anderson dam inundation maps 2016 - santa clara valley water … · 2018-02-07 · leroy anderson...

ALAMEDA

STANISLAUS

MONTEREY

SANTACLARA

SANTACRUZ

SANBENITO

SANMATEO

SANJOAQUIN

Esri, HERE, DeLorme, MapmyIndia, © OpenStreetMap contributors

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ANDERSON DAMFLOOD INUNDATION MAPS ¹

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LEROY ANDERSON DAM

Elkhorn Slough

Pacific Ocean

NOTES: 1.�USERS OF THESE MAPS ARE ADVISED THAT BECAUSEOF THE METHOD, PROCEDURES, AND ASSUMPTIONS USEDTO DEVELOP THE FLOOD AREAS, THE LIMITS OF FLOODINGSHOWN AND FLOOD WAVE TRAVEL TIMES AREAPPROXIMATE AND SHOULD BE USED ONLY AS AGUIDELINE FOR ESTABLISHING EVACUATION ZONES.ACTUAL AREAS INUNDATED WILL DEPEND ON ACTUALFAILURE CONDITIONS AND MAY DIFFER FROM AREASSHOWN ON THE MAPS.

2.�TWO FLOODING SCENARIOS ARE PRESENTED ON THE MAPS; THE “FAIR WEATHER” SCENARIO AND THE “INFLOWDESIGN FLOOD” SCENARIO. THESE SCENARIOS AREDEFINED AS FOLLOWS:

(A)�THE FAIR WEATHER SCENARIO ASSUMES THAT THE DAM FAILURE OCCURS DURING NON-STORM CONDITIONS WITH A NORMAL FULL POOL ELEVATION IN THE RESERVOIR AND NORMAL FLOW CONDITIONS DOWNSTREAM OF THE DAM.

(B)�THE INFLOW DESIGN FLOOD SCENARIO ASSUMES THAT THE DAM FAILURE OCCURS DURING A LARGE STORM EVENT WITH A HIGH POOL ELEVATION IN THE RESERVOIR AND HIGH FLOW CONDITIONS DOWNSTREAM OF THE DAM. FOR THIS PARTICULAR DAM, THE INFLOW DESIGN FLOOD IS EQUAL TO THE PROBABLE MAXIMUM FLOOD EVENT. ANTECEDENT FLOW CONDITIONS ASSUME NEAR FULL CREEKS BY USING AS-IS LIDAR TERRAIN DATA (NO GROUND SURVEY).

Monterey Bay

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XS STA(Miles D/Sof Dam)

MaximumFlow (cfs)

Flood WaveArrival Time

PeakElevationTime

Deflood TimeMaximumDepth (ft)

MaximumElevation

(ft)

MaximumVelocity(ft/s)

