Detailed Landslide and Flood Hazard Map of Tagbina And

II NN DD EE XX MM AA PP :: DETAILED LANDSLIDE AND FLOOD HAZARD MAP OF 126°15'0"E 126°20'0"E TAGBINA AND HINATUAN, SURIGAO DEL SUR; AND 4217-IV-5 4217-I-1 4217-I-2

ROSARIO, AGUSAN DEL SUR, PHILIPPINES TAGBINA 4217-IV-10 4217-I-6 HINATUAN 4217-I-7 8°25'0"N 4217-I-6 SANTA MARIA QUADRANGLE 8°25'0"N 126°15'0"E 126°16'0"E 126°17'0"E 126°18'0"E 4217-IV-15 4217-I-11 4217-I-12

ROSARIO

126°15'0"E 126°20'0"E 8°27'0"N 8°27'0"N

Purok IV Relocation Site (Kahayagan)# 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)

Track; trail n School

River v® Hospital

Municipal boundary G Church

80 Contour (meter) Proposed relocation site

Landslide 8°26'0"N

8°26'0"N 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.

Purok V Mayahon Low landslide susceptibility (Pocto)# Purok II Gently sloping areas with no identified landslide. (Pocto)# #Purok VIII Purok VII Manampiring Purok I (Pocto) (Pocto)# Debris flow / Possible accumulation zone (Pocto)# Purok IX P$(Pocto)# POCTO Pocto Barangay Hall Areas that could be affected by landslide debris. (Pocto) Pocto Elementary School n (Pocto) Active landslide >>>D Creep

Purok VI Lanacan Inactive landslide Tension crack (Roxas)# Landslide area with mitigating measure HHHGully

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

Purok III Old landslide deposits (Roxas)# Purok II 8°25'0"N (Roxas) nPurok X Bantilis 8°25'0"N # Roxas Daycare Center Mahayahay Primary School (Pocto)# Recent landslide deposits ROXAS Purok IV (Roxas) (Pocto) P (Roxas)# n

Roxas Elem. School Areas susceptible to ground subsidence/sinkhole development (Roxas)n

Purok VI Mahayahay (Pocto)# 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 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 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 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. 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 Purok I Cabayugan (Roxas)# extensive heavy rainfall or extreme weather condition. Fluvial terraces, alluvial fans, and infilled valleys are areas moderately subjected to flooding. 8°24'0"N 8°24'0"N 126°15'0"E 126°16'0"E 126°17'0"E 126°18'0"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