Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam...

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# * Red Holly Ct L e y la n d P ark D r E ch o V a l l ey D r R o ckvie w C t Ri m ro c k D r W oo ded Lak e D r Re ynol d s R d P he a s a n t R d Hi cks Rd SAN JOSE GUADALUPE DAM Guadalupe Reservoir Hi cks C r e ek G ol f C r e e k Guad al upe Cre e k 15 Minutes 6148000 .000000 6148000 .000000 6149000 .000000 6149000 .000000 6150000 .000000 6150000 .000000 6151000 .000000 6151000 .000000 6152000 .000000 6152000 .000000 6153000 .000000 6153000 .000000 6154000 .000000 6154000 .000000 6155000 .000000 6155000 .000000 6156000 .000000 6156000 .000000 6157000 .000000 6157000 .000000 6158000 .000000 6158000 .000000 6159000 .000000 6159000 .000000 6160000 .000000 6160000 .000000 6161000 .000000 6161000 .000000 6162000 .000000 6162000 .000000 6163000 .000000 6163000 .000000 1893000 .000000 1894000 .000000 1894000 .000000 1895000 .000000 1895000 .000000 1896000 .000000 1896000 .000000 1897000 .000000 1897000 .000000 1898000 .000000 1898000 .000000 1899000 .000000 1899000 .000000 1900000 .000000 1900000 .000000 1901000 .000000 £ ¤ 101 § ¨ ¦ 680 § ¨ ¦ 880 § ¨ ¦ 280 · | } þ 17 · | } þ 85 1 2 3 4 5 6 7 8 9 14 10 11 12 13 17 15 16 1 Legend Maximum Inundation Depth (feet) <1 2 to 5 5 to 10 10 to 20 >20 Flood Wave Arrival Time Cities # * Dams Santa Clara County Inundation Map for the Hypothetical Inflow Design Flood Failure of Guadalupe Dam Federal Dam ID: CA00294 State Dam ID: 72-009 Sheet 1 of 17 1 in = 1,000 ft Dam Owner: Santa Clara Valley Water District 5750 Almaden Exp San Jose CA 95118 Inundation Analysis and maps created by SCVWD August 2019 © 2019 Santa Clara Valley Water District Vertical Datum: NAVD88, U.S. Feet The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and may differ significantly from information shown on maps. This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards by a licensed civil engineer. ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood 0 800 1,600 400 Feet Approximate Scale 91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Transcript of Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam...

Page 1: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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SAN JOSE

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LegendMaximum Inundation Depth (feet)

<12 to 55 to 1010 to 20>20Flood Wave Arrival Time

Cities#* Dams

Santa Clara County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 1 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 2: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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15 Minutes

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Depth: 20 ftVelocity: 20 ft/s

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LegendMaximum Inundation Depth (feet)

<12 to 55 to 1010 to 20>20Flood Wave Arrival Time

Cities#* Damså Schools

¦̈ Fire Stations!. Road CalloutsSanta Clara

County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 2 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 3: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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Guadalupe Creek

45 Minutes

Location: Meridian AveArrival: 40 Minutes

Depth: 10 ftVelocity: 14 ft/s

Location: Almaden ExpwyArrival: 50 Minutes

Depth: 3 ftVelocity: 6 ft/s

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LegendMaximum Inundation Depth (feet)

<12 to 55 to 1010 to 20>20Flood Wave Arrival Time

Cities#* Damså Schools

¦̈ Fire Stations!. Road CalloutsSanta Clara

County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 3 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 4: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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Spinnaker Dr

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6163000.000000

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6164000.000000

6164000.000000

6165000.000000

6165000.000000

6166000.000000

6166000.000000

6167000.000000

6167000.000000

6168000.000000

6168000.000000

6169000.000000

6169000.000000

6170000.000000

6170000.000000

6171000.000000

6171000.000000

6172000.000000

6172000.000000

6173000.000000

6173000.000000

6174000.000000

6174000.000000

6175000.000000

6175000.000000

6176000.000000

6176000.000000

6177000.000000

6177000.000000

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LegendMaximum Inundation Depth (feet)