1 1,360,000 0HR 30MIN 0HR 50MIN 5HR 10MIN 18.88 366.5 11.32 1,333,700 0HR 45MIN 0HR 50MIN 6HR 30MIN 20.93 356.1 11.73 1,311,100 0HR 45MIN 0HR 55MIN 10HR 20MIN 25.82 337.5 11.94 1,296,700 0HR 50MIN 0HR 55MIN 10HR 30MIN 23.40 318.6 9.95 1,272,400 0HR 55MIN 1HR 5MIN 10HR 25MIN 26.39 297.1 9.86 1,122,900 1HR 30MIN 1HR 45MIN 13HR 5MIN 36.75 290.5 6.27 763,900 1HR 40MIN 1HR 50MIN 12HR 55MIN 43.81 288.4 4.88 670,600 1HR 40MIN 1HR 55MIN 14HR 5MIN 43.71 284.1 4.29 664,600 1HR 55MIN 2HR 10MIN 13HR 5MIN 17.27 232.1 6.710 652,000 2HR 0MIN 2HR 20MIN 12HR 0MIN 19.87 222.2 4.811 639,000 2HR 10MIN 2HR 30MIN 12HR 55MIN 19.49 209.9 3.912 619,200 2HR 50MIN 3HR 20MIN 15HR 35MIN 20.97 189.2 4.213 531,700 3HR 10MIN 3HR 45MIN 17HR 5MIN 33.39 186.5 2.414 458,000 3HR 30MIN 3HR 20MIN 1HR 0MIN 11.43 164.0 3.015 419,900 3HR 50MIN 5HR 25MIN 5HR 50MIN 15.54 154.4 2.716 409,000 4HR 20MIN 5HR 15MIN 9HR 15MIN 21.41 147.3 3.817 401,400 4HR 45MIN 5HR 15MIN 13HR 0MIN 29.80 137.92 3.318 391,200 5HR 10MIN 6HR 0MIN 20HR 45MIN 26.03 117.94 2.619 369,600 5HR 35MIN 6HR 10MIN 18HR 15MIN 29.60 105.51 2.320 343,300 5HR 50MIN 6HR 30MIN 19HR 15MIN 28.04 90.95 2.421 320,900 6HR 40MIN 7HR 20MIN 21HR 40MIN 27.65 74.84 2.222 312,300 7HR 0MIN 7HR 50MIN 19HR 10MIN 24.52 62.27 2.423 304,300 7HR 30MIN 8HR 15MIN 19HR 45MIN 13.65 49.96 2.224 293,400 8HR 15MIN 9HR 5MIN 22HR 5MIN 21.87 38.09 1.825 281,500 8HR 50MIN 9HR 45MIN 20HR 10MIN 13.75 29.31 2.026 267,600 9HR 25MIN 10HR 20MIN 20HR 45MIN 21.53 23.94 1.627 253,800 9HR 45MIN 10HR 55MIN 20HR 35MIN 28.15 16.02 1.828 233,800 11HR 55MIN 13HR 10MIN 18HR 50MIN 9.51 9.48 2.529 214,900 12HR 0MIN 13HR 25MIN 18HR 25MIN 11.42 9.29 2.330 159,000 12HR 45MIN 14HR 40MIN 10HR 20MIN 8.28 7.59 2.431 135,500 13HR 15MIN 14HR 55MIN 12HR 5MIN 7.56 7.15 2.132 119,500 13HR 20MIN 14HR 55MIN 11HR 30MIN 5.88 7.10 4.633 26,000 14HR 30MIN 15HR 50MIN 2HR 30MIN 2.74 5.58 3.234 8,400 16HR 40MIN 21HR 15MIN 5HR 40MIN 2.08 4.92 1.535 4,100 26HR 35MIN 45HR 20MIN N/A 2.35 2.54 1.3

INFLOW DESIGN FLOOD (NORTH)XS STA

(Miles D/Sof Dam)

MaximumFlow (cfs)


PeakElevationTime


MaximumElevation

(ft)


