figure 3.1.1 project location for 1987 master planopen_jicareport.jica.go.jp/pdf/11871183_04.pdf ·...

The Feasibility Study of the Flood Control Projectfor the Lower Cagayan River

in the Republic of the Philippines

JA PA N INT E R NA T IONA L COOPE R A T ION A GE NCY

DABUBU RIVER IRRIGATION SCHEME

CASECNAN TRANSBASIN DIVERSION PROJECT

DIDUYON HYDROPOWER DEVELOPMENT SCHEME

MATUNO MULTIPURPOSE PROJECT

MAGAT RIVER MULTIPURPOSE PROJECT (Improvement O&M)

ALIMIT MULTIPURPOSE PROJECT

SIFFU MULTIPURPOSE PROJECTMALLIG RIVER IRRIGATION SCHEME

MALLIG MULTIPURPOSE PROJECT

CHICO RIVER IRRIGATION SCHEME

NARROW IMPROVEMENT SCHEME

DUMMON RIVER IRRIGATION SCHEME (Rehabilitation)

BAGGAO IRRIGATION SCHEME (Rehabilitation)

SAN PABLO CABAGAN IRRIGATION SCHEME

TUMAUINI IRRIGATION SCHEME (Rehabilitation)

PINACANAUAN IRRIGATION SCHEME (Rehabilitation)

SOLANA IRRIGATION SCHEME (Rehabilitation)

TUGUEGARAO DIKE SCHEME

TUGUEGARAO IRRIGATION SCHEME

CABAGAN DIKE SCHEME

LULUTAN IRRIGATION SCHEME

ILAGAN IRRIGATION SCHEME

GAPPAL IRRIGATION SCHEME

PILOT SCHEME FOR UPLAND DEVELOPMENT (Santor Dam)

ZINUNDUNGAN IRRIGATION EXTENSION SCHEME

ALCALA AMULUNG WEST IRRIGATION SCHEME

TANUDAN HYDROPOWER DEVELOPMENT SCHEME

IBULAO HYDROPOWERDEVELOPMENT SCHEME

PILOT SCHEME FOR UPLAND DEVELOPMENT (Carmencita Pond)

CIADP

CIADP

Proposed

F35

Figure 3.1.1Project Location for 1987 Master Plan

Magat Dam

Toan

Rive

r

Pang

ul R

iver

Tanu

don

Rive

r

Sta. C

ruz Rive

r

Casecnan River

Dummon River

Zinu

ndun

gan

River

Paret River

Tuguegarao River

Matalag R

iver

Chic

o River

Mab aca River

Salta n Rive

r Caga

yan R

iver

Pasil River

Mallig

Rive

r

Siff u River

Magat River

Sabo

ngan

Riv

er

T um auini River

Abuan R iver

Catalangan R

iverCa

g ayan

Riv

er

Disbumgan River

Ibulao RiverDa vid

Rive

r

Dibubu Ri ver

Dibuluan River

Ilaga

n Ri

ver

Diduyo

n Ri

ver

Addalam River

Kas ibu River

Cad

a cla

n R

iver

1

253

7

3

45

6

28

9

16

11

10

12

1317

14

18

20

1121

25

27

958

23

268

57

15

19

24

28

29 55

13 31

5

5610

47 32

30

3

1514

5433

592

434

48

46

36

3545

737

38

60

64

63

61

39

40

50

41

BabuyanChannel

PhilippineSea

121。30'

121。00'

122。00'

18。

00'

17。

30'

17。

00'

16。

30'

16。

00'

Climatological StationNo. Station Name No. Station Name1�2�3�4�5�6�7�8

AparriTuguegaraoEchagueSanto DomingoBaretbetAlimanao R.ConsueloBaligatan

9�10�11�12�13�14�15

LagaweWacalBontocBayombongHapidMalasinSan Isidro

Rainfall Gauging StationNo. Station Name1�2�3�4�5�6�7�8�9�10�11�12�13�14�15�16�17�18�19�20�21�22�23�24�25�26�27�28�29�30�31�32�33�34�35�36�37�38�39�40�41�42�43�44�45�46�47�48�49�50�51�52�53�54�55�56�57�58�59�60�61�62�63�64

AparriLal-loAggunetanBitag GrandeImurungBauanTuaoTuguegaraoBagabbaPinukpukSalegsegTomianganNanengGuilguilaTumauiniCabaganLubuaganBasaoIlaganBanga-anBontocBarligBaukoReina MercedesMt. PolisMt. DataNamulditanLagaweNayonEchagueDiadiSolanoBayombongBaratDupaxMalicoImuganConsueloGabongDakganCasiguranTaanUpper CasecnanAuroraAritaoKayapaWacalBantiConwapDippadiwTabayongLiasSan FranciscoCabarroguisHapid. LamutBaretbetBaligatanPoblacion LagaweSto DomingoKasibuKamamasiBiyoyAlayan�Packet

0 10 20(km)

Scale

30 40 50

N

Climatological StationRainfall Gauging Station

LEGEND

Figure 5.2.1Location of Meteorological Stations

Magat Dam

Toan

Rive

r

Pang

ul R

iver

Tanu

don

Rive

r

Sta. C

ruz Rive

r

Casecnan River

Dummon River

Zinu

ndun

gan

River

Paret River

Tuguegarao River

Matalag R

iver

Chic

o River

Mab aca River

Salta n Rive

r Caga

yan R

iver

Pasil River

Mallig

Rive

r

Siff u River

Magat River

Sabo

ngan

Riv

er

T um auini River

Abuan R iver

Catalangan R

iverCa

g ayan

Riv

er

Disbumgan River

Ibulao RiverDa vid

Rive

r

Dibubu Ri ver

Dibuluan River

Ilaga

n Ri

ver

Diduyo

n Ri

ver

Addalam River

Kas ibu River

Cad

a cla

n R

iver

1

2

3

4

56

78

9 10

27 66

1

2

11

4

18

21

12

3

2867

13

14

1516

1777

205

2419

22

6

2532

26

3635

30

31

28

378

389

3934

42

30

1815

14

1347

4850

1768

2942

7034

73

49 16

45

35 7431

24

615521

26

36

75

57

3271

72

33

63

39

4140

255362

59 23

2258

5420

37

7652

46

4412

43

10

40

4111

73 297

121。30'

