UNSEALED ROADS - Level 1 - Visual Inspection Report

• Road Name

• Road Chainage Location (Single Point CH or From CH / To CH)

• Inspection Location (Drop Pin)
  Address

• Inspection Date

  Date

• Inspected By

• Trafficable Road width (m)

• Road shoulder width (m)

• Road cross-fall type

  Select Normal Crowned Cross-fall (Raised Centerline) Reverse Crowned Cross-fall (Depressed Centerline) One-way Cross-fall (Slopes in One Direction) Varying Cross-fall (Hard to Distinguish)

  • Normal Crowned Cross-fall (Raised Centerline)
  • Reverse Crowned Cross-fall (Depressed Centerline)
  • One-way Cross-fall (Slopes in One Direction)
  • Varying Cross-fall (Hard to Distinguish)

• Road formation type

  Select Road in Embankment (Fill) Road In Bench Cut (Both sides in Cut) Side Hill Cut (Cut on one side and Fill the Other) Hard to Distinguish

  • Road in Embankment (Fill)
  • Road In Bench Cut (Both sides in Cut)
  • Side Hill Cut (Cut on one side and Fill the Other)
  • Hard to Distinguish

• Road Terrain Location

  Select Urban Terrain (Major Town or City) Coastal Terrain (Follows along the Coast Line) Rural Terrain (Inland / Village Connections)

  • Urban Terrain (Major Town or City)
  • Coastal Terrain (Follows along the Coast Line)
  • Rural Terrain (Inland / Village Connections)

• Road Terrain Type

  Flat Terrain

  Rolling Terrain

  Hilly Terrain

  Mountainous Steep Terrain

• General Comments

• Photos

  Media

• UNSEALED ROAD - Condition State - Severity Level Rating Descriptions

• 1= The UNSEALED ROAD is in Excellent Condition.
  
  INDICATORS:
  - No visible defects
  - Smooth surface
  - Good drainage
  - Minimal maintenance required

• 2= The item is in Good Condition. Minor defects present but do not significantly affect the road's performance.
  
  INDICATORS:
  - 0% < Area Affected < 5%,
  - Minor potholes
  - Slight gravel loss
  - Good drainage
  - Regular maintenance needed

• 3= The item is in Fair Condition. Noticeable defects that may affect driving comfort and safety.
  
  INDICATORS:
  - 5% < area affected < 10%
  -Moderate potholes
  -Some rutting
  -Minor erosion
  -Drainage issues
  -Frequent maintenance required

• 4= The item is in Poor Condition. Significant defects that impact road usability and safety.
  
  INDICATORS:
  - 10% < area affected < 20%
  - Large potholes
  - Severe rutting
  - Erosion
  - Inadequate drainage
  - Extensive maintenance required

• 5= The item is in Critical. Major defects making the road barely usable or unsafe.
  
  INDICATORS:
  - >20% area affected
  - Extensive potholes
  - Deep ruts
  - Severe erosion
  - Poor or no drainage
  - Immediate and extensive repairs needed

• For the UNSEALED ROAD section inspected, what is the main failure mechanisms identified?

  Select Loss of Fines Gravel Loss Loss of Shape or Road Profile Corrugations Potholes Rutting Scouring or Erosion (Drainage Flow over ROAD)

  • Loss of Fines
  • Gravel Loss
  • Loss of Shape or Road Profile
  • Corrugations
  • Potholes
  • Rutting
  • Scouring or Erosion (Drainage Flow over ROAD)

• What is the Length of Road Affected by LOSS of FINES (m)

• What is the Width of Road Affected by LOSS of FINES (m)

• What is the APPROXIMATE DEPTH OF BASE MATERIAL remaining due to LOSS of FINES (mm)

• What is the Condition Rating of the Affected Area for LOSS of FINES (Refer Inspection Manual)

• What rectification is required for LOSS of FINES?

  Select Re-Compaction Only (shape profile is sufficient) Regrading and Re-compaction (improve shape and reuse existing fines material) Re-gravelling and Re-compaction (import gravel material) Insitu Stabilize Gravel to increase resistance to drainage effects Dust Control to minimise loss of fines due to wind effects Improve drainage immunity of road Seal Road to increase resistance and lower maintenance requirements

  • Re-Compaction Only (shape profile is sufficient)
  • Regrading and Re-compaction (improve shape and reuse existing fines material)
  • Re-gravelling and Re-compaction (import gravel material)
  • Insitu Stabilize Gravel to increase resistance to drainage effects
  • Dust Control to minimise loss of fines due to wind effects
  • Improve drainage immunity of road
  • Seal Road to increase resistance and lower maintenance requirements

• What is the Length of Road Affected by GRAVEL LOSS (m)

• What is the Width of Road Affected by GRAVEL LOSS (m)

• What is the APPROXIMATE DEPTH OF BASE MATERIAL remaining due to GRAVEL LOSS (mm)

• What is the Condition Rating of the Affected Area for GRAVEL LOSS (Refer Inspection Manual)

• What rectification is required for GRAVEL LOSS?