1 974,500 0HR 45MIN 1HR 20MIN 4HR 55MIN 14.92 362.5 9.82 962,300 0HR 40MIN 1HR 15MIN 5HR 40MIN 17.59 352.8 9.53 951,200 0HR 45MIN 1HR 20MIN 9HR 0MIN 22.27 334.0 10.54 943,400 0HR 55MIN 1HR 25MIN 9HR 30MIN 20.80 316.0 8.75 930,300 1HR 0MIN 1HR 30MIN 12HR 55MIN 23.12 293.8 8.86 821,800 1HR 10MIN 1HR 50MIN 17HR 0MIN 29.45 283.2 6.67 608,600 1HR 20MIN 2HR 20MIN 45HR 50MIN 36.12 280.7 6.38 429,800 1HR 25MIN 2HR 25MIN 16HR 30MIN 36.56 277.0 6.19 420,600 2HR 5MIN 2HR 50MIN 13HR 30MIN 13.03 227.8 5.810 406,700 2HR 15MIN 3HR 0MIN 13HR 55MIN 15.40 217.7 4.811 393,400 2HR 30MIN 3HR 10MIN 17HR 15MIN 15.75 206.2 3.412 367,400 2HR 50MIN 4HR 25MIN 14HR 15MIN 15.63 183.9 3.613 271,700 3HR 5MIN 4HR 50MIN 40HR 40MIN 28.23 181.4 2.414 232,400 3HR 10MIN 4HR 30MIN 2HR 35MIN 11.14 163.7 2.715 194,200 3HR 25MIN 5HR 20MIN 3HR 5MIN 14.72 153.5 2.316 186,600 3HR 45MIN 7HR 30MIN 16HR 55MIN 10.84 136.8 2.817 181,500 4HR 5MIN 7HR 35MIN 33HR 10MIN 23.06 131.18 2.518 177,000 4HR 30MIN 8HR 0MIN 31HR 15MIN 22.30 114.21 2.119 162,800 6HR 45MIN 8HR 30MIN 49HR 50MIN 24.73 100.64 1.920 149,000 7HR 15MIN 8HR 55MIN 43HR 50MIN 24.13 87.04 1.921 137,200 7HR 35MIN 10HR 0MIN 42HR 5MIN 22.52 69.71 1.722 132,000 7HR 55MIN 10HR 40MIN 42HR 10MIN 19.80 57.55 1.723 128,200 8HR 45MIN 11HR 20MIN 20HR 55MIN 9.60 45.91 1.624 122,900 8HR 50MIN 12HR 25MIN 44HR 5MIN 16.75 32.97 1.425 117,400 10HR 25MIN 13HR 25MIN 29HR 25MIN 9.53 25.09 1.526 110,300 11HR 15MIN 14HR 15MIN 30HR 15MIN 17.32 19.73 1.327 103,700 13HR 5MIN 15HR 5MIN 17HR 15MIN 25.22 13.09 1.728 88,100 14HR 15MIN 21HR 10MIN 7HR 40MIN 6.84 6.81 2.329 70,800 16HR 0MIN 21HR 15MIN 6HR 10MIN 8.86 6.73 2.330 55,500 17HR 55MIN 23HR 30MIN 6HR 20MIN 6.19 5.50 2.731 51,900 17HR 30MIN 24HR 0MIN 7HR 10MIN 5.62 5.21 1.732 47,800 18HR 30MIN 24HR 0MIN 6HR 35MIN 3.97 5.19 3.433 1,400 28HR 55MIN 31HR 45MIN 3HR 15MIN 0.81 3.65 1.234 0 N/A N/A N/A 0.39 3.23 0.135 0 N/A N/A N/A 0.00 0.19 0.0

FAIRWEATHER (NORTH)


MaximumFlow (cfs)


PeakElevationTime


MaximumElevation

(ft)


0.5 477,600 0HR 20MIN 1HR 0MIN 12HR 20MIN 81.37 749.9 17.41.0 477,500 0HR 20MIN 1HR 0MIN 12HR 30MIN 97.11 744.3 12.01.5 477,000 0HR 20MIN 1HR 0MIN 12HR 30MIN 93.91 726.3 12.52.0 475,800 0HR 30MIN 1HR 0MIN 12HR 30MIN 60.56 688.4 13.52.3 474,800 0HR 30MIN 1HR 0MIN 12HR 20MIN 56.57 687.2 15.0

INFLOW DESIGN FLOOD (COYOTE)XS STA

(Miles D/Sof Dam)

MaximumFlow (cfs)


PeakElevationTime


MaximumElevation

(ft)


0.5 197,600 0HR 20MIN 1HR 20MIN 3HR 50MIN 51.44 719.9 13.41.0 196,800 0HR 20MIN 1HR 20MIN 4HR 20MIN 63.45 710.6 11.81.5 195,600 0HR 20MIN 1HR 20MIN 4HR 20MIN 59.41 691.8 10.62.0 194,900 0HR 30MIN 1HR 20MIN 5HR 30MIN 40.15 668.0 10.42.3 194,200 0HR 30MIN 1HR 20MIN 5HR 30MIN 34.95 665.6 12.1