122。00'

18。

00'

17。

30'

17。

00'

16。

30'

16。

00'

Streamflow Gauging StationNo. Station Name No. Station Name1�2�3�4�5�6�7�8910111213141516171819202122232425262728293031323334�3536�37

AparriMaddaleroCatayauanCentro, CamalaniuganSimayPoblacion, GattaranCalaoaganNossipingTupangCalantacAsassiEscoltaAnguirayCentro, IguigBayoPangulCentro, SolanaLarion AltoPinukpukCataggamanNamabbalanLiglig GawaanNanengAbbot�PasonglaoBaba-alanPatocAbutAntaganAmpawilenAnabelTomianganPattacanTaedBasaoAmbatoCasile

383940414243444546474849505152535455565758596061�62�63

MaligayaMunozMalalamPalattaoSupangMinangaDisulapCaipilanDipalinOscariz�DulaoCabulayHapidCamandagPangalPanangGuinalvinBanteManamtamKamamasiMinuriDabubuNPC LamutBatoDippadiwPingkian

Sediment / Water QualityNo. Station Name1�2�3�4�5�6�7�8�9�10�11�12�13�14�15�16�17�18�19�20�21�22�23�24�25�26�27�28�29�30�31�32�33�34�35�36�37�38�39�40�41�42

CalaoaganAsassiEscoltaLarion AltoLiglig GawaanPasonglaoAntaganCasileMunozMalalam (Alinguigan)PalattaoMinangaOscarizMagat DamsiteDulaoCabulayLamutHapid (Tupaya)CamandagGuinalvinBanteMinuriDabubuBatoDippadiwPingkianBangagBaybayogRosarioTungngodCarebBalilingBetiIlutAurora EastGamisJonesMaddelaConeapGabongDakganBagabag

Station NameTaanPonggoBangagBaybayogRosarioTugngodCarebBalilingBetiIlutAurora eastGomisJones

No.64�65�6667686970717273747576

0 10 20(km)

Scale

30 40 50

N

LEGENDStreamflow Gauging StationSediment / Water Quality Sampling

Figure 5.2.2Location of Hydrological Stations

No. Station Item Elevation

Latitude Longitude (meter asl)1 Aparri

Air TemperatureRelative HumidityWindSunshine HoursEvaporationAtmospheric Pres

2 TuguegaraoAir TemperatureRelative HumidityWindSunshine HoursAtmospheric PresEvaporation

3 EchagueAir TemperatureRelative HumidityWindSunshine Hours

Evaporation4 Santo Domingo

Air TemperatureRelative HumidityWindSunshine HoursEvaporation

5 Barelbet,Bagabag Air Temperature

Relative Humidity16o35'45" 121o17'10"Wind

Sunshine HoursEvaporation

6 Alimanao R.,Tuguegarao Air Temperature

Relative HumidityWindSunshine HoursEvaporation

7 Consuelo,Santa Fe Air Temperature


8 Baligatan(Talictic) Air Temperature


9 LagaweAir TemperatureWindSunshine HoursEvaporation

320

121-40-00

600

16o 25'

Location

120-57-00

18-22-00

17-39-00

16-42-00

62

66

3121-38-00

121-45-00

400

121-27-00 200

121-07-00

121o 06'

16-10-00

16-48-00

16-48-00

Climatological Data Collected During Master Plan Study Additional Climatological Data Collected During Feasibility Study

Daily Data

Monthly Data

No. Station Item Elevation

Latitude Longitude (meter asl) Climatological Data Collected During Master Plan Study10 Wacal Rainfall

Air TemperatureRelative Humidity

WindSunshine Hours

Evaporation11 Bontoc


WindSunshine Hours

Evaporation12 Bayombong

NVSIT Air TemperatureRelative Humidity

WindSunshine Hours

Evaporation13 Hapid


WindSunshine Hours

Evaporation14 Malasin


WindSunshine Hours

Evaporation15 San Isidro


WindSunshine Hours

Evaporation16 APC Comp.,

Minanga Norte, Air TemperatureIguig, Cagayan Relative Humidity

WindSunshine HoursEvaporationAtom. Pressure

17 San FelipeIlagan, Isabela Maximum Temp.

Minimum Temp.WindRelative HumidityEvaporationAtom. Pressure

17-46-20 121-44-10 18

Location

280121-15-0016-42-00

Daily Data

Monthly Data

Additional Climatological Data Collected During Feasibility Study

No. Station Elev.