  Select Re-Compaction Only (shape profile is sufficient) Regrading and Re-compaction (improve shape and reuse existing GRAVEL material) Re-gravelling and Re-compaction (import gravel material) Insitu Stabilize Gravel to increase resistance to drainage effects Improve drainage immunity of road Seal Road to increase resistance and lower maintenance requirements

  • Re-Compaction Only (shape profile is sufficient)
  • Regrading and Re-compaction (improve shape and reuse existing GRAVEL material)
  • Re-gravelling and Re-compaction (import gravel material)
  • Insitu Stabilize Gravel to increase resistance to drainage effects
  • Improve drainage immunity of road
  • Seal Road to increase resistance and lower maintenance requirements

• What is the Length of Road Affected by LOSS OF SHAPE (m)

• What is the Width of Road Affected by LOSS OF SHAPE (m)

• What is the APPROXIMATE DEPTH OF BASE MATERIAL remaining due to LOSS of SHAPE (mm)

• What is the Condition Rating of the Affected Area for LOSS OF SHAPE (Refer Inspection Manual)

• What rectification is required for LOSS OF SHAPE ?

  Select Re-Compaction Only (shape profile is sufficient) Regrading and Re-compaction (improve shape and reuse existing GRAVEL material) Re-gravelling and Re-compaction (import gravel material) Insitu Stabilize Gravel to increase resistance to drainage effects Improve drainage immunity of road Seal Road to increase resistance and lower maintenance requirements

  • Re-Compaction Only (shape profile is sufficient)
  • Regrading and Re-compaction (improve shape and reuse existing GRAVEL material)
  • Re-gravelling and Re-compaction (import gravel material)
  • Insitu Stabilize Gravel to increase resistance to drainage effects
  • Improve drainage immunity of road
  • Seal Road to increase resistance and lower maintenance requirements

• What is the Length of Road Affected by CORRUGATIONS (m)

• What is the Width of Road Affected by CORRUGATIONS (m)

• What is the APPROXIMATE DEPTH OF THE Road CORRUGATIONS (mm)

• What is the APPROXIMATE DEPTH OF BASE MATERIAL remaining due to CORRUGATIONS (mm)

• What is the Condition Rating of the Affected Area for CORRUGATIONS (Refer Inspection Manual)

• What rectification is required for CORRUGATIONS ?

  Select Re-Compaction Only (shape profile is sufficient) Regrading and Re-compaction (improve shape and reuse existing fines material) Re-gravelling and Re-compaction (import gravel material) Insitu Stabilize Gravel to increase resistance to drainage effects Dust Control to minimise loss of fines due to wind effects Improve drainage immunity of road Seal Road to increase resistance and lower maintenance requirements

  • Re-Compaction Only (shape profile is sufficient)
  • Regrading and Re-compaction (improve shape and reuse existing fines material)
  • Re-gravelling and Re-compaction (import gravel material)
  • Insitu Stabilize Gravel to increase resistance to drainage effects
  • Dust Control to minimise loss of fines due to wind effects
  • Improve drainage immunity of road
  • Seal Road to increase resistance and lower maintenance requirements

• What is the Length of Road Affected by POTHOLES (m)

• What is the Width of Road Affected by POTHOLES (m)

• What is the APPROXIMATE DEPTH of POTHOLES (mm)

• What is the APPROXIMATE DEPTH OF BASE MATERIAL remaining due to POTHOLES (mm)

• What is the Condition Rating of the Affected Area for POTHOLES (Refer Inspection Manual)

• What rectification is required for POTHOLES ?

  Select Localised Gravel Filling and Hand Temper Compaction Non-localised Gravel Filling and Compaction with Machinery Regrading and Compaction of Road Gravel with Machinery

  • Localised Gravel Filling and Hand Temper Compaction
  • Non-localised Gravel Filling and Compaction with Machinery
  • Regrading and Compaction of Road Gravel with Machinery

• What is the Length of Road Affected by RUTTING (m)

• What is the Width of Road Affected by RUTTING (m)

• What is the APPROXIMATE DEPTH of RUTTING (mm)

• What is the APPROXIMATE DEPTH OF BASE MATERIAL remaining due to RUTTING (mm)

• What is the Condition Rating of the Affected Area for RUTTING (Refer Inspection Manual)

• What rectification is required for RUTTING ?

  Select Localised Trimming/ Regrade and Re-compaction of Existing Gravel Regrading and Re-compaction with Imported Gravel Full Depth Excavation with Replacement of Gravel

  • Localised Trimming/ Regrade and Re-compaction of Existing Gravel
  • Regrading and Re-compaction with Imported Gravel
  • Full Depth Excavation with Replacement of Gravel

• What is the Length of Road Affected by SCOUR & EROSION (m)

• What is the Width of Road Affected by SCOUR & EROSION (m)

• What is the APPROXIMATE DEPTH of SCOUR & EROSION (mm)

• What is the APPROXIMATE DEPTH OF BASE MATERIAL remaining due to SCOUR & EROSION (mm)

• What is the Condition Rating of the Affected Area for SCOUR & EROSION (Refer Inspection Manual)

• What rectification is required for SCOUR & EROSION ?