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Cities#* Damså Schools

¦̈ Fire Stations!. Road CalloutsSanta Clara

County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 4 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 5: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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Illiad Ct

Alby Ct

Stark Way

Marlene Ct

Ross Park Ct Adobe Ct

Jarvis Ct

Jarvis Pl

Latitude Dr

Woodson Ct

Shandwick Ct

North Pole Pl

MesitaWay

Prime Pl

Willow Creek Ct

Corte De Boleyn

Delante Ter

Matzley Ct

Gaylor Ln

Nesta DrComo LnElgin Ln

Cosmo P

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Yolanda Ct

Canberra Dr

Alta Mira PlVia El Capitan

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Royal Acres Ct

Leigh Ct

Gaucho Ct

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Mary Lee Way

Woodgate Ct

Robertsville Ct

Janet Ave

Hidalgo Ct

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Colmery Ln

Dinkel Ct

Via De Caballe

Corte De Flores

Annapolis Way

Lowry Dr

Wyndham Dr

Zisch Dr

Yucca Ave

Lollie Ct

Rivoir DrPuebla Ct

Cefalu Dr

Steval Pl

Sorci Dr

Willowview Dr

Glencrest Dr

Matzley Dr

Blossomview Dr

Willowpark Dr

Lansing Ave

Rio Verde Dr

Gates

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El Coral Way

Lama Way

Greenmoor Dr

Silverwood Dr

Rondeau Dr

Brighten Ave

KimberCt

Robb Dr

Gelia Way

Dentwood Dr

ProsperAve

Minna Way

Shaw Dr

Fairhaven Dr

Los Palos Way

San Clemente Ave

GeomaxCt

La Paz Ct

Plummer Ave

Sally

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Lonardo Ave

Durango Ct

Koch Ln Overbrook Dr

Bordwell Dr

El ton Ct

Pasatiempo Dr

Dumbarton Ave

Geneva St

Hampshire Pl

Evora Dr

Faraday Dr

Longdale DrCyrus Ave

Willow Creek Dr

Usona Dr

Ac ton Ct

Marlowe Dr

Lynhurst Ct

Valla Dr

Orange Grove Dr

Cole Dr Del Paso Ave

Electra Way

KimberlyCt

Ayrshire Dr

Marks Ave

Hugo Ln

Aragon Way

Harwood Rd

Urna Ave

Gayle Dr

Kirk CtInvicta Way

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Qu

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Town Club Dr

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Hastings Ave

Shona Ct

Pembridge Dr

St Croix Ct

Downswick Dr

Ranwick Ct

Capay Dr

Briarwood Dr

Normandale Dr

El Roble Ct

Corte De PonsCorte De Medea

Pine Forest Pl

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Mountcliffe Ct

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Crowder Ave

Coit Dr

Wai mea

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Grizilo Dr

Karie Ann Way

Wilcox Ave

Dent Ave

Calle De Arroyo

Yucatan Way

Andover LnGladstone Ave

Thompson Ave

Corning Dr

Cardin Ave

Lena Dr

La Rhee Dr

Brow

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Las Cruces Ct

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Ewer Dr

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Silvercrest Dr

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Lizzie Ln

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Clovercrest DrHogar Dr

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Estelle Ave

Speak Ln

Salisbury Dr

Arroba Way

Josephine Ave

Portobelo Dr

Pinehurst Dr

George Oaks Dr

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Ensalmo Ave

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Church DrQuartz Way

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Arbuckle Dr

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Jenkins Ave

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Sand

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Klipspringer Dr

Lahaina Way Joplin Dr

Assunta Way

Pandora Dr

Ledgewood Dr

Trego Dr

Potrero Dr

Lencar Way

Hendrix Way

Calle De Stuarda

Tape

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Custer Dr

Willowmont Ave

Altamont Ave

Wyrick Ave

Rama Dr

Scossa Ave

Payton Ave

Lindsay WayCarlsen Way

Calzar Dr

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Myrtle Ave

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Matson Dr

Trenton Dr

Almaden Rd

Justine Dr

Balsa Ave

Rus ti cDr

Weeth Dr

Russo Dr

Rochelle Dr

Homerite Dr

Desin Dr

Charmeran Ave

Barcelona Ave

Paladin Dr

Lynhurst Way

MontmorencyDr

Tampico Way

Kimberly Dr

Acton Dr

Rodney Dr

Andrews Ave

Kirk Rd

Branham Ln

Samson Way

Bronson Ave

Borchers Dr

Foxworthy Ave

Terri WayNelson Way

Oakwood Ave

Calle De Tosca

Lancaster Dr

Jacob Ave

Newberry Dr

Malvini Dr

MeridianAve

Bradford Way

Gavota Ave

Cresthaven LnSearcy Dr

Shawn Dr

Casa

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Sherbourne Dr

Cheshir e Dr

Blackstone Ave

Courtyard Dr

Ross Ave

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Berry Way

Woodford Dr

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Hallcrest Dr

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GuadalupePonds

