BRIEF ASSESSMENT OF CAGAYAN DE ORO

RIVER BASIN

Presentation Outline

• Basic Information of Cagayan de Oro River Basin

Thematic maps

Rainfall Information

• Major Flooding

2009 (Action taken)

2011 (Action taken)

• Recommendations/Action Plan

Tumalaong river

Bubunawan river

137,933.77 HAS.

CAGAYAN DE ORO RIVER BASIN

The existing rivers and creeks

which are tributaries of

Cagayan de Oro River that

flows and discharges into

Macajalar Bay is named as

CAGAYAN DE ORO RIVER

BASIN with a total land area

of 137,933.77 hectares

Cagayan de Oro River Basin Political Map &

Drainage System

Location Map

Baungon23,971.56

Libona8,130.33

Cagayan de Oro10,365.73

Iligan City15,678.39

Talakag79,484.28

Bubong244.91 Pangantucan

58.82

The entire Basin has 8 major rivers,

within the 7 municipalities : Talakag,

Baungon, Libona, and Pangantucan of

Bukidnon; Iligan City of Lanao del

Norte; Municipality of Bubong of Lanao

del Sur,ARMM; and Cagayan de Oro

City, which are composed with 122

barangays

Bubunawan, Cagayan de Oro Rivers (26,875.89 has.)

Tumalaong, Samalawan Rivers (13,352.12 has.)

Tagiti River (9,255.24 has.)

Kalawaig, Tutoban, Minontay Rivers (19,382.66 has. )

Batang, Banongcol, Baylanan, Sangaya, Sagayan Rivers

(31,598.07 has.)

Tikalaan, Picalin Rivers (7,527.20 has.)

Pigcotin, Bulaong Rivers (24,438.30 has.)

Munigui River (5,504.29 has.)

Rivers, Creeks, Road & Barangay Map

8 SUBWATERSHEDS OF CDO RIVER BASIN

Sub-Watersheds LocationSub -Watershed

Area

Length of Rivers &

Tributaries (Km)

Timberland Area

within Sub-

watershed

1. Bubunawan,

Cagayan Rivers

Cagayan de oro ,

MisOr, Libona &

Baungon, Bukidnon 26,875.89 71.93 / 194.27 12,217.93

2. Tumalaong,

Samalawan Rivers

Baungon, Bukidnon

13,352.12 45.71 / 112.48 6,283.89

3. Tagiti River Baungon, Bukidnon 9,255.24 38.06 / 61.365 5,799.81

4. Kalawaig, Tutoban,

Minontay Rivers

Baungon & Talakag,

Bukidnon 19,382.66 84.78 / 109.30 11,483.87

5. Batang, Banongcol,

Baylanan, Sangaya,

Sagayan Rivers

Talakag, Pangantucan

Bukidnon31,598.07 109.86 / 152.91 17,606.67

6. Tikalaan, Picalin

Rivers

Talakag, Bukidnon

7,527.20 60.57 / 16.98 3,094.07

7. Pigcotin, Bulaong

Rivers

Talakag Buk; CDO;

Bubong,LDS; Iligan,

LDN 24,438.30 69.62 / 92.28 20,334.99

8. Munigi River Cagayan de Oro City5,504.29 32.13 / 14.27 2,165.96

CAGAYAN DE ORO

RIVER BASIN TOTAL 137,933.77 512.67 / 753.84 78,987.19

Sub -Watershed Areas of Cagayan de Oro River Basin

The river basin has great social physical

economic and environmental significance and

potentials as it is a source of water for

domestic industrial, irrigation and for hydro

electric power generation. It likewise is

endowed with important biodiversity as it still

has a closed forest of about 18,812.40

hectares

CLASS SYMBOL AREA

Closed forest, broadleaved NF4F 18,812.40

Forest plantation, broadleaved FPB 80.58

Inland water IW 242.62

Mangrove forest NFM 68.37

Open forest, broadleaved NF2B 19,218.28

Other land, built-up area BUA 2,260.36

Other land, cultivated, annual crop AC 23,783.39

Other land, cultivated, perennial crop PC 7,155.00

Other land, natural, grassland GL 16,756.83

Other wooded land, shrubs Sh 33,965.39

Other wooded land, wooded grassland WGL 15,590.55

TOTAL AREA in Has. 137,933.77

Vegetative/Land Cover

Map

Mt. KitangladRange Natural

Park

Mt. Kalatungan

Range Natural Park

as of 8.am., Dec. 17, 2011

Isla de Oro

Isla Baksan

Isla Delta 1

Isla Delta 2

Isla Bugnao

Isla de Oro

Macajalar Bay

Cagayan de Oro River

Iponan River

Rainfall:

180.9 mm in Cagayan de Oro City for 24-hr readingfrom Dec. 16, 8AM to Dec. 17, 8AM, 2011 per PAG-ASA station.