Latitude Longitude (m. asl) Data Collected During Master Plan Study1 Aparri 22 Lal-Lo 83 Aggunetan, Gattaran 104 Bitag Grande5 Imurung6 Bauan, Panablanca7 Tuao 17-45'8 Tuguegarao9 Bagabba, Paneblanca

PinukpukSalegseg, BalbalanTomiangan, Tabuk

Naneng, TabukGuiguila, Tanudan

TumauiniCabaganLubuagan

Basao, TinglayanIlagan

Banga-AnBontocBarligBauko

Reina MercedesMt. Polis, BanagueMt. Data, Benguet

Namulditan, LagaweLagawe

Nayon, LamutEchague

DiadiSolano

BayombongBarat, Bambang

DupaxMalica

Imugan, Santa FeConsuelo, Santa Fe

GabongDakgan

Casiguran 3Taan

43 Upper Casecnan

Location Source

PAGASA Aparri/Ctral

PAGASA Central

PAGASA CentralPAGASA

PAGASA Central

PAGASA FFWS

Pagasa Central

NIA

Additional Data Collected

101112131415161718192021222324252627282930313233343536373839404142

16-31'16-29'16-23'16-17'16-11'16-10'16-10'16-01'16-05'16-17'

17-07'17-05'17-03'16-59'16-59'16-58'16-51'16-51'16-48'16-43'16-42'16-40'

17-35'17-31'17-26'17-24'17-18'17-17'17-26'17-22'17-14'17-09'

18-21'18-12'18-04'17-54'17-55'17-50'

17-37'17-37'

121-39'121-40'121-38'121-51'121-56'121-43'121-28'121-44121-47'121-22'121-06'121-26'121-14'121-14'121-49'121-46'121-07'121-07'121-53'120-54'120-58'121-06'120-52'121-50'121-02'120-52'121-05'121-04'121-10'121-40'121-22'121-11'121-09'121-06'121-05'120-51'120-55'120-57'121-21'121-30'122-07'

800506

66168255278610390

1,250

60047

1,600855

1,5001,200

341,9001,500

900480320

10351920

1201,120

380418500

30

No. Station Elev.

Latitude Longitude (m. asl) Data Collected During Master Plan StudyAuroraAritaoKayapaWacolBanti

ConwapDippadiwTabayang

Lias, BarligSan Fransicso

NIA-PIO, CabarraguisHapid, Lamut

Baretbet (Dumayup)Baligatan

Poblacion LagaweSto Domingo

KasibuKamamasi

BiyoyAloyanPocket 640

17-46' 121-44' 1818o 20' 27" 121o 26' 48"

Location Source

NIA

NIAPAGASA FFWSPAGASA FFWSPAGASA FFWSPAGASA Central

DA IguigDA Region II

Additional Data Collected444546474849505152535455565758596061626364

65666768697071

Magat DamsiteGamu

Maris DamsitePangal

Cullalabo Burgos, IsabellaMinanga, Iguig, Isabel

Abulug

129280230200400320701639623653

17-05'18-10'16-30'16-42'16-35'16-48'16-48'16-25'16-19'16-16'16-15'16-19'16-17'

121-08'121-39'121-32'121-15'121-16'121-27'121-07'121-06'121-18'121-25'121-24'121-24'121-20'

Magat Dam

Toan

Rive

r

Pang

ul R

iver

Tanu

don

Rive

r

Sta. C

ruz Rive

r

Casecnan River

Dummon River

Zinu

ndun

gan

River

Pare t RiverTuguegarao River

Matalag R

iver

Chic

o River

Mab aca River

Salta n Rive

r Caga

yan R

iver

Pasil River

Mallig

Rive

r

Siff u River

Magat River

Sabo

ngan

Riv

er

Tumauini River

Abuan R iver

Catalangan R

iver

Cag ay

an R

iver

Disbumgan River

Ibulao RiverDa vid

Rive

r

Dibubu Riv er

Dibuluan River

Ilaga

n Ri

ver

Diduyo

n Ri

ver

Addalam River

Kas ibu River

Cad

a cla

n R

iver

3000

2500

3000

2500

2500

3000

4000

5000

4000

3000

2500

BabuyanChannel

PhilippineSea

121。30'

121。00'

122。00'

18。

00'

17。

30'

17。

00'

16。

30'

16。

00'

0 10 20(km)

Scale

30 40 50

NAparri(mm)

500�

400�

300�

200�

100�

0JFMAMJJASOND

(mm)

500�

400�

300�

200�

100�

0JFMAMJJASOND

Naneng(mm)

500�

400�

300�

200�

100�

0JFMAMJJASOND

Guilguila

(mm)

500�

400�

300�

200�

100�

0JFMAMJJASOND

Barlig

(mm)

500�

400�

300�

200�

100�

0JFMAMJJASOND

Bontoc

(mm)

500�

400�

300�

200�

100�

0JFMAMJJASOND

Bauko

(mm)

700�

600�

500�

400�

300�

200�

100�

0JFMAMJJASOND

Mt. Data

(mm)

500�

400�

300�

200�

100�

0JFMAMJJASOND

Mt. Polis

(mm)

500�

400�

300�

200�

100�

0JFMAMJJASOND

Consuelo

(mm)

500�

400�

300�

200�

100�

0JFMAMJJASOND

Tuao

(mm)

500�

400�

300�

200�

100�

0JFMAMJJASOND

Tuguegarao

(mm)

600�

500�

400�

300�

200�

100�

0JFMAMJJASOND

Casiguran

(mm)

500�

400�

300�

200�

100�

0JFMAMJJASOND

Ilagan

(Data 1965-1978)

(mm)

500�

400�

300�

200�

100�

0JFMAMJJASOND

Bitag Grande

(Data 1975-1978)

(mm)

500�

400�

300�

200�

100�

0JFMAMJJASOND

Basao

(Data 1963-1978)

Figure 5.2.5Isohyetal Map in the Cagayan River Basin

No. Station RiverDrainage

Area(km2)

DischargeMeasurement Record

Zero ofGauge EL.