Ross Creek

Guadalupe River

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Depth: Varies (2-15 ft)Velocity: 5 ft/s

Location: Branham LnArrival: 1 Hour

Depth: 5 ftVelocity: 5 ft/s

6146000.000000

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6147000.000000

6147000.000000

6148000.000000

6148000.000000

6149000.000000

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6150000.000000

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6151000.000000

6151000.000000

6152000.000000

6152000.000000

6153000.000000

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6154000.000000

6155000.000000

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6156000.000000

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6157000.000000

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6159000.000000

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6160000.000000

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LegendMaximum Inundation Depth (feet)

<12 to 55 to 1010 to 20Flood Wave Arrival Time

Citieså Schools

¦̈ Fire Stations!. Road Callouts

Santa Clara County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 5 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 6: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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6163000.000000

6163000.000000

6164000.000000

6164000.000000

6165000.000000

6165000.000000

6166000.000000

6166000.000000

6167000.000000

6167000.000000

6168000.000000

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6170000.000000

6170000.000000

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6173000.000000

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6176000.000000

6177000.000000

6177000.000000

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LegendMaximum Inundation Depth (feet)

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Citieså Schools

¦̈ Fire Stations!. Road Callouts

Santa Clara County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 6 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 7: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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Kiner Ave

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·|}þ87

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Location: CA-87Arrival: 1.75 HoursDepth: 8 ftVelocity: 4 ft/s

6155000.000000

6155000.000000

6156000.000000

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6161000.000000

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6165000.000000

6166000.000000

6166000.000000

6167000.000000

6167000.000000

6168000.000000

6168000.000000

6169000.000000

6169000.000000

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10 1112 13

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LegendMaximum Inundation Depth (feet)

<12 to 55 to 1010 to 20Flood Wave Arrival Time

Citieså Schools!. Road Callouts

Santa Clara County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 7 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 8: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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Alberta Ave

Hill Ave

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Vernon Ave

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Glenwood Ave

Pepitone Ave

Norval Way

Monticello Ave

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Capurs o Way

Clintonia Ave

Plum StMastic St

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Welch Ave

Carolyn Ave

Crescent Dr

Palm St

California Ave

Lick Ave

Perrymont Ave

Willow St

Fisk Ave

Hazelwood Ave

Marshall Ave

Arbor Dr

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Brooks Ave

Michigan Ave

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Telfer Ave

Lincoln Ave

Britton Ave

Broadway Ave

Healey Ave

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Ramona Ave

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Fairview Ave

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Johnston Ave

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Coastland Ave

Ellen Ave

Alma Ave

Jonathan Ave

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Pine Ave

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Mackey AveCreek Dr

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Wool Creek Dr

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San Jose Ave

Barnard Ave

Hervey Ln

Old Tully Rd

Stone Ave

Atlanta Ave

Coe Ave

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Phelan Ave

Parkside Ave

Stauffer Blvd

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Depth: 3 ftVelocity: 4 ft/s

Location: Monterey RdArrival: 2.5 HoursDepth: 3 ftVelocity: 4 ft/s

6154000.000000

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LegendMaximum Inundation Depth (feet)

