Detailed Landslide and Flood Hazard Map of Esperanza and Bayugan, Agusan Del

II NN DD EE XX MM AA PP :: DETAILED LANDSLIDE AND FLOOD HAZARD MAP OF 125°40'0"E 125°45'0"E

LAS NIEVES 4118-III-4 4118-III-5 4118-III-3 ESPERANZA AND BAYUGAN, AGUSAN DEL SUR; BAYUGAN AND LAS NIEVES, AGUSAN DEL NORTE, PHILIPPINES 4118-III-8 4118-III-9 4118-III-10 8°40'0"N 8°40'0"N 4118-III-9 CATMONONQUADRANGLE ESPERANZA

125°39'0"E 125°40'0"E 125°41'0"E 125°42'0"E 4118-III-13 4118-III-14 4118-III-15

125°40'0"E #Purok I 8°42'0"N 8°42'0"N (San# Isidro) Purok II PSAN ISIDRO (San Isidro)# # Purok IV Purok VIII (San Isidro) (Mahagcot)# μ Purok IV 0120.5 (Cubo)#

Purok III Kilometers (Cubo)n# CUBO P Purok VII Purok II Purok V (Mahagcot)# (Cubo)# (Cubo)# Purok VI (Bentahon)# LL E G E N D : Main road POBLACIONP! Barangay center location

So. Magaling (Poblacion) Imelda Elementary School Secondary road # Purok/Sitio location (Barangay) Purok VI n(Mahagcot) (Mahagcot) Purok IV # Track; trail n School (Bentahon)# River v® Hospital Purok I Purok IC Purok IA MAHAGCOT (Bentahon) (Mahagcot) Purok V P (Bentahon) # BENTAHON Purok I # (Mahagcot) # P (Bentahon) # Municipal boundary G Church n # # Bentahon Elementary School Purok IB Purok II Purok III Purok IV (Bentahon) (Bentahon) (Mahagcot) 80 Contour (meter) Proposed relocation site (Bentahon)# (Bentahon)# #

Landslide Purok III (Mahagcot)# 8°41'0"N

8°41'0"N Very high landslide susceptibility Areas usually with steep to very steep slopes and underlain by Purok II (Mahagcot)# weak materials. Recent landslides, escarpments and tension cracks are present. Human initiated effects could be an aggravating factor. Purok XI (Poblacion)# High landslide susceptibility Areas usually with steep to very steep slopes and underlain by

Purok V weak materials. Areas with numerous old/inactive landslides. (Bentahon)# Moderate landslide susceptibility Areas with moderately steep slopes. Soil creep and other indications of possible landslide occurrence are present. CROSSINGP LUNA Purok I Purok XII Purok III (Crossing Luna) (Poblacion) # Low landslide susceptibility # (Crossing Luna)# # Purok II (Crossing Luna) Gently sloping areas with no identified landslide. Purok VIII # (Crossing Luna) Purok IX (Crossing# Luna) Debris flow / Possible accumulation zone

Purok III Areas that could be affected by landslide debris. (Dakutan)# Purok VII Purok IV (Cubo)# (Crossing# Luna) Active landslide >>>D Creep

Purok I (Piglawigan)# Inactive landslide Tension crack Purok XV (Poblacion)# Purok V Landslide area with mitigating measure HHHGully (Crossing Luna) PIGLAWIGANP # Purok V /// Riverbank erosion (Piglawigan)# DAKUTAN Rock fall/Rock slide prone area P Purok I Purok II Dakutan Elementary School #(Dakutan) (Piglawigan)# (Dakutan)n Purok II Old landslide deposits (Cubo) 8°40'0"N

8°40'0"N # Purok VI Purok IV (Crossing# Luna) Recent landslide deposits (Dakutan)# 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 Purok VII (Piglawigan) of several hours; include landforms of topographic lows # such as active river channels, abandoned river channels and area along river banks; also prone to flashfloods.

High flood susceptibility Purok VIII (Piglawigan) Purok VIII # (Cubo) Purok IX # (Cubo) 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 Purok VIII (Nato)# of several hours; include landforms of topographic lows such as active river channels, abandoned river channels and area along river banks; also prone to flashfloods. Purok V (Dakutan) # 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 subjected to flooding. 8°39'0"N 8°39'0"N 125°39'0"E 125°40'0"E 125°41'0"E 125°42'0"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