II NN DD EE XX MM AA PP :: DETAILED LANDSLIDE AND FLOOD HAZARD MAP OF 126°15'0"E 126°20'0"E 4217-IV-20 4217-I-16 4217-I-17 BISLIG CITY AND HINATUAN, SURIGAO DEL SUR; AND ROSARIO ROSARIO AND BUNAWAN, AGUSAN DEL SUR, PHILIPPINES HINATUAN 4217-IV-25 4217-I-21 4217-I-22 BISLIG CITY 4217-I-21 MAHARLIKA QUADRANGLE BUNAWAN 8°15'0"N 126°15'0"E 126°16'0"E 126°17'0"E 126°18'0"E 8°15'0"N 4217-III-5 4217-II-1 4217-II-2 TRENTO 126°15'0"E 126°20'0"E 8°18'0"N 8°18'0"N Purok X Tandawan (Loyola)# 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 G San Vicente National High School Municipal boundary Church (San nVicente) Centro Day Care Center 80 Contour (meter) Proposed relocation site Purok III Centro (San Vicente) (San Vicente)# nP SAN VICENTE Purok IV Paclap San Vicente Elementary School Landslide (San Vicente) (San nVicente) # 8°17'0"N 8°17'0"N Very high landslide susceptibility Purok VII Bingcongan Purok II Tandawan (Bigaan)# (San Vicente)# Bingcongan Integrated School Areas usually with steep to very steep slopes and underlain by n (Bigaan) 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. Low landslide susceptibility Gently sloping areas with no identified landslide. San Rafael Purok III (Maharlika)# Debris flow / Possible accumulation zone Mantaban Day Care Center Purok I Mantaban Areas that could be affected by landslide debris. (San Vicente) n (San nVicente)# Mantaban Elementary School (San Vicente) Active landslide >>>D Creep Purok IV Mandakit (Santa# Cruz) Inactive landslide Tension crack Landslide area with mitigating measure HHHGully Puerto Purok II (Maharlika)# ///Rock fall/Rock slide prone area Riverbank erosion Old landslide deposits 8°16'0"N 8°16'0"N Recent landslide deposits Areas susceptible to ground subsidence/sinkhole development Flood Very high flood susceptibility Areas likely to experience flood heights of greater than Puerto Purok I 2 meters and/or flood duration of more than 3 days. (Maharlika)# n These areas are immediately flooded during heavy rains Puerto Primary School (Maharlika) of several hours; include landforms of topographic lows Purok III such as active river channels, abandoned river channels (Santa# Cruz)SANTAP CRUZ and area along river banks; also prone to flashfloods. Healthnv® Center Puerto Purok III (Maharlika) Sta. Cruz Day Care Center # (Santan Cruz) High flood susceptibility Purok II Purok I (Santa# Cruz)(Santa# Cruz) Areas likely to experience flood heights of greater than 1 up to n 2 meters and/or flood duration of more than 3 days. Sta. Cruz National High School These areas are immediately flooded during heavy rains (Santa Cruz) 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 District II Purok III Areas likely to experience flood heights of greater than 0.5m up to Puerto Purok IV (Maharlika)# 1 meter and/or flood duration of 1 to 3 days. These (Maharlika)# District II Purok I areas are subject to widespread inundation during prolonged and (Maharlika)# Sanyata Purok I extensive heavy rainfall or extreme weather condition. Fluvial terraces, (San #Roque) alluvial fans, and infilled valleys are areas moderately subjected to flooding. 8°15'0"N 8°15'0"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 Direction of ! Mapping scale 1:10,000 Flashflood exit point ? % ALL RIGHTS RESERVED GIS Processing : receding floodwater PUBLISHED DECEMBER 2015 Lands Geological Survey Division.