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Delta Conveyance Siting Drivers

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Delta Conveyance Siting Drivers 12/13/2019 Map 1 CR E3 Bell Ave River Rd Winding Way Legend 80 Fair Oaks Blvd CR 25 ¨¦§ San Juan Rd Auburn Blvd Legal Delta CR 27 El CentroEl Rd NorwoodAve Rio Linda Blvd CR 102 50 Garden Hwy El Camino Ave ¤£ 5 AveWalnut Eastern Ave Eastern Coloma Rd CR 98 ¨¦§ Northgate Blvd Northgate Sunrise Blvd CR 29 West Arden Way CR 101a CR 29 505 CR 29a White Rock Rd Sacramento Ave Watt CR 89 ¨¦§ Sacramento Ave Fulton American RiverFolsom Blvd N St HoweAve CR 95 ABH113 ¤£50 J St CR 105 H St American River Dr CR 31 F St Port of Rd RT Buckeye Rd CR 32b 5th St 21st St La Riviera Dr Douglas Rd L St L T St Russell Blvd Sacramento Y St CR 32 Chiles Rd Broadway Kiefer Blvd CR E6 Hutchinson Dr Stockton Blvd 14th Ave Putah Creek Rd S a c r a m e n t o ABH128 ABH99 Fruitridge Rd C o u n t y 24th St ABH84 47th Ave Elder Creek Rd ABH CR J8 16 SWatt Ave S River Rd S Land Park Dr Grant Line Rd Tremont Rd Florin Rd Florin Perkins Rd Sievers Rd Florin Rd GLIDE Pocket Rd Power Inn Rd DISTRICT Gerber Rd Mack Rd CR E2 Bradshaw Rd CR 104 Center Pky Freeport Excelsior Rd Pedrick Rd Bulkley Rd LISBON Calvine Rd Dixon Ave W A St DISTRICT Yolo County Sheldon Rd Elk Grove Florin Rd E Stockton Blvd N Meridian Rd 80 Midway Rd Clarksburg Laguna Blvd Bond Rd Wilton Rd ¨¦§ CR E9 Elk Grove Blvd Dillard Rd Tavernor Rd WatermanRd Lewis Rd NETHERLANDS Bilby Rd Walmort Rd Cosumnes River Hawkins Rd Liberty Island Rd Swan Rd MERRITT Hood Elmira Rd CR J8 Clay Station Rd LeisureTown Rd Binghamton Rd ISLAND Colony Rd Marshall Rd Bruceville Rd Ferry Rd RANDALL Alamo Dr CACHE ISLAND HAAS LITTLE Courtland MOORE HOLLAND Arno Rd Valensin Rd TRACT Alta Mesa Rd TRACT GLANVILLE Peabody Rd PETERS TRACT POCKET LIBERTY PIERSON ISLAND SUTTER ABH104 LIBERTY DISTRICT ISLAND Sacramento River FARMS CR Twin Cities Rd (CR E13) HASTINGS PROSPECT Air Base Pky TRACT ISLAND MCCORMACK- ABH113 WILLIAMSON TRACT Simmerhorn Rd ABH84 GRAND ISLAND Locke A St Solano County RYER ISLAND Walnut Grove Kost Rd EGBERT TRACT Ryde New Hope Rd Liberty Rd DEAD HORSE NEW HOPE Thornton ISLAND TRACT Elliott Rd ABH12 LITTLE EGBERT ABH TRACT Mokelumne River 99 N Dustin Rd Dustin N N Elliott Rd Elliott N CANAL NThornton Rd W Peltier Rd E Peltier Rd RANCH TYLER ISLAND TRACT GRIZZLY Shiloh Rd ISLAND Isleton N Lower Sacramento Rd Rio BRACK SCHAFTER- Vista TRACT S a n J o a q u i n Birds Landing Rd BRANNAN-ANDRUS PINTAIL W Turner Rd ISLAND STATEN Birds Landing ISLAND Lodi C o u n t y TERMINOUS Montezuma Hills Rd TRACT ABH12 E Kettleman Ln SIMMONS-WHEELER TWITCHELL BOULDIN S Ham Ln Ham S ISLAND ISLAND ISLAND Terminous DECKER SHIN KEE HONKER Collinsville ISLAND TRACT BAY CLUB WEBB TRACT VENICE RIO BLANCO BRADFORD Davis Rd TRACT 5 VAN SICKLE ISLAND ISLAND ¨¦§ N West Ln ISLAND SHERMAN EMPIRE KING ABH88 ISLAND TRACT WINTER ISLAND BISHOP CHIPPS LITTLE E Eight Mile Rd ISLAND MEDFORD TRACT ISLAND FRANK'S Thornton Rd BROWNS TRACT FRANKS TRACT ISLAND ATLAS Lower Sacramento Rd ISLAND JERSEY LITTLE TINSLEY MANDEVILLE TRACT Morada Ln Bay Point KIMBALL DONLON ISLAND ISLAND ISLAND Pittsburg BETHEL ISLAND ISLAND ISLAND WEST ISLAND LITTLE MANDEVILLE QUIMBY SHIMA