470 mm per DMPI Capihan Rain Gauge station(Libona, Bukidnon) on same period.

Previous flooding occurred on January 11, 2009:

Lumbia Airport Station registered 88.8mm onJanuary 10, 2009 and 73.5mm on January 11, 2009.Rain Gauge Station located at the City propermeasured 89.4mm and 132.8mm respectively forthe same period.

Reported Flood-Affected Areasin Cagayan de Oro City December 17, 2011

• Brgys. Lapasan, Cugman, Carmen, Tablon,Kauswagan, Macasandig, Balulang, Agusan,Baikingon, Brgy. 10 (Isla de Oro), Pagatpat,Iponan, Bulua, Canitoan, Puntod, Macabalan,Consolacion, Bugo, Brgys. 13 and 14 (IslaBugnaw), Brgy. 15, Brgy. 6 and 7, Brgy. 11,Balubal, Patag and San Simon

REPORT ON RAPID FLOOD-HAZARD ASSESSMENT OFTHE AFFECTED AREAS IN CAGAYAN DE ORO CITYAND OTHER PARTS OF MISAMIS ORIENTAL RE:JANUARY 11, 2009 FLOOD EVENT

Lumbia Airport Station registered 88.8mm on January 10, 2009 and 73.5mm on January 11, 2009. Rain Gauge Station located at the City proper measured 89.4mm and 132.8mm respectively for the same period.

Affected Barangays are Balulang, Bulua, Bugo,Camaman-an, Canitoan, Carmen, Consolacion, Gusa,Iponan, Kauswagan, Lapasan, Macabalan, Macanhan,Macasandig, Pagatpat, Patag, Puntod, San Simon,Brgys., 13, 17, 18, 22, 23, 24, 26, 27, 34, 35 and 36.

Institutionalized the CDORBMC (November 2010) incoordination with the Archdiocese of Cagayan de OroCity;

Implementation of Upland Development Program(2009-2010);

National Greening Program (2011); Linis Estero (2005-2009); Adopt an Estero Program (2011); Supported the passage of the environment related

congressional bills filed by Congressman RufusRodriguez;

Characterized and assessed the BubunawanWatershed to flooding and landslide;

Provision of Geo-hazard Assessment Reports andmaps to all LGUs (2010); and

Development of Integrated Coastal ManagementPlan (ICMP) of Cagayan de Oro City (2011)

August 2010

• January 19, 2009

Denial of the request

LGU Cagayan de Oro

City for the issuance of

Presidential

Proclamation declaring

and granting ownership

of some islets of

Cagayan de Oro River

under SP No. 7737-

2006, strictly prohibiting

settlements and

recommend relocation of

occupants to a safer site.

Created the Operation/Relief Assistance Center Distributed assistance financial and relief goods Donated fabricated 150 coffins to LGU CDO & IC Donated confiscated forest products (567.33 cu.m) to

DSWD-10 and 17,000 bd.ft. to DepEd-10 Attendance to meetings called by DSWD, OCD,

Cluster and Archbishop Rapid re-assessment of the identified relocation sites

at Canitoan (Sitio Calaanan), Lumbia and UpperGusa, Cagayan de Oro City

Created a “probe” team to conduct investigation

Activity Time Frame

Responsible Office/Groups

1. Strengthening of CDODRRMC

2. Intensive IEC campaign the identified flood prone areas based on the geo-hazard map

3. Installation of Telemetry Stations within the Cagayan de Oro river to measure the water level and water discharge

4. Implementation of NGP CY 2012 within the CDORB

5. Riverbank Rehabilitation ( along Cagayan de Oro river and its tributaries through planting of bamboos and other indigenous species)

6. Remaining watersheds within the CDORB should be characterized for biophysical and vulnerability assessment (Batang, Tumalaong, Tagiti, Pigcutin, Kalawaig, Pigculin and Monigue.