  Select Localised filling and re-compaction with imported gravel Regrading and roadside drainage improvements Full Reconstruction with roadside drainage and erosion control improvements

  • Localised filling and re-compaction with imported gravel
  • Regrading and roadside drainage improvements
  • Full Reconstruction with roadside drainage and erosion control improvements

• UNSEALED ROAD - Vulnerability State - Rating Descriptions

• 1= NOT VULNERABLE - Description: The gravel road shows strong resilience to climatic impacts. It remains accessible and safe with minimal maintenance, supporting economic activities without significant issues.
  
  INDICATORS:
  - Roads accessible during extreme weather.
  - Minimal impact on local businesses.
  - No significant safety concerns or accidents.
  - Robust infrastructure requiring minimal maintenance.

• 2=SLIGHTLY VULNERABLE - Description: Minor vulnerabilities exist but are effectively managed, causing minimal long-term impact.
  
  INDICATORS:
  - Rare road inaccessibility, quickly resolved.
  - Minor disruptions to businesses and transport.
  - Few safety concerns with occasional accidents.
  - Infrastructure shows minor wear, remains functional with regular maintenance.

• 3= MODERATLEY VULNERABLE - Description: Moderate impacts with regular disruptions affecting accessibility and economic activities.
  
  INDICATORS:
  - Periodic road inaccessibility affecting access to essential services.
  - Noticeable impact on businesses and tourism, increased costs for goods transportation.
  - Some safety concerns and moderate accidents.
  - Infrastructure shows stress, requiring frequent maintenance.

• 4= VULNERABLE - Description: Significant impacts with frequent and severe disruptions affecting communities and economic activities.
  
  INDICATORS:
  - Regular road inaccessibility isolating communities during extreme weather.
  - Significant disruptions to businesses, tourism, and agricultural transport.
  - Frequent safety concerns and higher accident rates.
  - Damaged infrastructure requiring extensive and ongoing repairs.

• 5 = VERY VULNERABLE - Description: Highly vulnerable with constant and severe disruptions critically affecting daily life and economic stability.
  
  INDICATORS:
  - Chronic road inaccessibility leading to long-term community isolation.
  - Major and continuous business disruptions with severe economic losses.
  - Persistent safety hazards with a high rate of accidents and injuries.
  - Poor infrastructure condition with widespread severe damage requiring immediate attention.

UNSEALED ROAD - Vulnerability Assessment

• Increased Flooding and Rainfall Intensity: Samoa's location in the Pacific exposes it to frequent tropical storms and cyclones, which are expected to increase in intensity due to climate change. The increased rainfall can lead to higher water volumes that UNSEALED ROADS might not be designed to handle, potentially causing overtopping or structural failure.

• Is the road accessible during extreme weather events?

  Select Not Accessible extreme risk to public safety Accessible with some Risk to Public Safety Accessible during extreme weather events

  • Not Accessible extreme risk to public safety
  • Accessible with some Risk to Public Safety
  • Accessible during extreme weather events

• How does heavy rainfall affect the road's general condition and usability?

  Select No affect - Good Drainage - Road Operates Well Some Affect - Moderate Drainage - Minor Maintenance Large Affect - Poor Drainage - Major Maintenance

  • No affect - Good Drainage - Road Operates Well
  • Some Affect - Moderate Drainage - Minor Maintenance
  • Large Affect - Poor Drainage - Major Maintenance

• Is there a history of flooding or coastal tidal or storm surge impacts affecting the road?

  Yes

  No

• How often do road closures occur due to weather conditions?

  Select Road Closure <1 times per year More than 1 < Road Closure < less than 3 times per year Road Closure greater than >3 times per year

  • Road Closure <1 times per year
  • More than 1 < Road Closure < less than 3 times per year
  • Road Closure greater than >3 times per year

• Is there an adequate drainage system in place to manage storm water runoff?

  Yes

  No

  N/A

• If the road was required to be closed for an extended period would it cause significant effect to the road network, communities, businesses and emergency services (i.e. Are alternative routes available)

  Select Alternative Route Available - Minimal Delays Alternative Route Available - Significant Delays No Alternative route Available - Extensive delays

  • Alternative Route Available - Minimal Delays
  • Alternative Route Available - Significant Delays
  • No Alternative route Available - Extensive delays

• Have there been any reported accidents related to road conditions?

  Yes

  No

  Unknown or no records

• Vulnerability Assessment of UNSEALED ROAD

  1= NOT VULNERABLE

  2= SLIGHTLY VULNERABLE

  3= MODERATELY VULNERABLE

  4= HIGHLY VULNERABLE

  5= VERY VULNERABLE

• General Comments

• Photos

  Media

• Have Issues been identified that require Immediate Emergency Rectification (i.e. An Immediate Public Safety Issue)

  Yes

  No

  N/A

• Details of Emergency Rectification Required

• Overall Assessment of the roadside UNSEALED ROAD - Condition State - Severity Level - (In accordance with Road Inspection Manual Calculation for Affected Length Vs Total Road Length)

• Monitoring Required

  3 monthly

  6 monthly

  12 monthly

  24 monthly

• General Comments

• Completed Signature

  Sign