<12 to 55 to 1010 to 20Flood Wave Arrival Time

Citieså Schools

¦̈ Fire Stations!. Road Callouts

Santa Clara County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 8 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 9: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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Carrie St

Helen St

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State StEarle Ave

Douglas St

Hoover Ave

Lakehouse Ave

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21s t St

Sequoia Ave

Hulet St

Grant St

Brown St

Otterson St

HarrisonTer

Fountain Aly

San Antonio St

Bestor St

Swenson Dr

Post St

San Salvador St

Josefa St

Lightston Aly

Prospect St

Margaret Way

Dorrie Ave

Harmon Ct

AutumnCt

Margaret St

HannahSt

Willow St

Oak St

Edwards Ave

Goodyear St

Connelly Dr

Van Every Dr

Victories

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Mastic St

Terraine St

Woodvale Ct

20th StDevine St

Almaden Ave

Almaden Blvd

Duane St

Humboldt St

Mcevoy St

Notre Dame Ave

Santa Clara St

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Garland Ave

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Sutter St

Royal Ave

Gifford Ave

Sherman St

E Virginia 1st AlleyE Virginia 2nd Alley

Bassett St

Cinnabar St

Pierce Ave

14th St

Old Julian St

12th St13th St

1st St

11th St

19th St

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Margaret 1st AlleyMargaret 2nd Alley

Orvis Ave

Cahill St

Cahill Park Dr

18th St

Union St

Woz Way

SierraAve

Hanchett Ave

Martin Ave

Luther Ave

Jerome St

Rainier St

Graham Ave

Rhodes Ct

Columbia Ave

Keeble Ave

Martha St

Patterson St

Market St

Keyes St

Home StSaddle Rack St Virginia St

Laure

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Pacific Ave

William St

Illinois

Ave

Delmas Ave

17th St

6th St

8th St

Auzerais Ave

San Pedro St

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Savaker Ave

Bird A

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Hollywood Ave

Stockton Ave

Yosemite Ave

Villa Ave

4th St

Montgomery St

St John St

Gran

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B rookwood AveHarding AveSchiele Ave

Balbach S

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Wood

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Race St

Harliss Ave

Julian St

Remillard Ct

Melbourne Blvd

San Carlos St

Pershing

Ave

Autumn StSunol St

Bush St

Cleaves Ave

Wilson Ave

Morrison Ave

Atlas Ave

Palm St

Vine St

Locust St

Park Ave

Reed St

Lincoln Ave

9th St

3rd St2nd St 10th St

7th St

5th St

Alma Ave

16th St

15th StJeanne Ave

Fuller Ave

Dupont St

San Fernando St

Lenzen

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22nd

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·|}þ87

SAN JOSE

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Location: I-280 / CA-87 InterchangeArrival: 5 HoursDepth: Varies (5 - 25 ft)Velocity: 4 ft/s

Location: W San Carlos StArrival: 2.25 HoursDepth: 4 ftVelocity: 3 ft/s

6151000.000000

6151000.000000

6152000.000000

6152000.000000

6153000.000000

6153000.000000

6154000.000000

6154000.000000

6155000.000000

6155000.000000

6156000.000000

6156000.000000

6157000.000000

6157000.000000

6158000.000000

6158000.000000

6159000.000000

6159000.000000

6160000.000000

6160000.000000

6161000.000000

6161000.000000

6162000.000000

6162000.000000

6163000.000000

6163000.000000

6164000.000000

6164000.000000

6165000.000000

6165000.000000

6166000.000000

6166000.000000

1942

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Citieså Schools

¦̈ Fire Stations!. Road Callouts

Santa Clara County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 9 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 10: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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Santa Teresa St

