Detailed Landslide and Flood Hazard Map of Sibagat And

II NN DD EE XX MM AA PP :: 125°40'0"E 125°45'0"E

DETAILED LANDSLIDE AND FLOOD HAZARD MAP OF 4118-IV-14 4118-IV-15 4118-I-11 AN CITY (Capital)

SIBAGAT AND BAYUGAN, AGUSAN DEL SUR, PHILIPPINES SIBAGAT 8°50'0"N 4118-IV-20 KIOYA QUADRANGLE 8°50'0"N 4118-IV-19 4118-IV-20 4118-I-16

BAYUGAN

125°42'0"E 125°43'0"E 125°44'0"E 125°45'0"E 4118-IV-24 4118-IV-25 4118-I-21

NIEVES

125°40'0"E 125°45'0"E 8°51'0"N Purok II

8°51'0"N 0 (Del Rosario)# 56

280 6 00

0 6 620 2 2 64 3 0

0 3 μ 0120.5

680 Kilometers

6 6 720 0

7 0 0 480 0 4 460 6 L E G E N D : 2 L E G E N D : 2 8 0 0 0 Purok V POBLACION 2 5 Barangay center location 8 Main road (Villangit) 00 ! # 0 P So. Magaling Secondary road (Poblacion)# Purok/Sitio location (Barangay)

180 Track; trail n School

52 0 0 6 2 River v® Hospital

0 4 2 0 6 3 G Church 220 80 Municipal boundary

80 Contour (meter) Proposed relocation site

0 0 400

0 120 Landslide Purok XV

6 (Poblacion) 8 0

# 8°50'0"N

8°50'0"N 6

0 7

0 Very high landslide susceptibility 0 2 0 7 300 Areas usually with steep to very steep slopes and underlain by weak materials. Recent landslides, escarpments and tension

4 2 0 cracks are present. Human initiated effects could be an 60 240 720 aggravating factor.

2 2 8 60 0 High landslide susceptibility

8 0 Purok III 0 KIOYA 64 Areas usually with steep to very steep slopes and underlain by P (Kioya) 320 # weak materials. Areas with numerous old/inactive landslides. 54 1 0 60 Purok VII Moderate landslide susceptibility (Kioya)# Kioya Elementary School Areas with moderately steep slopes. Soil creep and other Purok I 40 (Kioya) 1 n (Kioya) indications of possible landslide occurrence are present. # Purok IV 120 0 22 (Kioya)# Purok II Low landslide susceptibility (Kioya)#

4 Gently sloping areas with no identified landslide.

6 160 Purok VIII (Tag-uyango)# Debris flow / Possible accumulation zone

0 8 1 0 40 72 3 Purok VI Areas that could be affected by landslide debris. (Kioya)#

40 >>>D Purok I 0 7 Active landslide Creep Purok II 44 (Tag-uyango)P 500 760 # (Tag-uyango) # 0 TAG-UYANGO 0 7 Inactive landslide Tension crack

Purok III Landslide area with mitigating measure HHHGully (Tag-uyango)# 620

0 0 0 7 8 6 ///Rock fall/Rock slide prone area Riverbank erosion

Purok IV 340 (Tag-uyango)# Old landslide deposits 8°49'0"N 8°49'0"N

0 Recent landslide deposits 6 6 Areas susceptible to ground subsidence/sinkhole development

Flood 0 0 6

Very high flood susceptibility Areas likely to experience flood heights of greater than 140 2 meters and/or flood duration of more than 3 days. 0 24 These areas are immediately flooded during heavy rains

0 8 3 of several hours; include landforms of topographic lows such as active river channels, abandoned river channels

0 1 6 8 0 and area along river banks; also prone to flashfloods. # 180 Purok IV (San Vicente) 0 0 8 High flood susceptibility Purok V 4 (San Vicente)# Areas likely to experience flood heights of greater than 1 up to 2 meters and/or flood duration of more than 3 days.

5 2

0 These areas are immediately flooded during heavy rains 0 0 14 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 III 1 2 60 Moderate flood susceptibility 0 3 (Wawa) 1 # 4 0 0 20 Purok IV Areas likely to experience flood heights of greater than 0.5m up to (Wawa) # 3 60 1 meter and/or flood duration of 1 to 3 days. These areas are subject to widespread inundation during prolonged and 0 2 0 1 4 5 extensive heavy rainfall or extreme weather condition. Fluvial terraces, 0 0 520 4 alluvial fans, and infilled valleys are areas moderately subjected to flooding. 8°48'0"N 8°48'0"N 125°42'0"E 125°43'0"E 125°44'0"E 125°45'0"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