FAIRWEATHER (COYOTE)

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PeakElevationTime


MaximumElevation

(ft)


1 199,300 0HR 50MIN 1HR 20MIN 10HR 55MIN 17.70 363.64 5.62 134,100 0HR 55MIN 1HR 30MIN 8HR 35MIN 14.97 361.88 2.93 101,900 1HR 20MIN 1HR 45MIN 12HR 55MIN 14.94 344.62 2.94 77,500 1HR 25MIN 2HR 20MIN 7HR 5MIN 7.79 321.48 2.65 67,400 1HR 55MIN 2HR 40MIN 9HR 50MIN 7.67 306.51 3.46 62,000 2HR 30MIN 3HR 0MIN 9HR 0MIN 9.21 286.62 3.27 58,500 2HR 40MIN 3HR 15MIN 15HR 25MIN 13.05 268.43 3.18 52,300 3HR 10MIN 3HR 40MIN 9HR 20MIN 12.10 250.04 2.69 45,100 3HR 30MIN 4HR 0MIN 6HR 5MIN 10.57 231.45 2.310 36,300 3HR 55MIN 4HR 45MIN 18HR 10MIN 12.42 212.04 2.011 30,200 5HR 50MIN 7HR 5MIN 7HR 40MIN 6.69 203.67 1.712 27,600 5HR 15MIN 7HR 45MIN 17HR 0MIN 15.38 188.16 2.213 23,900 4HR 50MIN 6HR 35MIN 18HR 0MIN 14.96 179.12 2.014 22,000 5HR 20MIN 6HR 50MIN 13HR 10MIN 12.74 163.63 1.615 19,600 5HR 40MIN 8HR 0MIN 30HR 5MIN 10.25 149.61 1.016 13,200 6HR 40MIN 9HR 40MIN 23HR 35MIN 4.99 147.74 0.817 10,500 7HR 0MIN 9HR 55MIN 4HR 55MIN 1.50 146.78 1.018 9,300 7HR 30MIN 12HR 0MIN 35HR 25MIN 16.34 144.54 0.919 8,800 8HR 15MIN 13HR 10MIN 36HR 10MIN 17.38 139.17 0.920 5,600 9HR 5MIN 17HR 35MIN 9HR 40MIN 16.24 135.69 0.621 5,500 9HR 50MIN 17HR 50MIN 9HR 10MIN 18.48 133.30 4.022 5,500 10HR 20MIN 18HR 25MIN 9HR 10MIN 20.26 130.21 2.623 5,500 11HR 20MIN 18HR 40MIN 8HR 25MIN 12.85 127.80 5.824 5,500 11HR 55MIN 19HR 0MIN 8HR 10MIN 15.20 117.11 2.625 5,500 12HR 30MIN 19HR 10MIN 3HR 5MIN 1.44 111.41 5.526 5,400 13HR 0MIN 19HR 35MIN 7HR 45MIN 19.22 102.20 1.527 5,400 13HR 55MIN 20HR 15MIN 37HR 5MIN 13.90 94.72 3.728 5,400 14HR 15MIN 20HR 15MIN 7HR 10MIN 16.18 86.12 3.529 5,400 15HR 15MIN 20HR 55MIN 6HR 50MIN 17.75 77.29 3.030 5,400 15HR 45MIN 21HR 30MIN 41HR 15MIN 16.06 69.34 5.631 5,400

FAIRWEATHER (SOUTH)

Contained within Pajaro River Levees


MaximumFlow (cfs)


PeakElevationTime


MaximumElevation

(ft)