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Hensley St

Mathew St

Highland Ave

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Burton Ave

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Sherman St

Washington St

Frankfurt Ave

Main St

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Sherwood Ave

Acacia St

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Waco St

Parker Ct

Park Ave

New Maple St

George St

Locust St

Lewis St

Linden Dr

Reeve St

Kinney Dr

8th St

University Ave

De Alt

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Ave

Chapman St

Porto

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Railroad Ave

Ryland Park Way

Stockton Ave

Laurel St

Morse St

Elm StMyrtle St

Emory St

Poplar St

Seymour St

Civic Center Dr

Market StSanta Clara St

Wistaria Way

Walnut St

Fremont StHarrison St

Franklin StBenton St

Vermont St

Delno St

Ayer AveRankin Ave

Alameda Way

Miller St

Rosemary St

Jackson St

Ruff Dr

Cook St

Alviso St

Idaho

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DavisSt

Hamline St

Arbol W

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San Pedro Cir

Asbury St

Dahlia Loop

College A ve

Monroe St

Lafayette Way

Empire Aly

Ch estnut St

Palm Dr

10th StArnold AveKeoncrest Ave

Santa Paula Ave

Commercial St

Mission St

Forrestal Ave

Mckendr

ie St

Bellomy St

Younger Ave

Jefferson St

Manchester Dr

Hobson St

Hawthorne Way

Fox AveClayton Ave

Parker St San Juan Ave

Madison St

Reed St

San Pedro St

Ryland StCypress Ave

Hilmar StCamino Dr

Lafayette St

Circle Dr

CampbellAve

6th St2nd St

7th St

3rd St

Brokaw

Rd

The Alameda

Spring St

Park Ct

1st St

4th St

Grant St

5th St

Martin Ave

Hedding St

Taylor St

Aviation Ave

Newhall Dr

ColemanAve

DeLa

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Blvd

The Alameda

Homestead Rd

El Camino Real

·|}þ87

SANTA CLARA

SAN JOSE

§̈¦880

Guadalupe River

6 Hours

6 Hours

6 Hours

5 Hours

4 Hours

Location: Coleman AveArrival: 4 Hours

Depth: 3 ftVelocity: 2 ft/s

Location: I-880Arrival: 5 Hours

Depth: 2 ftVelocity: 2 ft/s

6141000.000000

6141000.000000

6142000.000000

6142000.000000

6143000.000000

6143000.000000

6144000.000000

6144000.000000

6145000.000000

6145000.000000

6146000.000000

6146000.000000

6147000.000000

6147000.000000

6148000.000000

6148000.000000

6149000.000000

6149000.000000

6150000.000000

6150000.000000

6151000.000000

6151000.000000

6152000.000000

6152000.000000

6153000.000000

6153000.000000

6154000.000000

6154000.000000

6155000.000000

6155000.000000

6156000.000000

6156000.000000

1950

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·|}þ17

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78

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1112 13

1715 16

10

LegendMaximum Inundation Depth (feet)

<12 to 55 to 1010 to 20Flood Wave Arrival Time

Citieså Schools

¦̈ Fire Stations!. Road Callouts

Santa Clara County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 10 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 11: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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Sakura Dr