(m)Latitude Longitude (meter asl) Data Collected During Master Plan Study

1 Aparri Cagayan 17-40-00 121-37-00 27,281 0.02 Maddalero, Buguey Banurbor 18-16-00 121-50-00 112 Available -0.5743 Catayauan, Lal-lo Cagayan 18-18-00 121-39-00 27,081 0.04 Centro, Camalaniugan Cagayan 18-17-00 121-41-00 27,230 0.05 Simay (Alannay), Lasam Zinundungan 18-04-00 121-35-00 189 Available6 Poblacion, Gattaran Cagayan 18-04-00 121-38-00 26,615 0.07 Calaoagan, Dacquel Dummon 18-03-00 121-43-00 308 Available8 Nassiping, Gattaran Cagayan 17-58-00 121-37-00 21,473 0.09 Tupang Alcala Cagayan 17-57-00 121-38-00 21,436 0.010 Calantac, Alcala Paret 17-55-00 121-41-00 907 Available 3.34111 Asassi, Baggao Paret 17-55-00 121-47-00 73012 Escolta, Rizal Matalag 17-50-00 121-25-00 655 Available13 Anguiray, Amulong Cagayan 17-49-00 121-43-00 20,213 0.014 Centro, Iguig Cagayan 17-45-00 121-44-00 19,683 0.015 Bayo, Iguig Cagayan 17-42-00 121-44-00 19,625 0.016 Pangol, Solana Pangul 17-40-00 121-38-00 312 Available 20.39917 Centro, Solana Cagayan 17-39-00 121-41-00 19,545 0.018 Larion Alto, Tuguegarao Pina de Tuguegarao 17-38-00 121-46-00 655 Available 18.18419 Pinukpuk Saltan 17-37-00 121-24-00 856 Available20 Cataggaman, Tuguegarao Cagayan 17-35-00 121-40-00 19,494 0.021 Namabbalan, Tuguegarao Cagayan 17-32-00 121-47-00 18,685 0.022 Liglig Gawaan, Balbalan Saltan 17-31-00 121-12-00 25523 Naneng, Tabuk Chico Available24 Abbot, Pinukpuk Chico 17-42-00 121-26-00 3,349 43.69725 Pasonglao, Tabuk Chico 17-24-00 121-25-00 1,987Available26 Baba-Alan, Tabuk Tanudan 17-23-00 121-16-00 365 Available27 Patoc, Babaalan Tanudan28 Abut, Quezon Casile Creek 17-20-00 121-35-00 29 113.71929 Antagan, Tumauini Pina de Tuguegarao 17-17-00 121-56-00 170 Available30 Ampawilen Chico 751 Available31 Anabel Chico 605 Available32 Tomiangan Chico 17-24-00 121-14-00 1,408Available33 Pattacan, Tomiangan Chico34 Taed Chico 17-05-00 120-59-00 391 Available35 Basao Chico 17-14-00 121-08-00 891 Available36 Ambato, Tinglayan Chico 17-16-00 121-09-00 1,087Available37 Casile, Mallig Casile Creek 17-13-00 121-36-00 195 Available 49.11938 Maligaya, Mallig Mallig 17-11-00 121-36-00 563 Available 41.71639 Munoz, Roxas Siffu 17-09-00 121-34-00 686 Available 50.52040 Malalam (Alinguigan) Pina de Tuguegarao 17-08-00 121-54-00 3,123Available 26.14341 Palattao, Naguilian Cagayan 17-01-00 121-50-00 6,626Available 27.22742 Supang, Sabangan Sabangan 17-00-00 120-54-00 57 Available43 Minanga, SN Mariano Pina de Ilagan 17-00-00 122-01-00 1,565 Available44 Disulap, SN Mariano Disulap 16-58-00 122-05-00 146 Available45 Caipilan, Aurora Taotao 16-57-00 121-33-00 430 62.41646 Dipalin, Binatog Disabungan 16-57-00 122-04-00 198 Available

Location

Daily Gauge HeightDaily Discharge

Source


No. Station RiverDrainage

Area(km2)

DischargeMeasurement Record

Zero ofGauge EL.

(m)Latitude Longitude (meter asl) Data Collected During Master Plan Study

47 Oscariz (Maris Dam) Magat 16-47-00 121-30-00 4,150 89.74748 Dulao, Lagawe Alimit 16-44-00 121-20-00 573 Available49 Cabulay, Santiago Diadi 16-44-00 121-29-00 196 Available 79.48750 Hapid, Lamut (Tupaya) Ibulao 16-43-00 121-15-00 606 Available51 Camandag, Kiangan Cadaclan 16-36-00 121-03-00 261 Available52 Pangal, Echague Cagayan 16-36-00 121-41-00 4,24453 Panang, SN Agustin Cagayan 16-25-00 121-45-00 2,39254 Guinalvin, Aglipay Addalam 16-29-00 121-39-00 921 Available55 Bante, Bambang Matuno 16-27-00 121-04-00 558 Available56 Manamtam, Bambang Matuno57 Kamamasi, Kasibu Diduyon 16-16-00 121-27-00 462 Available58 Minuri, Jones Dibuluan 272 Available59 Dabubu, Pequino Dabubu 16-27-00 121-47-00 162 Available60 NPC Lamut Magat61 Bato, Bayombong Magat 16-26-00 121-07-00 1,649Available 294.05762 Dippadiw, Madella Cagayan 16-23-00 121-44-00 2,380Available63 Pingkian, Kayapa Sta. Cruz 16-19-00 120-57-00 162 Available64 Taan Taan65 Ponggo, Madella Casecnan66 Bangag Cagayan 18-07-00 121-41-00 Available -1.5267 Baybayog Paret 17-54-00 121-41-00 966 Available 1.9868 Rosario Rosario 16-39-00 121-18-00 Available 225.3769 Tungngod Burnay 16-48-00 121-07-00 95 Available70 Careb Lanog 16-34-00 121-12-00 Available71 Baliling Sta. Fe 16-14-00 120-58-00 96 Available 487.3272 Beti Marang 16-15-00 121-03-00 Available73 Ilut Ilut 16-40-00 121-26-00 Available 145.48974 Aurora East Ganano Available75 Gamis Dumatata 16-40-00 121-32-00 Available76 Centro Jones Cagayan 16-33-25 121-42-00 2,960Available77 Tuguegarao Cagayan78 Tumauini Cagayan