1 469,600 0HR 30MIN 0HR 55MIN 11HR 0MIN 21.71 367.65 7.62 328,500 0HR 35MIN 1HR 0MIN 8HR 45MIN 19.23 366.14 4.23 252,900 0HR 50MIN 1HR 15MIN 12HR 55MIN 18.77 348.45 4.44 209,500 0HR 55MIN 1HR 15MIN 7HR 55MIN 11.07 324.76 3.65 181,200 1HR 20MIN 1HR 50MIN 9HR 30MIN 10.58 309.42 4.96 173,500 1HR 40MIN 2HR 5MIN 9HR 55MIN 12.61 290.02 4.17 159,800 1HR 50MIN 2HR 15MIN 16HR 30MIN 16.10 271.48 4.38 149,500 2HR 10MIN 2HR 30MIN 10HR 20MIN 14.58 252.52 4.19 135,800 2HR 25MIN 2HR 50MIN 7HR 10MIN 12.22 233.10 3.310 119,200 2HR 45MIN 3HR 35MIN 20HR 30MIN 14.61 214.23 2.911 87,500 3HR 40MIN 4HR 35MIN 10HR 20MIN 10.02 207.00 2.512 73,100 3HR 40MIN 5HR 0MIN 18HR 20MIN 19.66 192.44 2.113 66,100 3HR 40MIN 5HR 15MIN 19HR 10MIN 18.95 183.11 2.014 64,000 4HR 0MIN 5HR 30MIN 14HR 40MIN 14.84 165.73 2.715 60,200 4HR 10MIN 6HR 15MIN 34HR 25MIN 13.11 152.47 1.516 46,300 5HR 0MIN 7HR 0MIN 28HR 15MIN 7.09 149.84 1.417 30,800 5HR 30MIN 8HR 20MIN 14HR 5MIN 3.04 148.32 0.818 24,000 5HR 50MIN 8HR 50MIN 45HR 5MIN 18.26 146.46 1.219 23,300 6HR 25MIN 9HR 40MIN 4HR 20MIN 19.64 141.43 1.420 11,500 7HR 5MIN 15HR 20MIN 9HR 25MIN 21.29 140.74 0.621 11,400 7HR 40MIN 15HR 45MIN 9HR 15MIN 23.63 138.45 4.922 11,400 8HR 5MIN 16HR 10MIN 9HR 15MIN 24.89 134.84 3.623 11,300 8HR 55MIN 16HR 35MIN 8HR 45MIN 16.72 131.67 6.224 11,300 9HR 25MIN 16HR 50MIN 8HR 30MIN 18.50 120.41 6.425 11,300 10HR 0MIN 17HR 20MIN 19HR 25MIN 6.06 116.03 5.026 11,300 10HR 20MIN 17HR 45MIN 20HR 5MIN 24.00 106.98 2.127 11,200 11HR 5MIN 18HR 0MIN 39HR 50MIN 18.98 99.80 4.328 11,200 11HR 25MIN 18HR 5MIN 7HR 50MIN 19.27 89.21 3.229 11,200 12HR 10MIN 18HR 35MIN 7HR 40MIN 21.50 81.04 2.930 11,200 12HR 35MIN 19HR 5MIN 7HR 35MIN 20.43 73.71 5.531 11,200 13HR 5MIN 19HR 10MIN 7HR 15MIN 16.48 65.29 3.732 11,200 13HR 30MIN 19HR 35MIN 7HR 15MIN 16.63 56.55 2.133 11,200 14HR 30MIN 19HR 55MIN 5HR 30MIN 2.86 50.06 1.134 11,100 15HR 35MIN 21HR 30MIN 8HR 0MIN 17.32 45.30 0.835 11,100 16HR 15MIN 21HR 40MIN 6HR 30MIN 18.38 40.56 1.236 11,000 16HR 30MIN 22HR 55MIN 7HR 30MIN 18.21 31.77 0.837 10,600 17HR 5MIN 24HR 25MIN 8HR 25MIN 19.04 26.49 0.938 8,700 17HR 40MIN 29HR 20MIN 12HR 45MIN 17.71 22.02 0.939 7,300 18HR 25MIN 30HR 10MIN 12HR 50MIN 11.24 15.23 0.640 6,800 19HR 5MIN 31HR 45MIN 13HR 45MIN 8.25 12.31 0.741 6,400 24HR 50MIN 37HR 5MIN 13HR 20MIN 6.74 8.77 0.6