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Rio Bar r anca Ct

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Saron Ave

Monferino Dr

Gaman Ln

Carnegie Sq

Peruka Pl

Wilshire Blvd

Manzana Pl

Beverly Blvd

Mayfair Pl

Lido Way

Bonita Aly

Chaucer Dr

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Brookwood Ave

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EscazuCt

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Berryess

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Eastgate Ave

Jose Figueres Ave

Amstel Ct

Calhoun St

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Marigold Ct

Elizabeth St

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Sedona Pl

Heller Pl

Vestal St

Hensley St

Banff St

Bassett St Lu k e Ct

PermataCt

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Sunset View Pl

Cinderella Ln

Marianelli Ct

El Rancho Verde Dr

Washington St

St John St

Goularte Way

Jackson St

Luna Park Dr

Mccre

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Platinum Ct

De Mattei Ct

Lynette Way

Spiro Dr

Moss Dr

Santa Ana Ave

Madera Ave

Firest

one Loop

Jasper St

Tennyson Ln

Horning St

Thackeray LnTomlinson Ln

Madden Ave

Schulte Dr

Scharff Ave

Hedding St

Parmer Ave

Mclaughlin Ave

Sawgrass Dr

Prince George Dr

Stowe Ave

Empire St

Turquesa Ct

Lenfest Rd

1st St

Coyote Cre ekPl

Packing Pl

Ribbs Ln

Esme ralda Ct

Wooster Ave

Berrywood Dr

Kelly Ct

Poas C ir

Clifford Way

Terrace Dr

Bonita Ave

Sunset Ct

Mission St

31st St

Trailer Park Access RdMelrose Ave

Duffy Way

Min

as De Oro

St James St

Santa Clara St

Las Plumas Ave

Jackson Ave

D estin oCir

Five Wounds Ln

Shortridge Ave

Alexian Dr

Mccreery Ave

27th St26th St25th St

Cannery Pl

Arroyo De Platina

TurleyDr

San Fernando St

Foss Ave

Pr eservat i on Dr

Cooley Dr

Bayshore Rd

William St

Whitton Ave

Ann Darling Dr

Hermoc illa Way

PalacioRoy a le Cir

Mckee Rd

Mcdonald Ave

A lt hoff Way

Royce Dr

San Antonio St

Bulldog Blvd

Lausett Ave

Julian St

King Rd

24th St

Alum Rock Ave

Arroyo De Oro

Coyot eCreek C ir

2nd St

Luz Ave

Balboa Ave

Virginia PlLos Suenos Ave

28th St

30th St

Magellan Ave

SanAntonio Ct

Marburg Way

Eastwood Ct

33rd St

4th St

5th St

10th St

21st St

19th St

14th St

12th St

9th St

22nd St

16th St

17th St

8th St

Eggo Way

18th St

13th St

15th St

11th St7th St6th St

20th St

MelodyLn

West CtEast Ct

PerroneCir

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Taylor

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CheckersDr

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Margaret St

Sunny Ct

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Virginia Ave

Lavonne Ave

Oakland Ave

ArroyoWay

Sanders Ave

Basch Ave

Sinclair Dr

23rd St

3rd St Peach Ct

William Ct

Silcreek Dr

34th St

34thStT ra iler ParkAccess Rd

Mckee Rd

Oakland Rd

Story Rd

San JoseHospital

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6157000.000000

6157000.000000

6158000.000000

6158000.000000

6159000.000000

6159000.000000

6160000.000000

6160000.000000

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6164000.000000

6164000.000000

6165000.000000

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6166000.000000

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6167000.000000

6168000.000000

6168000.000000

6169000.000000

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6170000.000000

6170000.000000

6171000.000000

6171000.000000

1950

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LegendMaximum Inundation Depth (feet)

<12 to 55 to 10Flood Wave Arrival Time

Citieså Schools"u Hospitals¦̈ Fire Stations

Santa Clara County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 11 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 12: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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4th St

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LosPadr

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Kenn

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Sonora Ave

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KarinaCt

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Gianni St

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ah Dr

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Devcon Dr

Keller St

Lawson Ln

Atmel Way

Seaboard Av e

Thomas Rd

Keoncrest Ave

Main St

Compon

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Technology Dr

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GardenCourt Dr

George St

Metro Dr

R aymondSt

Skyport Dr

Space Park Dr

Ewert Rd

GatewayPl

Mathew St

JaySt

CharcotAve

Alfred St

Robert Ave

Airport Blvd

Lafayette St

Channing Ave

1st St

Matrix Blvd

Duane Ave

Airport P

kwy

Zanker Rd

Orchard Pkwy

O'nel Dr

Richard Ave

Comstock St

Memorex Dr

Bering Dr

Martin Ave

Walsh Ave

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·|}þ87

SANTA CLARA SAN JOSE

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10 Hours

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Location: US-101Arrival: 8 Hours