79 Pinaripay, Agripay Addalam 16-27-57 121-19-54 709 Available 92.2480 Nagtipunan, Quirino Cagayan 16-18-25 121-39-56 2,323

Location

Daily Gauge Height

Daily Discharge

Source

DPWHDPWHDPWH

DPWHDPWH



in the Republic of the PhilippinesJAPAN INTERNATIONAL COOPERATION AGENCY

Figure 5.2.7

List of Sediment and Water Quality Record

Sediment

Water Quality

No. Station River

Latitude Longtitude1 Calaogan, Dacquel Dummon 18-03-00 121-43-002 Asassi, Baggao Paret 17-55-00 121-47-003 Escolta, Rizal Matalag 17-50-00 121-25-004 Larion Alto, TuguegaraoTuguegarao 17-38-00 121-46-005 Liglig Gawaan, BalbalanSaltan 17-31-00 121-12-006 Pasonglao, Tabuk Chico 17-24-00 121-25-007 Antagan, Tumauini Tumauini 17-17-00 121-56-008 Casile, Mallig Casile 17-13-00 121-36-009 Munoz, Roxas Siffu 17-09-00 121-34-0010 Malalam (Alinguigan) Ilagan 17-08-00 121-54-0011 Palattao, Naguilian Cagayan 17-01-00 121-50-0012 Minanga, Sn Mariano Ilagan 17-00-00 122-01-0013 Oscariz, Sn Mateo Magat 16-47-00 121-30-0014 Magat Damsite Magat15 Dulao, Lagawe Alimit 16-44-00 121-20-0016 Cabulay, Santiago Diadi 16-44-00 121-29-0017 Lamut Lamut18 Hapid, Lamut (Tupaya) Ibulao 16-43-00 121-15-0019 Kamandag, Kiangan Cadaclan 16-36-00 121-03-0020 Guinalvin, Aglipay Addalam 16-29-00 121-39-0021 Bante, Bambang Matuno 16-27-00 121-04-0022 Minuri, Jones Dibuluan23 Dabubu, Pequino Dabubu 16-27-00 121-47-0024 Bato, Bayombong Magat 16-26-00 121-07-0025 Dippadiw, Madella Cagayan 16-23-00 121-44-0026 Pingkian, Kayapa Sta. Cruz 16-19-00 120-57-0027 Bangag Cagayan 18-07-00 121-41-0028 Baybayog Paret 17-54-00 121-41-0029 Rosario Rosario 16-39-00 121-18-0030 Tungngod Burnay 16-48-00 121-07-0031 Careb Lanog 16-34-00 121-12-0032 Baliling Sta. Fe 16-14-00 120-58-0033 Beti Marang 16-15-00 121-03-0034 Ilut Ilut 16-40-00 121-26-0035 Aurora East Ganano36 Gamis Dumatata 16-40-00 121-32-0037 Jones Cagayan 16-33-00 121-42-0038 Madella, Quirino Tabayong39 Conwap Cagayan40 Gabong Casecnan41 Dakgan Casecnan42 Bagabag Magat

Location

Data Collected During Master Plan Study Additional Data Collected



Figure 5.3.1

JAPAN INTERNATIONAL COOPERATION AGENCYFlow Chart for Flood Analysis

a) Construction of River System Model

Base Point

RiverSystemModel

Basin andChannelFactor

Computed FloodHydrograph at MagatDam

Model is Suitableor Not

Storage Function Modelfor the Cagayan RiverBasin (K, P, Tl, f1, Rsa,and Qb)

Model is Suitableor Not

Probable RunoffDistribution underPresent River Condition

Probable RunoffDistribution under theAlternative FloodControl Plans

HourlyRunoff Data

Lag Time (Tl)Base Flow (Qb)Primary RunoffCoefficient (f1)Saturated Rainfall (Rsa)

Alternative Flood Control Plans

HourlyRainfall Data

DesignRainfallPattern

DesignRainfall

Distribution

Daily RainfallData

AnnualMaximum

Basin MeanRainfall

RainfallCoefficient(by ThiessenPolygonMethod)

ProbableRainfall

b) Rainfall Analysis

c) Flood Runoff Analysis

Basin Map(1/50,000)

Observed FloodHydrographs at

Magat Dam

Storage Function Modelfor the Magat RiverBasin (K, P)

Yes

No

Yes

No

Recorded Flood PeakRunoff at SelectedGauges in the CagayanRiver Basin

River Course

Basin Boundary

Sub-basin Boundary

Base Point

Sub-basin Number

Channel Number

Existing Dam

Proposed Dam

Legend

NoNoNoNo

m

NoNNN

BP. No

1

No.2 Dam

m

Diduyon Da

Matuno Daa

0

21

8

9

8

Pangul

Riv

er

secnan R

iver

r

M t l gR

r

Riv

er

Pa

IlIIa

aan

61666

31333

6464646

73777

333333

31

11

2

3

22222

Figure 5.3.2

Basin Division in the Cagayan River System

N

0 10 20(km)

