DOT 2018 - 2023 Proposed Highway Improvement Program | Page 26

2023 without improvements 75
Condition 82
Pavement : Our Most Obvious Asset
The Lake County Division of Transportation uses ARGUS , a computerbased pavement management system in order to :
• Assess the current condition of the system
• Estimate future road conditions
• Identify and rank road projects
• Maximize the condition of the system within a given budget
• Ensure consistent design decisions
Frequently-Asked Questions about Pavement Preservation
How do you choose which roads to repair ?
Pavements age at different rates based on a variety of factors like traffic , weather , and the soil beneath the pavement . For this reason , some roads need to be repaired more frequently than others . Each
2023 without improvements 75
Pavement Condition Inventory
74 %
Good ( 80-100 )
May require crack sealing or a thin overlay . These sections do not require immediate attention . Pavement in this category is generally less than 12 years old .
fall , one-quarter of the pavement is tested on a fourand the test results are evaluated to produce an over rating . This data helps us determine what strategy to road and at what time . It might seem strange , but th when it makes better economic sense to take a “ do n proach now and perform a more comprehensive rep
Why are you repairing a road that was rece structed ?
Preventive maintenance items like crack sealing and seal and protect the pavement . When applied early i life , studies indicate that these preventive maintenan will extend its life and reduce life-cycle costs . The cha that preventive maintenance techniques applied at t can add more than 12 years to a pavement ’ s useful li of the cost . to rebuild .
100
90
80
Early repairs are most cost effecti
Surface Treatments $ 145,000
Thin Overlay $ 765,000
65 % of life 25 % quality drop
Resul
2023 with improvements
77
18 %
7 %
Satisfactory ( 70-79 )
May require resurfacing or other
rehabilitation in the near future . Pavement in generally 12-14 years old .
Failing ( 60-69 )
Will require some type of improvement
in the near future to preserve usability and avoid the need for reconstruction . This pavement is approaching the end of its useable life .
pavement condition
70
60
50
40
30
20
Mill , Thin Overlay $ 905,000
Mill , Overlay with Fabric $ 1,040,000
Medium Overlay $ 2,075,000
Thick Overlay $ 2,475,000
Reconstruction $ 6,195,000
P
Current Pavement
Condition 82
2 %
Backlog ( 10-59 )
May require total reconstruction , including reconstruction of the subgrade . Pavement in this category is generally more than 15 years old .
10
0
Repair Strategy Required
Strategy Cost Per Mile
0 2 4 6 8 10 12 14 16 18 20 pavement life , years
Source : Ada
18 • 2018 - 2023 Proposed Highway Improvement Program