Depth: 2 ftVelocity: 2 ft/s

Location: US-101Arrival: 7.5 HoursDepth: 2 ftVelocity: 1 ft/s

6137000.000000

6137000.000000

6138000.000000

6138000.000000

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6140000.000000

6140000.000000

6141000.000000

6141000.000000

6142000.000000

6142000.000000

6143000.000000

6143000.000000

6144000.000000

6144000.000000

6145000.000000

6145000.000000

6146000.000000

6146000.000000

6147000.000000

6147000.000000

6148000.000000

6148000.000000

6149000.000000

6149000.000000

6150000.000000

6150000.000000

6151000.000000

6151000.000000

1958

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12

LegendMaximum Inundation Depth (feet)

<12 to 55 to 1010 to 20Flood Wave Arrival Time

Citieså Schools

¦̈ Fire Stations!. Road Callouts

Santa Clara County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 12 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 13: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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Cape Flattery Pl

Obsidian Dr

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Cape Breton Pl

Cape Morris Pl

Baysland Ct

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Murasky Pl

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6152000.000000

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6153000.000000

6153000.000000

6154000.000000

6154000.000000

6155000.000000

6155000.000000

6156000.000000

6156000.000000

6157000.000000

6157000.000000

6158000.000000

6158000.000000

6159000.000000

6159000.000000

6160000.000000

6160000.000000

6161000.000000

6161000.000000

6162000.000000

6162000.000000

6163000.000000

6163000.000000

6164000.000000

6164000.000000

6165000.000000

6165000.000000

6166000.000000

6166000.000000

6167000.000000

6167000.000000

1958

000.0

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0

1958

000.0

0000

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1959

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Cities#* Damså Schools

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Santa Clara County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 13 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 14: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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Citieså Schools"u Hospitals¦̈ Fire Stations!. Road CalloutsSanta Clara

County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 14 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 15: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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6124000.000000

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6126000.000000

6127000.000000

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6129000.000000

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6131000.000000

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171615

LegendMaximum Inundation Depth (feet)

<12 to 55 to 1010 to 20Flood Wave Arrival Time

Citieså Schools

¦̈ Fire Stations!. Road Callouts

Santa Clara County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 15 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 16: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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Los Encinos St

