Agenda

1
Agenda

• Presentation of the Archuleta County Road System
• Questions
• Public Comment please limit your comments to 3
  minutes

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Archuleta County

• Road System

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Road Network Inventory

• 286 miles in current road network
• 43 miles of paved roads
• 22 miles of chip seal roads
• 221 miles of gravel roads
• In addition, County assists in the maintenance of
  up to 172 miles of Forest Service roads
• Seven functional classes identified (Major
  Arterials, Minor Arterials, Major Collector,
  Minor Collector, Residential, Other,
  Forest/Rec.)

4
Pavement Type Distribution
5
Asphalt Pavement Network Evaluation

• Represents 15 of Total Road Network

6
Excellent Surface Drainage
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Good Surface Drainage
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Fair Surface Drainage
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Results of Condition Survey For Asphalt Paved
RoadsRemaining Service Life

• Average asphalt paved network RSL 8.5 years
• 0 of road network with RSL 0 years
• Most common types of pavement distress
• Fatigue Cracking
• Utility Cuts (Potholes/Patching)
• Edge Cracking

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Remaining Service Life Distribution
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Asphalt Pavement Poor ConditionRSL 2 years
12
Asphalt Pavement Fair ConditionRSL 8 years
13
Asphalt Pavement Good Condition RSL 12 years
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Gravel Road Network Evaluation

• Represents 77 of Total Road Network

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Results of Condition Survey For Gravel Roads

• Average gravel road network RSL 6.0 years
• 0.5 of road network with RSL 0 years
• Most common types of distress in gravel roads
• Poor Cross-Section
• Potholes
• Corrugations

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Gravel Road Remaining Service Life Distribution
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Failed ConditionRSL 0 years
18
Poor ConditionRSL 2 years
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Fair ConditionRSL 4 years
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Good Condition RSL 6 years
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Excellent Condition RSL 10 years
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Surface Treated Roads Chip Seal

• Represents 8 of Total Road Network

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Results of Condition Survey For Chip Seal Roads

• Average chip seal road network RSL 6.4 years
• 5.3 of road network with RSL 0 years
• Most common types of pavement distress
• Fatigue Cracking
• Edge Cracking

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Current Distribution of Remaining Service Life
for Chip Seal Road Network
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Fatigue Cracking in Chip Seal
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Probable Cost

• Asphalt Pavement 950,000/mile
• Chip Seal 130,000/mile
• Gravel 80,000/mile
• Engineering Design 7.5 of Construction
• Construction Administration 2.5 of Construction

Based upon 2009 cost
27
Archuleta County2009 Projects

• County Road 975 Reconstruction
• 837,322.00
• Arboles RB Facility
• 450,000.00
• Park Avenue Reconstruction
• 1,812,982.91
• Holiday Avenue Paving
• 508,609.35
• Juanita Bridge
• 1,141,758.00
• Gravel Application
• 370,000.00
• Magnesium Chloride Application
• 460,000.00

TOTAL SPENT IN 2009 5,580,000
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Normal Criteria Used to Rate Projects

• ADT (Average Daily Traffic)
• Condition of Roadway
• Classification of Roads
• Drainage
• Safety

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What other criteria should we consider to decide
on the next projects?