BIG BREAK RINDGE TRACT E Hammer Ln Bethel Island ISLAND ISLAND N El Dorado St TRACT West Ln MCDONALD Calaveras River Neroly Rd DUTCH SLOUGH LSt WRIGHT- HOLLAND ISLAND Antioch HOTCHKISS RHODE Railroad Ave TRACT ELMWOOD TRACT ISLAND TRACT Oakley San Joaquin River SMITH TRACT Bailey Rd BACON MILDRED SARGENT- Lone Tree Way ISLAND ISLAND BARNHART ABH26 TRACT Middle River LOWER Kirker Pass Rd Knightsen SMITH TRACT SellersAve PALM ROBERTS Stockton Clayton Rd VEALE TRACT TRACT LOWER ISLAND Sunset Rd JONES ROUGH WEBER TRACT E Main St ABH4 BIXLER TRACT FAY ISLAND TRACT AND READY ABH4 ISLAND Port of Stockton BOGGS Brentwood ORWOOD TRACT E 8th St E Mariposa Rd Balfour Rd TRACT WOODWARD HONKER S Airport Way Deer Valley Rd ISLAND LAKE UPPER TRACT MIDDLE Discovery Bay JONES ROBERTS TRACT ISLAND Walnut Blvd Arch Rd BYRON DREXLER DREXLER TRACT Marsh Creek Rd TRACT VICTORIA POCKET N Gate Rd ISLAND French CAMINO Diablo Howard Rd Camp Byron KINGS Byron Hwy WIDDOWS C o n t r a ISLAND ISLAND UNION ISLAND French Camp Rd CONEY Tracy Blvd UPPER ISLAND ROBERTS C o s t a C o u n t y EUCALYPTUS ABH99 Old River ISLAND ISLAND Lathrop Rd Banks Jones Pumping STARK TRACT Pumping Lathrop E Louise Ave CAMINO Tassajara Plant FABIAN TRACT Plant Manteca Mountain STEWART TRACT House Crow Canyon Rd Highland Rd W Byron Rd ABH120 PICO-NAGLEE PESCADERO MOSSDALE DISTRICT ISLAND Alcosta Blvd Dougherty Rd W Grant Line Rd 205 Airport S Way Alameda County ¨¦§ WALTHALL Austin Rd S PARADISE Midway Rd UnionS Rd S MantecaS Rd JUNCTION 680 W 11th St Tracy W Ripon Rd ¨¦§ Tracy N Blvd ¨¦§5 Kasson Rd MCMULLIN RANCH N LivermoreAve Dublin Blvd ABH33 KASSON W Linne Rd DISTRICT ABH RIVER 84 CR 2063 JUNCTION 0 2.25 4.5 Study Area For Illustration Purposes Only ¯ Miles T:\WGI-38\GIS_33_00\GISRequest_11F\Deliverable_10F\MLT009_19\MLT009_19_11X17_StudyArea_NC.mxd [(kdolan) BDSN] 20191209 Data Source: DCA, DWR Feature Siting Drivers Page 1 Siting Driver: Soil Compressibility Relevant Facilities: Why is this important? Intakes The geology of the Delta has been shaped by the landward spread of tidal Tunnel Shaft – Launch environments resulting from sea level rise after the last glacial period. Tunnel Approximately 15,000 years ago, relative sea level was approximately 300 Tunnel Shaft – Retrieval feet lower, and the present-day Delta was an arid floodplain cross-cut by Intermediate Forebay the Sacramento and San Joaquin rivers. Following this period, sea level Southern Forebay rose rapidly, resulting in the landward migration of the ocean through the Pumping Plant Carquinez Strait and into the Central Valley, resulting in deposition of organic South Delta silt and clay across the floodplain. Approximately 5,000 years ago, sea level Interconnection stabilized and the Deltaic environment remained in approximately its present Conveyance position, characterized by vertical marsh growth and decomposition. Within this complex network of buried stream channels are layers of soft fine-grained soils, susceptible to compression under loading. Loose coarse- grained sediments present in the near-surface soils are likely susceptible to liquefaction during a seismic event. In these areas, additional soil strengthening may be required if a surface facility is constructed above. Soil strengthening is