WATERSHED - 660 SQMI

OAKLAND ALAMEDA CREEK WATERSHED

SAN FRANCISCO

SAN JOSE THE CREEK BUILT AN ALLUVIAL FAN AND FED THE BAY

ALAMEDA CREEK

SOUTH BAY

NILES CONE ALLUVIAL FAN

HIGH SEDIMENT FEEDS MARSHES

TIDAL WETLANDS IT HAS BEEN LOCKED IN PLACE OVER TIME

LIVERMORE PLEASANTON

SUNOL

UNION CITY NILES

SAN MATEO BRIDGE EDEN LANDING

FREMONT NEWARK LOW SEDIMENT

CARGILL SALT PONDS

DUMBARTON BRIDGE SEDIMENT FLOWS ARE HIGHLY MODIFIED

SEDIMENT IS STUCK IN CHANNEL

IMPOUNDED BY DAMS UPSTREAM

REDUCED SUPPLY TO THE BAY AND VULNERABILITIES ARE EXACERBATED BY CLIMATE CHANGE

EROSION SUBSIDENCE

SEA LEVEL RISE

THE FLOOD CONTROL CHANNEL

SAN MATEO BRIDGE UNION CITY NILES

RUBBER DAMS

BART WEIR

EDEN LANDING PONDS HEAD OF TIDE FREMONT 880

NEWARK

TIDAL EXTENT FLUVIAL EXTENT

DUMBARTON BRIDGE