Scale

30 40 50



Figure 5.3.3Cagayan River System Model for FloodRunoff Analysis

1

1

1

22

2

3

3

3

5 4

4

7

8

12

BP-5

16

BP-4

19

20

21

22

28

BP-2

29

30

BP-1

6

10 11

12

7

4

5

8

5

6

9

13

14

156

9

1716

187

10

819

11

20

BP-9

21BP-8

26

22

13

9

23

14

2425 10

15

27BP-3

BP-7

29

17 11 28

31

18 12 30

3233

3435

3637

38

39

23

13

24

25

14

26

27

40

41

42

43

44 4515

46

4748

49

50

Casecnan Dam

Cagayan No.2Dam

Cagayan No.1Dam

Diduyon Dam

Addalam (A) Dam

Ilagan No.1Dam

DisabunganDam

Matuno No.1 Dam

Alimit No.1 (A) Dam

Magat Dam

Chico No.2 DamSiffu No.1 (A) Dam

Chico No.4 DamMallig No.2 Dam

Pinukpuk Dam

Magat River

Ilagan River

Siffu River

Mallig River

Chico RiverSub-basin

River Channel

Dam

Base Point

Legend

BP-6



Figure 5.3.4

JAPAN INTERNATIONAL COOPERATION AGENCYProbability Distribution of Flood Peak Runoff byReturn Period at Base Points

BP-1(27,300)

BP-2(21,473)

BP-6 (4,551) BP-7 (2,015)

BP-3(15,334)

BP-8 (3,132)BP-4(11,993)

BP-5(6,633)

BP-9 (5,113)

Ilagan No.1 Dam (1,350)Disabungan Dam (652)

PinukpukDam(856)

Chico No.4 Dam(1,410)

Chico No.2 Dam(720)

Mallig No.2Dam (362)

Siffu No.1 (A)Dam (656)

Alimit No.1(A) Dam (559)

Matuno No.1Dam (550)

Magat Dam(4,143)

Addalam (A)Dam (864)

Diduyon Dam(477)

Cagayan No.1Dam (2,364)

Cagayan No.2Dam (1,631)

Casecnan Dam(1,150)

Note : Figures parenthesizad show the Catchment area inkm2.

Unit : m3/secBase Point 1/2 1/5 1/10 1/25 1/50 1/100 1/200 1/1,000 1/10,000

Casecnan 3,600 5,800 7,500 9,700 14,500 20,700 26,000 42,000 72,800Cagayan No.2 3,800 5,800 7,300 9,200 13,500 19,400 24,000 38,000 65,900Cagayan No.1 2,500 4,500 6,200 8,500 12,500 17,200 22,000 34,000 59,400Diduyon 1,300 2,000 2,600 3,700 5,200 7,500 9,500 14,500 25,000Addalam (A) 600 1,300 1,900 2,900 4,200 5,650 7,500 13,000 24,550Matuno No.1 750 1,050 1,300 1,550 1,800 2,050 2,300 3,000 4,150Alimit No.1 (A) 450 700 850 1,100 1,350 1,650 2,000 3,200 5,750Magat - - - - - - - - -Ilagan No.1 1,750 3,200 4,300 6,350 7,600 8,950 11,500 17,000 28,050Disabungan 1,050 1,900 2,700 3,800 5,400 7,600 9,200 14,000 24,750Siffu No.1 (A) 400 700 950 1,300 1,600 1,950 2,500 4,000 7,100Mallig No.2 300 400 600 800 950 1,100 1,400 2,200 3,950Chico No.2 850 1,350 1,750 2,300 2,850 3,550 4,000 5,300 9,250Chico No.4 800 1,450 2,000 2,750 3,600 4,500 5,400 7,800 12,250Pinukpuk 700 1,200 1,600 2,200 2,700 3,150 4,000 6,300 10,700Base Point No.1 6,200 9,900 12,000 15,700 18,100 21,400Base Point No.2 5,800 9,400 11,500 15,300 17,700 21,000Base Point No.3 6,100 10,300 12,900 17,700 20,900 25,300Base Point No.4 5,400 9,300 11,600 16,200 19,300 23,500Base Point No.5 3,300 5,900 7,200 10,100 12,500 14,700Base Point No.6 2,000 3,000 3,800 5,200 7,500 8,700Base Point No.7 1,200 1,600 2,000 2,700 3,000 3,300Base Point No.8 2,000 3,400 4,700 6,700 7,600 9,400Base Point No.9 2,700 4,500 6,000 7,200 9,500 10,600Base Point No.1 6,200 9,700 11,600 15,000 17,300 20,300Base Point No.2 5,700 9,300 11,200 14,600 16,900 19,900Base Point No.3 6,100 9,800 12,000 16,100 19,000 22,600Base Point No.4 5,400 9,000 10,900 14,700 17,600 21,000Base Point No.5 3,300 5,900 7,200 10,100 12,500 14,700Base Point No.6 2,000 3,000 3,800 5,200 7,500 8,700Base Point No.7 1,200 1,600 2,000 2,700 3,000 3,300Base Point No.8 2,000 3,400 4,700 6,700 7,600 9,400Base Point No.9 2,500 3,500 4,300 5,000 6,300 7,000

Prob

able

Flo

od P

eak

(1-d

ay)

Wit

hout

Mag

at D

amW

ith M

agat

Dam

BP-1 (Mouth of the Cagayan Main Stream)

0

6,000

12,000

18,000

24,000

30,000

BP-3 (Conf. of the Cagayan and the Siffu)

0

6,000

12,000

18,000

24,000

30,000

0

6,000

12,000

18,000

24,000

30,000

BP-2 (Conf. of the Cagayan and the Chico)

0

6,000

12,000

18,000

24,000

30,000

BP-4 (Conf. of the Cagayan and the Ilagan)

0

4,000

8,000

12,000

16,000

20,000

BP-5 (Conf. of the Cagayan and the Magat)

14,700

0

1,800

3,600

5,400

7,200

9,000 8,700

BP-6 (the Chico River Mouth)

BP-7 (the Siffu River Mouth)

0

800

1,600

2,400

3,200

4,000

21,400

0 24 48 72 96 120 144 168 192 216

Time (hour)

0 24 48 72 96 120 144 168 192 216

Time (hour)

