Site Investigation Works 1

Site Investigation Works Location Chainage Area of Failure

: S21 : CH 23+800 (From Ranau) : 150 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: Cracked & Depressed : OK : None : Settled (LHS) : None : There is continuous flow of water from earth road side drain on the right hand side of the road. Other possible cause of failure is embankment movement.

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Site Investigation Works Location Chainage Area of Failure

: S22 : CH 24+050 (From Ranau) : 1930 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: Edge Cracked & Collapsed (One lane available – RHS) : OK (RHS) : Hidden in the Bushes : Collapsed (LHS) : Collapsed (RHS) : There is continuous flow of water from uphill on the right hand side of the road to the embankment via a culvert across the road. Water from outlet of culvert discharged directly to the embankment surface, which might trigger landslip. Other possible cause of failure is embankment movement.

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Site Investigation Works Location Chainage Area of Failure

: S23 : CH 24+300 (From Ranau) : 159 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: Alligator Cracked, Depressed & Potholes : OK : Hidden in the Bushes : OK : OK : Pavement improperly drained penetrated the surface and road frequently used by heavy trucks.

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Site Investigation Works Location Chainage Area of Failure

: S24 : CH 24+660 (From Ranau) : 184 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: Cracked & Settled : Settled (LHS) : OK : Settled : OK : There is continuous flow of water from uphill on the right hand side of the road to the road side drain then to the embankment via a culvert across the road. Other possible cause of failure is embankment movement.

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Site Investigation Works Location Chainage Area of Failure

: S25 : CH 24+900 (From Ranau) : 628 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: Cracked & Settled : OK : None : Settled : OK : Pavement improperly drained penetrated the surface and road frequently used by heavy trucks. Other possible cause of failure is high embankment movement.

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Site Investigation Works Location Chainage Area of Failure

: S26 (New) : CH 25+050 (From Ranau) : 1450 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: OK : Collapsed (LHS) : None : Collapsed (LHS) : OK : Loose and soft soil in high embankment slope. No water encountered.

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Site Investigation Works Location Chainage Area of Failure

: S27 : CH 25+200 (From Ranau) : 3000 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: Cracked, Potholes & Settled : Settled & Collapsed : OK : Subsidence & Collapsed : OK : There is continuous flow of water from uphill on the right hand side of the road to the embankment via a culvert across the road and a river on the left hand side. Other possible cause of failure is embankment movement.

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Site Investigation Works Location Chainage Area of Failure

: S28 : CH 26+689 (From Ranau) : 430 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: Alligator Cracked & Potholes : OK : None : None : OK : Pavement improperly drained penetrated the surface and road frequently used by heavy trucks.

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Site Investigation Works Location Chainage Area of Failure

: S29 (New) : CH 27+200 (From Ranau) : 5000 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: Depressed & Settled : OK : OK : OK : Landslide, Mudflow & Earthflow : There is continuous flow of water from uphill on the left hand side of the road and a river on the right hand side. Other possible causes of failure are movement of unconsolidated material and coherent block of material.

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Site Investigation Works Location Chainage Area of Failure

: S30 : CH 27+450 (From Ranau) : 4800 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: OK : OK : None : Collapsed (RHS) : OK : River on the right hand side of high and steep embankment slope. Other possible cause of failure is embankment movement.

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Site Investigation Works Location Chainage Area of Failure

: S31 (New) : CH 28+000 (From Ranau) : 5120 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: Edge Cracked & Potholes : OK : OK : Collapsed : OK : There is continuous flow of water from uphill on the left hand side of the road to the embankment via a culvert across the road and a river on the right hand side. Other possible cause of failure is embankment movement.

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Site Investigation Works Location Chainage Area of Failure

: S32 : CH 28+275 (From Ranau) : 1395 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: Edge Cracked & Potholes : OK : OK : Collapsed : OK : There is continuous flow of water from uphill on the left hand side of the road to the embankment via a culvert across the road and a river on the right hand side. Other possible cause of failure is embankment movement.

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Site Investigation Works Location Chainage Area of Failure

: S33 : CH 29+010 (From Ranau) : 3430 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: Alligator Cracked : Collapsed (RHS) : None : Collapsed (RHS) : OK : There is continuous flow of water from uphill on the left hand side of the road. Other possible cause of failure is embankment movement.

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Site Investigation Works Location Chainage Area of Failure

: S34 : CH 29+220 (From Ranau) : 2102 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: Alligator Cracked & Potholes : OK : Collapsed together with Gabions (RHS) : Collapsed (RHS) : OK : There is continuous flow of water from uphill on the left hand side of the road to the embankment via a culvert across the road and on surface of the road. Other possible cause of failure is embankment movement.

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Site Investigation Works Location Chainage Area of Failure

: S35 : CH 29+330 (From Ranau) : 1350 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: OK : OK : None : Collapsed (RHS) : OK : There is continuous flow of water from uphill on the left hand side of the road. Other possible cause of failure is embankment movement.

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Site Investigation Works Location Chainage Area of Failure

: S36 : CH 29+460 (From Ranau) : 2130 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: Cracked & Settled : OK : None : Collapsed (RHS) : OK : The main cause of failure is embankment movement.

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Site Investigation Works Location Chainage Area of Failure

: S37 (New) : CH 29+750 (From Ranau) : 1530 sq. m

Brief Description of Road Failure Pavement Road Side Drain Culvert / Sump Embankment Slope Causes of Failure

: OK : OK : None : Collapsed (RHS) : OK : There is continuous flow of water from uphill on the left hand side of the road. Other possible cause of failure is embankment movement.

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