a process that would involve mixing cement with soft soils to increase their strength. How does soil compressibility affect facility siting and design? Siting facilities in areas of highly compressible soils could reduce the long- term structural integrity of facilities founded on or within the affected soils. This may also be true of the risk of differential settlement due to the highly variable nature of the Delta soils. Similarly, siting facilities in areas with highly liquefiable soils would increase the risk of damage during a seismic event. Reduction of these risks could be achieved through soil strengthening. Any potential tunneling is anticipated to be deeper and in more competent soils, and therefore impacts to the tunnels are considered minimal. Facility Effect of Driver on the Siting of Facilities Intakes Facility configuration; soil strengthening Tunnel Shaft-Launch Facility configuration; soil strengthening Tunnel No direct effect Tunnel Shaft- Retrieval Facility configuration; soil strengthening Intermediate Forebay Facility configuration; soil strengthening; embankment geometry Southern Forebay Facility configuration; soil strengthening; embankment geometry Pumping Plant Facility configuration; soil strengthening South Delta Interconnection Facility configuration; soil strengthening Conveyance to Existing PP Feature Siting Drivers Page 2 12/13/2019 Map 2 CR E3 Bell Ave River Rd Legend Winding Way ¨¦§80 Fair Oaks Blvd Soil Compressibility San Juan Rd Auburn Blvd El CentroEl Rd NorwoodAve Rio Linda Blvd 50 Garden Hwy El Camino Ave ¤£ Low Compressibility 5 AveWalnut ¨¦§ Ave Eastern Coloma Rd Northgate Blvd Northgate Sunrise Blvd Moderate Compressibility CR 29 West Arden Way White Rock Rd Sacramento Ave Watt High Compressibility Sacramento Ave Fulton American RiverFolsom Blvd N St HoweAve ¤£50 J St CR 105 H St American River Dr CR 32b 5th St Rd RT Port of T St La Riviera Dr Douglas Rd 21st St Y St CR 95 Sacramento Broadway Kiefer Blvd Stockton Blvd 14th Ave Putah Creek Rd ABH113 ABH128 505 Riverside Blvd ABH99 Fruitridge Rd ¨¦§ S River Rd 24th St ABH16 ABH84 47th Ave Elder Creek Rd CR J8 Grant Line Rd S Land Park Dr Florin Perkins Rd Tremont Rd Pocket Rd Florin Rd SWatt Ave Sievers Rd Gloria Dr Florin Rd Power Inn Rd Gerber Rd Mack Rd Center Pky Freeport Bradshaw Rd Excelsior Rd Pedrick Rd Bulkley Rd CR 104 Calvine Rd Dixon Ave W A St CR E2 Sheldon Rd E Stockton Blvd N Meridian Rd 80 Midway Rd Clarksburg Laguna Blvd Elk Grove Florin Rd Bond Rd ¨¦§ Wilton Rd Elk Grove Blvd Dillard Rd Yolo County Tavernor Rd WatermanRd Lewis Rd Bilby Rd Walmort Rd Cosumnes River Hawkins Rd Liberty Island Rd Elmira Rd Swan Rd Hood Clay Station Rd LeisureTown Rd Binghamton Rd Colony Rd Marshall Rd CR E9 Bruceville Rd Ferry Rd Alamo Dr CR J8 Courtland Arno Rd Valensin Rd Alta Mesa Rd Peabody Rd ABH104 Solano County S a c r a m e n t o CR Twin Cities Rd (CR E13) Air Base Pky C o u n t y ABH113 Simmerhorn Rd ABH84 Locke A St 5 Ryde Walnut Grove¨¦§ New Hope Rd Kost Rd Liberty Rd Thornton W Walnut Grove Rd Elliott Rd ABH12 ABH99 N Dustin Rd Dustin N Mokelumne River W Peltier Rd E Peltier Rd Rd Elliott N N Lower Sacramento Rd Shiloh Rd Rio Isleton Vista Birds Landing Rd W Turner
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