0

70

0

70

0

70

0 24 48 72 96 120 144 168 192 216

Time (hour)

0 24 48 72 96 120 144 168 192 216

Time (hour)

0

70

0 24 48 72 96 120 144 168 192 216

Time (hour)

0

70

0 24 48 72 96 120 144 168 192 216

Time (hour)

0

70

0 24 48 72 96 120 144 168 192 216

Time (hour)

0

70

3,300

0 24 48 72 96 120 144 168 192 216

Time (hour)

0

70

0

2,000

4,000

6,000

8,000

10,000

BP-8 (the Ilagan River Mouth)

0

4,000

8,000

12,000

16,000

20,000

0 24 48 72 96 120 144 168 192 216

Time (hour)

0

70

BP-9 (the Magat River Mouth)

9,400

20,300

21,000 19,900

25,30022,600

23,50021,000

10,600

7,000

Without Magat DamWith Magat Dam





River System Model for Streamflow Analysis

The Feasibility Study of the Flood Control Project

for the Lower Cagayan River


JAPAN INTERNATIONAL COOPERATION AGENCY

Figure 5.4.1

1

2

3

5

6

4

9

7

7

6

13

14

15

17

18

19

20020

113

019

018

017

015

014013

108

109

016

110

111

112

8

8

9

16

10

10

029

11

11928

028

30

13

14

15

030

31

031

120

121

122

124

125

126

134

133 132 131 130

129

128

127

40

040041

41

42042

04343

44044

046

4547

48

048049

49

047 045

46135

136

137

123

03333

03434

36036 035

35

37037038

38

39039

051 05050

52052

05353

51

03232

02727 11

011010

107

01212

12

114

115

116

11721

021

11929

105

008

00922

022023

23

24024

25025

26026

001

002101

003102

005 004

004

006

106

007

104

4

5

1

2

3

Ilagan

NO.1 Dam

Ilagan River

Magat River

Siffu River

Siffu NO.1(A) Dam

Mallig NO.2 Dam

Mallig River

Chico River

Chico

NO.2 Dam

Chico

NO.4 Dam

Pinukpuk Dam

Magat Dam

Casecnan Dam

Diduyon Dam

Addalam(A) Dam

Cagayan

NO.2 Dam

Matuno

NO.1 Dam

Alimit

NO.1(A) Dam

Cagayan

NO.1 Dam

Disabungan Dam

：Subbasin

：Dam

： Calculation

： Point

LEGEND



Figure 5.4.2

JAPAN INTERNATIONAL COOPERATION AGENCY

Duration Curve of Estimated 10-day Runoff(1963-1998)

Ilagan

0

500

1,000

1,500

2,000

2,500

0 10 20 30 40 50 60 70 80 90 100Duration (%)

Upper Cagayan

0

500

1,000

1,500

2,000

2,500

0 10 20 30 40 50 60 70 80 90 100Duration (%)

Magat

0

500

1,000

1,500

2,000

2,500

0 10 20 30 40 50 60 70 80 90 100Duration (%)

Siffu-Mallig

0

500

1,000

1,500

2,000

2,500

0 10 20 30 40 50 60 70 80 90 100Duration (%)

Chico

0

500

1,000

1,500

2,000

2,500

0 10 20 30 40 50 60 70 80 90 100Duration (%)

Whole Basin

0

500

1,000

1,500

2,000

2,500

0 10 20 30 40 50 60 70 80 90 100Duration (%)

3,000

3,500

4,000

4,500

5,000

5,500

6,000

6,500

7,000

7,500

8,000

8,500

9,000

Magat Dam

LC-14

LC-13

LC-11

C-6

LC-12BLC

-12B

LC-12ALC

-12A

LC-9A

LC-9B

LC-10

LC-8

LC-7

LC-6

LC-4B LC

-4A

LC-3

LC-5 LC

-2

LC-1

C-4

C-5

C-2

C-3

C-1

S-3

S-4

S-1

S-2

S-5

M-5

M-4

M-3

M-2

M-1

I-4

I-3

I-2

I-1

UC-9

UC-8B

UC-8A

UC-7

UC-6B

UC-6A

UC-3

UC-5

UC-4

UC-2

UC-1

Toan

Rive

r

Pang

ul R

iver

Tanu

don

Rive

r

Sta. C

ruz Rive

r

Casecnan River

Dummon River

Zinu

ndun

gan River

Paret R iver

Tuguegarao River

Matalag R

iver

Chic o Ri

ver

Mab aca River

Salta n Rive

r Caga

yan R

iver

Pasil River

Mallig

Rive

r

Siffu River

Magat River

Sabo

ngan

Riv

er

T um auini River

Abuan River

Catalangan R

iver

Cag ay

an R

iver

Disbumgan River

Ibulao RiverDa vid

Rive

r

Dibub u River

Dibuluan River

Ilaga

n Ri

ver

Diduyo

n Ri

ver

Addalam River

Kasib u River

Cad

a cla

n R

iver

Pinukpuk Dam

Chico No.4 Dam

Mallig No.2 Dam

Chico No.2Dam

SiffuNo.1(A)

Dam

AlimitNo.1(A)

Dam

MatunoNo.1Dam

DiduyonDam

CasecnanDam

Cagayan No.2Dam

Cagayan No.1Dam

Addalam(A) Dam

Ilagan No.1Dam

DisabunganDam

0 10 20(km)

Scale

30 40 50

N

Figure 5.5.1Divided Subbasins for Water Balance Study

Pasonglao (Chico River)

10

100

1,000

10,000

100,000

10 100 1,000

Water Discharge, Qw (m3/sec)

Oscariz (Magat River)

1

10

100

1,000

10,000

100,000

1,000,000

10,000,000

10 100 1,000 10,000Water Discharge, Qw (m3/sec)