INFLOW DESIGN FLOOD (SOUTH)

HS2753

HS4885

HS5363

HS5342

HS2775

HS5239

Station 27City of San Jose

El Toro StationSanta Clara County

Saint Louise Health Center

Santa Teresa Community Hospital

LEROY ANDERSON DAM

1S

6N

1N

5N

4N

3N

2N

8N

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9N

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Dam Failure Inundation

Santa Clara County Schools

Dams

Hospitals

Fire Stations

Cross Sections

$ Reference Points

Fair Weather

Inflow Design Flood

FIN

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HS2967

HS2953

HS3308

HS4926


















Campbell StationSanta Clara County

O'Connor HospitalHolderman Sanitarium

Good Samaritan Hospital

Santa Teresa Community Hospital

Santa Clara Valley Medical Center

13N

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14N15N

18N

17N

12N

11N

10N

19N

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HS4962

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City of San Jose





Station 4City of Milpitas











Station 9City of Santa Clara










Kaiser Hospital

San Jose Hospital

San Jose Hospital

O'Connor Hospital

Holderman Sanitarium

Agnews State Hospital


Elmwood Rehabilitation Center

25N

26N

19N

24N

20N

22N23N

21N

27N

28N

18NEsri, HERE, DeLorme, MapmyIndia, © OpenStreetMap contributors, Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS,USDA, USGS, AeroGRID, IGN, and the GIS User Community

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Station 6City of Sunnyvale








Elmwood Rehabilitation Center

28N

29N

27N26N

30N

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25N24N


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Fair Weather

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HS3002

HT1628

HT1233

HT1258

Station 1Moffet Field




Station 6City of Palo Alto






Station 5City of Mountain View




AdministrationCity of Mountain View

Brouer Medical CenterLytton Gardens Health Care Center

Palo Alto Medical Foundation Clinic

29N

30N

28N

31N

27N32

N

33N34

N35N

26N

25NEsri, HERE, DeLorme, MapmyIndia, © OpenStreetMap contributors, Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS,USDA, USGS, AeroGRID, IGN, and the GIS User Community

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Dams


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Fire Stations

Cross Sections

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Fair Weather

Inflow Design Flood

FIN

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HS2753

HS5363

HS5277

HS5324

El Toro StationSanta Clara County

Dunne/Hill StationSanta Clara County

Station 1South Santa Clara County CFD

CoyoteCalifornia Department of Forestry (CDF)

Morgan HillCalifornia Department of Forestry (CDF)

Saint Louise Health Center

South Valley Medical Center

COYOTE DAM

LEROY ANDERSON DAM

4S

2S

3S

5S

1S

6S

1N

7S

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2.0C

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Dams


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Fire Stations

Cross Sections

$ Reference Points

Fair Weather

Inflow Design Flood

FIN

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HS4875

GU3806

HS2737

HS3314

Sunrise StationCity of Gilroy

Chestnut StationCity of Gilroy

Las Animas StationCity of Gilroy



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South Valley Hospital

South Valley Medical Center

Wheeler Hospital (historical)

9S

10S

8S

7S

11S

12S

14S

13S

15S

16S

17SEsri, HERE, DeLorme, MapmyIndia, © OpenStreetMap contributors, Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS,USDA, USGS, AeroGRID, IGN, and the GIS User Community

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Fair Weather

Inflow Design Flood

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GU2248

GU2230

GU3209 Aromas Fire District

North County Fire District

WATSONVILLE COMMUNITY HOSPITAL

41S

38S

37S

40S

39S

36S

35S

34S

33S

32S

29S

30S

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28S

27S


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Schools

$ Reference Points

Fire Stations

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Dams

Cross Sections

Fair Weather

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FIN

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anderson dam inundation maps 2016 - santa clara valley water … · 2018-02-07 · leroy anderson...

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