7. Prepare the CDORB Master Plan in coordination with RBCO

8. Pursue the passage of the environment related congressional bills filed by Congressman Rufus Rodriguez;

9. Construction of Flood Control structures (e.g. Dikes, etc.)

10. Provision of livelihood to affected barangays

Activity Time Frame

Responsible Office/Groups

11. Review of land uses upstream and downstream of Iponan River, including other major drainages in the region

12. Relocate communities located within the highly vulnerable areas, such as island bars, former channels and creeks and other critical areas near riverbank

13. Exert efforts to stop illegal hydraulic mining in the watershed of Iponan

14. Local engineering offices and DPWH-10 should check, verify all structures, such as dams, bridges, spillways, lateral drainages along major thoroughfares and establishment affected by flood in terms of foundation stability

15. Declog certain sections of the river channel and tributaries that were choked by debris brought by the floodwaters

16. Install warning systems downstream and strengthen/capacitate the Barangay Disaster Coordinating Councils.

Activity Time Frame

Responsible Office/Groups

17. Install rain gauges and flood level gauges (telemetry/ indigenous system) in the upstream in coordination with the PDCC’s of the nearby provinces of Bukidnon and Lanao del Sur

18. Encourage private companies with rain gauges stations to furnish PAGASA-10 their records/data gathered. A resolution to this effect has to be issued by the concerned RDCC/PDCC/MDCC where such weather monitoring equipment/tools have been established

19. Reactivate City Mining Regulatory Board (CMRB) to set forth the policies in the management of small-scale mining operations in Cagayan de Oro City viz-a-viz their social, environmental and economic obligations

Agency Contact Address

• Email address = r10@.gov.ph

• Tel. # = (088) 856-9066

• Fax # = (08822) 726280

Limketkai, Lapasan (Dec. 16, 9:49 PM)

Villa Candida, Zone 7, Bulua (Dec. 17, 8:00 AM)

Brgy. Canitoan (Dec. 17, 2011, 10 AM)

Bulao Bridge –boundary of Brgys. Iponan and Canitoan(Dec. 17, 11 AM)

Brgy. Iponan (Dec. 17, 11 AM)

Villa Candida Subd. Zone 7, Brgy. Bulua(Dec. 17, 12 PM)

Macasandig Rotunda (Dec. 17, 1 PM)

IECs CONDUCTED

• By the MGB-DENR Central Office IEC team to brgy. captains of Cagayan de Oro City on March 12, 2011

IECs CONDUCTED

• By the MGB-DENR 10 to brgy. captains of Cagayande Oro City at the Cagayan de Oro CouncilEnvironment Committee on Sept 27, 2011

ISLETS ALONG CAGAYAN DE ORO RIVER

•There are Five (5) unsurveyed Islets along Cagayan de Oro River namely: Isla de Oro (8.6 ha),Isla Delta 1 (1.3 ha), Isla Delta 2 (1.2 ha), Isla Bugnaw (1.4 ha), and Isla Bacsan (3.2 ha); with anapproximate total area of 15.7 hectares.•The City Council of Cagayan de Oro passed Resolution No. 7733-2006 dated January 30, 2006requesting a proclamation declaring and granting ownership of the islets in favor of the City tobe used for eco-tourism project and other public purpose with parallel requests of Isla DeltaLandless Association, Inc. (IDLAI).•On June 4, 2008, Regional Executive Director Maximo O. Dichoso, in a letter to Hon. ConstatinoJaraula, then Mayor of Cagayan de Oro City, denied the request on the ground that the Islets donot qualify for eco-tourism purposes.•On October 2, 2008, Regional Executive Director Maximo O. Dichoso in a letter toHon.Reynaldo Advincula, City Councilor and Chairman of the Committee on Subdivision andLanded Estate,again denied the request due to the nature of accretionary islets and its inherentinstability. Further, prior geo-scientific studies confirmed the active and dynamic nature of thisfluvial system and it would be prudent to avoid construction of houses near the river to avertpotential catastrophic events.•DENR Region 10 created a committee composed of representatives from all sectors of DENR toconduct a comprehensive assessment of the area per Regional Special Order No. 2008-486.•On January 19, 2009, the Committee submitted its report recommending to the CityGovernment of Cagayan de Oro entry of new inhabitants and construction of new units beSTRICTLY PROHIBITED and that existing residents be programmed for relocation to a safer site.The islets were recommended to be used as forest park.

• January 19, 2009

• September 2011