Dipadiw (Cagayan River)

1

10

100

1,000

10,000

100,000

10 100 1,000

Water Discharge, Qw (m3/sec)

Rating Curve Estimated in the 1987 MP

Sediment Data Collected in the 1987 MPSediment Data Collected in this JICAStudy

Rating Curve Estimated in this JICA Study

Qs = 0.0025 Qw2.76

Qs = 0.03 Qw2.27

Qs = 0.00022 Qw3.29

Qs = 0.0004 Qw3.17


Sediment Data Collected in the 1987 MP


Sediment Data Collected in the 1987 MP

The Feasibility Study of the Flood Control Project

for the Lower C

agayan Riverin the Republic of the Philippines

JAPA

N IN

TERN

ATIO

NA

L COO

PERA

TION

AG

ENCY

Figure 5.6.2Annual Sedim

ent Transport

Cagayan R

iver

0 5 10 15 20 25 30

0 5 10 15 20 25 30C

hico River

0 5 10 15 20 25 30

Siffu River

Ilagan River

Magat R

iver

5.626.34

4.995.48

7.79

5.535.01

4.43

6.87

22.89

11.04

6.41

3.990.90

0.850.10

0.260.90

Annual Bed M

aterial Load

Annual W

ash Load

Average A

nnual Bed M

aterial Load

Average A

nnual Wash Load

Legend



Figure 5.7.1General Work Flow of Riverbed FluctuationAnalysis

Evaluation of the Stability of thePresent River Stretch

River Cross Sectionand Profile DataMeasured in 2000

Note Case-0 : Natural Condition (without project implementation) Case-1 : Widening Tupang Site to 500 m Case-2 : Widening Tupang and Nassiping Sites to 500 m Case-3 : Widening Tupang, Nassiping and Magapit Sites to 500 m Case-4 : Widening Tupang, Nassiping and Magapit Sites to 700 m Case-5 : Construction of 3 Cut-off Channels (Gabut, San Isidro and Tuguegarao)

10-day RunoffData

10-day WaterLevel Data atAparri

Grain SizeDistribution DataMeasured in 2000

Long Term RiverbedFluctuation Analysis forNatural Condition (Case-0)*

Short Term RiverbedFluctuation Analysis forNatural Condition (Case-0)*

Flood RunoffData (2-yr)

Water LevelData at Aparri

Grain SizeDistribution DataMeasured in 2000

Long Term Riverbed Fluctuation Analysisfor Each Implementation Case (Case-1 ~Case-5)*

Evaluation of the Influence on theFuture Riverbed Fluctuation byEach Implementation Scheme

10-day RunoffData

10-day WaterLevel Data atAparri

River Cross Section andProfile Data for 5Implementation Scheme



Figure 5.7.2Result of Short-term Riverbed FluctuationAnalysis for Natural Condition (Case-0)

-0.4

-0.3

-0.2

-0.1

0.0

0.1

0.2

0.3

0.4

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180

Distance from the River Mouth (km)

(1) Flood Hydrograph for Objective Stretch (2 yr Probable Flood)

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

0 24 48 72 96 120 144 168 192 216

Time (hour)

Peak : 6,400 m3/sec

(2) Riverbed Change

Riverbed in the Year 2000

Riverbed Change

Riverbed ElevationMeasured in 2000Estimated RiverbedElevation-2.4 m ('00)

-2.6 m (After 5 yrs.)

-1.1 m ('00)


7.2 m ('00)

7.2 m (After 5 yrs.)

13.2 m ('00)13.4 m (After 5 yrs.)

-4

-2

0

2

4

6

8

10

12

14

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180


-4

-2

0

2

4

6

8

10

12

14

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180


Riverbed ElevationMeasured in 2000Estimated RiverbedElevation-2.4 m ('00) -1.1 m ('00)

7.2 m ('00)

13.2 m ('00)





-4

-2

0

2

4

6

8

10

12

14

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180


-2.4 m ('00) -1.1 m ('00)

7.2 m ('00)

13.2 m ('00)

Riverbed ElevationMeasured in 2000Estimated RiverbedElevation





-4

-2

0

2

4

6

8

10

12

14

0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180


Riverbed ElevationMeasured in 2000Estimated RiverbedElevation-2.4 m ('00) -1.1 m ('00)

7.2 m ('00)

13.2 m ('00)





After 5 Years

After 10 Years

After 25 Years

After 50 Years



Figure 5.8.1General Flowchart of Saline WaterIntrusion Analysis

Results of Lowflow Analysis

Target Runoff (Qt)

River Profile and Cross-section Survey Result in2000

Average Current Velocity ofFresh Water (U0) for theTarget Runoff

Estimated Length and Shapeof the Wedge for the TargetRunoff

Basic Equations

Estimation ofAffected Stretch forthe Target Runoff

Non-uniform flowCalculation

Calculation of theLength and the

Shape of the Wedge

-30

-20

-10

0

10

0 10 20 30 40 50 60

QQminQ95Qd_5yr

Q75Q50

Qob

Deepest Riverbed


Ordinary W.L.Tide Level= 0.71 m

Calculated salt water wedgeCalculated salt water wedge incase of no topographical barrier

Symbol m3/sec Description1 Qmin 137 Minimum 10-day runoff simulated from rainfall record (1963~1998)2 Qd_5yr 173 5-yr probable drought runoff (10-day)3 Q95 207 95% dependable 10-day runoff4 Q75 416 75% dependable 10-day runoff5 Q50 949 50% dependable 10-day runoff6 Qob 1,606 Observed runoff in this Study (Jan. 10~11, 2001)

figure 3.1.1 project location for 1987 master planopen_jicareport.jica.go.jp/pdf/11871183_04.pdf ·...

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