Brisas Dr

Cana

lSt

Cottonwood Dr

Cap ella Way

Hermitage St

Fernleaf DrMihalakis St

Spindr ift St

Evening

Star Ct

Cortez St

LosEn

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driftWay

CabrilloRd

De Soto Rd

Parc Place Dr

Barber Ct

Nestwood Wa y

Curtis Ave

Cypress Dr

EstanciaDr

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Hermitage Dr

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Stellar Way

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Alder Dr

Great Mal l Dr

Mc Carthy Blvd

Sumac Dr

Rose Orchard Way

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Tasman DrCenter Rd

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Technology Dr

Thompson Ct

Thomas Foon Chew Way Alviso-milpitas Rd

Baypoi

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AgnewsStateHospital

ElmwoodRehabilitationCenter

MILPITAS

SANTA CLARA

SAN JOSE

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SanFrancisco

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Lower Penitencia Creek

Coyote Creek

Coyote Creek Secondary Channe

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16 Hours

Location: CA-237Arrival: 15 HoursDepth: 4 ftVelocity: 2 ft/s

6140000.000000

6140000.000000

6141000.000000

6141000.000000

6142000.000000

6142000.000000

6143000.000000

6143000.000000

6144000.000000

6144000.000000

6145000.000000

6145000.000000

6146000.000000

6146000.000000

6147000.000000

6147000.000000

6148000.000000

6148000.000000

6149000.000000

6149000.000000

6150000.000000

6150000.000000

6151000.000000

6151000.000000

6152000.000000

6152000.000000

6153000.000000

6153000.000000

6154000.000000

6154000.000000

6155000.000000

6155000.000000

1974

000.0

0000

0

1974

000.0

0000

0

1975

000.0

0000

0

1975

000.0

0000

0

1976

000.0

0000

0

1976

000.0

0000

0

1977

000.0

0000

0

1977

000.0

0000

0

1978

000.0

0000

0

1978

000.0

0000

0

1979

000.0

0000

0

1979

000.0

0000

0

1980

000.0

0000

0

1980

000.0

0000

0

1981

000.0

0000

0

1981

000.0

0000

0

£¤101

§̈¦680

§̈¦880

§̈¦280

·|}þ17

·|}þ85

12

3 45 6

78

9

14

10 1112 13

1715 16

LegendMaximum Inundation Depth (feet)

<12 to 55 to 10Flood Wave Arrival Time

Citieså Schools"u Hospitals¦̈ Fire Stations!. Road CalloutsSanta Clara

County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 16 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019

Page 17: Santa Clara Valley Water District€¦ · ® Inflow Design Flood (IDF) failure assumes a dam failure at the highest calculated reservoir elevation due to a probable maximum flood

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Catherine St

Mill St

Pacific Ave

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State St

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Michigan Ave

Mccarthy Ln

Zanker Rd

Grand B

lvd

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Los Esteros Rd

SAN JOSE

A18

A12

A13

A15

A8

A14

A11

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SanFrancisco

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Guadalupe River

6129000.000000

6129000.000000

6130000.000000

6130000.000000

6131000.000000

6131000.000000

6132000.000000

6132000.000000

6133000.000000

6133000.000000

6134000.000000

6134000.000000

6135000.000000

6135000.000000

6136000.000000

6136000.000000

6137000.000000

6137000.000000

6138000.000000

6138000.000000

6139000.000000

6139000.000000

6140000.000000

6140000.000000

6141000.000000

6141000.000000

6142000.000000

6142000.000000

6143000.000000

6143000.000000

6144000.000000

6144000.000000

1982

000.0

0000

0

1982

000.0

0000

0

1983

000.0

0000

0

1983

000.0

0000

0

1984

000.0

0000

0

1984

000.0

0000

0

1985

000.0

0000

0

1985

000.0

0000

0

1986

000.0

0000

0

1986

000.0

0000

0

1987

000.0

0000

0

1987

000.0

0000

0

1988

000.0

0000

0

1988

000.0

0000

0

1989

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0

1989

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£¤101

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·|}þ17

·|}þ85

12

3 45 6

78

9

14

10 1112 13

15 1617

LegendMaximum Inundation Depth (feet)

<12 to 5

Cities¦̈ Fire Stations

Santa Clara County

Inundation Map for theHypothetical Inflow Design Flood Failure of

Guadalupe DamFederal Dam ID: CA00294 State Dam ID: 72-009

Sheet 17 of 171 in = 1,000 ft

Dam Owner:Santa Clara Valley Water District

5750 Almaden ExpSan Jose CA 95118

Inundation Analysis and mapscreated by SCVWD

August 2019© 2019 Santa Clara Valley Water District

Vertical Datum: NAVD88, U.S. Feet

The methods used to develop inundation zones and flood wave arrival times are approximate and should only be used as guidance

for establishing evacuation zones. Actual areas inundated will depend on actual failure and pre-failure hydrologic conditions and

may differ significantly from information shown on maps.This map meets all applicable state and federal standards and has been prepared inconsideration of all potential downstreamhazards

by a licensed civil engineer.

®Inflow Design Flood (IDF) failure assumes

a dam failure at the highest calculated reservoirelevation due to a probable maximum flood

0 800 1,600400Feet

Approximate Scale

91081007\2018_040\Guadalupe_inundation_IDF_1000.mxd 17x11 8/8/2019