Detailed Landslide and Flood Hazard Map of Bunawan

II NN DD EE XX MM AA PP :: DETAILED LANDSLIDE AND FLOOD HAZARD MAP OF 125°55'0"E 126°0'0"E 4117-II-14 4117-II-15 BUNAWAN BUNAWAN, VERUELA, AND SANTA JOSEFA, 4217-III-11

TRENTO 8°5'0"N AGUSAN DEL SUR, PHILIPPINES 8°5'0"N VERUELA 4117-II-20 4217-III-16 4117-II-19 4117-II-20 SINOBONG QUADRANGLE SANTA JOSEFA 125°57'0"E 125°58'0"E 125°59'0"E 126°0'0"E 4117-II-24 4117-II-25 4217-III-21

125°55'0"E 126°0'0"E 8°6'0"N 8°6'0"N

Purok IIIC (Libertad)#

Antoquia (Kapatungan)# μ 0120.5

Kaisahan (Poblacion)# Kilometers

LL E G E N D : Purok V (Pag-asa)# Main road POBLACIONP! Barangay center location

So. Magaling Secondary road (Poblacion)# Purok/Sitio location (Barangay)

Track; trail n School

River v® Hospital Sinapawan (Poblacion)# Municipal boundary G Church

80 Contour (meter) Proposed relocation site

Landslide

Cabinuangan 8°5'0"N

8°5'0"N (Poblacion) # Very high landslide susceptibility Areas usually with steep to very steep slopes and underlain by weak materials. Recent landslides, escarpments and tension cracks are present. Human initiated effects could be an aggravating factor. High landslide susceptibility Areas usually with steep to very steep slopes and underlain by weak materials. Areas with numerous old/inactive landslides. Moderate landslide susceptibility Areas with moderately steep slopes. Soil creep and other indications of possible landslide occurrence are present.

Guinobatan Purok I (Poblacion)# Low landslide susceptibility (Poblacion)# Purok II Gently sloping areas with no identified landslide. (Poblacion)# # Purok III (Poblacion) Debris flow / Possible accumulation zone Purok IV (Poblacion)#P Areas that could be affected by landslide debris. POBLACION

Active landslide >>>D Creep Purok V (Poblacion)# Inactive landslide Tension crack

Landslide area with mitigating measure HHHGully

///Rock fall/Rock slide prone area Riverbank erosion

Old landslide deposits 8°4'0"N 8°4'0"N Recent landslide deposits v® Purok VI (Poblacion) # Purok VII (Poblacion)# Areas susceptible to ground subsidence/sinkhole development

Flood

Very high flood susceptibility Areas likely to experience flood heights of greater than 2 meters and/or flood duration of more than 3 days. These areas are immediately flooded during heavy rains

Limot of several hours; include landforms of topographic lows (Poblacion)# such as active river channels, abandoned river channels and area along river banks; also prone to flashfloods.

High flood susceptibility Purok VIII (Poblacion)# Areas likely to experience flood heights of greater than 1 up to 2 meters and/or flood duration of more than 3 days. These areas are immediately flooded during heavy rains

Candavao of several hours; include landforms of topographic lows (Poblacion)# such as active river channels, abandoned river channels and area along river banks; also prone to flashfloods. Moderate flood susceptibility Areas likely to experience flood heights of greater than 0.5m up to 1 meter and/or flood duration of 1 to 3 days. These areas are subject to widespread inundation during prolonged and extensive heavy rainfall or extreme weather condition. Fluvial terraces, alluvial fans, and infilled valleys are areas moderately

8°3'0"N subjected to flooding. 8°3'0"N 125°57'0"E 125°58'0"E 125°59'0"E 126°0'0"E Low flood susceptibility Areas likely to experience flood heights of 0.5 meter or less and/or flood duration of less than 1 day. These areas include Data Sources : Coordinate System : low hills and gentle slopes. They also have sparse to MGB Geohazard Assessment Team moderate drainage density. DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES Spheroid : ...... Clark 1866 Lands Geological Survey Division Projection : ...... Transverse Mercator Geosciences Division MGB Regional Office XIII MINES AND GEOSCIENCES BUREAU Datum : ...... Luzon 1911 Direction of 1.2 National Mapping and Resource Information Authority ? Flood depth (meter) North Avenue, Diliman, Quezon City ? rising floodwater