Step 1: Analyze the condition of the roadways on an ongoing basis with a computerized pavement management system.
Step 2: Combine the data gathered from site analysis with other information about each street, including:
Step 3: Create a prioritized list of roadway repair and maintenance projects based on the most cost-effective type and timing of repairs. Projects may include the following:
-
crack sealing
-
hot oil chip seal
-
asphalt overlay
Step 4: Develop prelimary cost estimates for each likely project based on historic costs.
Step 5: Compare preliminary cost estimates with estimated budget amounts and group the projects into a five-year plan.
Step 6: Compare and, as needed, revise the five-year plan with project lists from other agencies and organizations that may have plans to work in the roadway.
This saves money and time. Collaborating with other agencies can also help limit inconvenience to the public by reducing frequency of work performed on a particular street.
Step 7: Group the final list of street projects into contract packages, taking into account roadwork not completed the previous year and roadwork that will need to be completed in the following year.
Step 8: Collaborate with State and County agencies on contract packages to maximize efforts and funding.
-
It allows contractors to provide work at a lower cost to citizens by bidding on larger amounts of asphalt and amortizing some of the mobilization costs.
-
It allows the City to efficiently schedule the inspection teams needed to ensure delivery of a quality product.
The Multi-phase Construction Processes in Road Preservation.
First, during the spring, City crews repair the streets' road base and drainage. This may include reconstruction of drainage and ditch systems, repair of failed road base sections and preparation for any other work such as reconfiguring an intersection, adding a bike lane, or improving a shoulder or curbline.
Addition prep work is required for all manholes and water valve covers in the roadway before new asphalt is placed on the roadway.
During the summer, contracted crews place asphalt on the roadway. After paving is completed, City crews will re-stripe the streets.
The last step takes place during the fall, when City workers reconstruct the shoulders of the roadway. This work is scheduled in the fall so City staff and contractors can mobilize and complete the shoulder work of the entire paving project in the most cost-effective manner.
The result is:
*Over time, oil in asphalt oxidizes and becomes brittle. A chip seal is typically added to the roadway 7-10 years after the paving is completed to seal any small cracks that may be forming and restore a flexible surface to the roadway. This may be done two or three times during the life of the pavement.
