Detailed Landslide and Flood Hazard Map of Placer And

II NN DD EE XX MM AA PP :: 125°35'0"E 125°40'0"E

TA GA NA -A N

4120-III-7 4120-III-8 4120-III-9 9°40'0"N DETAILED LANDSLIDE AND FLOOD HAZARD MAP OF 9°40'0"N PLACER AND BACUAG, SURIGAO DEL NORTE, PHILIPPINES PLACER 4120-III-13 PANANAYAN QUADRANGLE 4120-III-12 4120-III-13 4120-III-14

125°36'0"E 125°37'0"E 125°38'0"E 125°39'0"E 4120-III-17 4120-III-18 GIGAQUIT BACUAG 9°35'0"N

9°35'0"N 4120-III-19 TUBOD

125°35'0"E 125°40'0"E 9°39'0"N 9°39'0"N μ 0120.5

Kilometers

LL E G E N D : Main road POBLACIONP! Barangay center location

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

0 2 Track; trail n School

River v® Hospital

4 Municipal boundary G Church

60 80 Contour (meter) Proposed relocation site

Purok I (Panhutongan)# HINATUAN PASSAGE Landslide #PANHUTONGAN Purok II P

(Panhutongan) 9°38'0"N 9°38'0"N Very high landslide susceptibility Purok III (Panhutongan)# Areas usually with steep to very steep slopes and underlain by

2 weak materials. Recent landslides, escarpments and tension

0 cracks are present. Human initiated effects could be an aggravating factor.

2 0 High landslide susceptibility Areas usually with steep to very steep slopes and underlain by weak materials. Areas with numerous old/inactive landslides.

Purok I Moderate landslide susceptibility (Tagbongabong)# P Purok II (Tagbongabong)# 20 Areas with moderately steep slopes. Soil creep and other TAGBONGABONG Purok IV n (Tagbongabong)## indications of possible landslide occurrence are present. Purok III (Tagbongabong) Low landslide susceptibility Purok I Burgos (Pananay-an)# (Poblacion)# Gently sloping areas with no identified landslide.

Debris flow / Possible accumulation zone Areas that could be affected by landslide debris.

Active landslide >>>D Creep Mabini (Poblacion) # 40 Inactive landslide Tension crack Purok III 2 0 Purok II (Pananay-an)# HHH (Pananay-an)nPananay-an Elementary School Landslide area with mitigating measure Gully 0 # 6 Pananay-an High School P (Pananay-an) 0 4 (Pananay-an) PANANAY-AN n ///Rock fall/Rock slide prone area Riverbank erosion 80 Old landslide deposits 9°37'0"N 60 9°37'0"N Recent landslide deposits

80 Areas susceptible to ground subsidence/sinkhole development

80 Dagohoy

120 n (Poblacion)# Flood

0 0 Very high flood susceptibility 1 40

0 4 Del Pilar Areas likely to experience flood heights of greater than 1 (Poblacion)n# Osmeaa 2 meters and/or flood duration of more than 3 days. (Poblacion) Garcia # These areas are immediately flooded during heavy rains 4 0 (Poblacion)# Tandang Sora (Poblacion) of several hours; include landforms of topographic lows 0 Bacuag Central Elementary School

6 # 1 0 (Poblacion) 16 n such as active river channels, abandoned river channels 140 Aguinaldo and area along river banks; also prone to flashfloods.

0 (Poblacion)

1 2 6 # 0 1 Estrada (Poblacion)

0 #

0 High flood susceptibility

0 0 Areas likely to experience flood heights of greater than 1 up to 6 Laurel 1 2 meters and/or flood duration of more than 3 days. 2 (Poblacion) 0 # These areas are immediately flooded during heavy rains of several hours; include landforms of topographic lows Bonifacio 0 POBLACION

0 1 (Poblacion)#P such as active river channels, abandoned river channels and area along river banks; also prone to flashfloods.

100 Moderate flood susceptibility 260

0 Areas likely to experience flood heights of greater than 0.5m up to 240 8 2 4 0 1 meter and/or flood duration of 1 to 3 days. These 140

0 22 areas are subject to widespread inundation during prolonged and 6

0 2 140 2 0

0 1 extensive heavy rainfall or extreme weather condition. Fluvial terraces, 2 6 6 20 0 0 1 26 0 alluvial fans, and infilled valleys are areas moderately subjected to flooding. 9°36'0"N 9°36'0"N 125°36'0"E 125°37'0"E 125°38'0"E 125°39'0"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