Street Preservation
Street Preservation
Street Preservation
Street preservation is the process of planning maintenance and repair of the City street network to ensure the overall condition is maintained at the desired level of service. The City maintains more than 1,200 lane miles of street pavement valued at more than $1 billion. A continued investment in routine maintenance extends the life of the pavement.
Street Infrastructure and Prioritization
Street Infrastructure - The City is responsible for maintaining three types of streets:

-- Local streets carry traffic to collector streets.
-- Collector streets are three-lane streets that carry traffic from local streets to arterial streets.
-- Arterial streets are three-lane and four-lane roadways.

Prioritization - The City prioritizes projects yearly to maintain a Pavement Condition Index (PCI) of at least 70.

-- Arterial streets receive the highest prioritization because they are the most heavily used.
-- Collector streets receive a second priority.
-- Local streets receive the third priority.

By utilizing different methods of preservation and maintenance, streets that are graded below 70 are prioritized for construction projects based on street type. Streets that are graded above 70 are prioritized to be preserved and maintained to lower future project costs.
Local and Collector Streets Mill & Overlay Facts
Mill and Overlay

A mill and overlay is a type of rehab project that replaces the surface of existing streets. Typically, this requires removal (milling) of the top two-inches of the asphalt surface and installing (overlaying) a new asphalt surface. This project type will also include any needed full depth repairs to the pavement, spot replacement of damaged concrete curb and sidewalk and installation of ADA compliant sidewalk ramps.

Mill and overlay projects include spot replacement of damaged curb, meaning not all curb on a street will be replaced. Curb is selected for replacement based on its condition. The appearance or abruptness of the curb are common complaints that may not warrant replacement.

Maintenance of driveways is the responsibility of the property owner, according to City ordinance. The City will maintain the curb and gutter (two-foot wide transition between the driveway and street) and sidewalk adjacent to the driveway.

Phases of Construction

Mill and overlay projects on local and collector streets are often completed in two phases. The first phase has City of Olathe Street Maintenance crews providing full depth pavement (base) repairs. This saves the City money, allowing us to provide the most value to your tax dollars. Second, a General Contractor is hired to complete the remaining work. These phases are most often a year apart to avoid scheduling conflicts and to reduce the amount of time for active construction on your street.

The City of Olathe requires the hired Contractor to complete work in a timely manner once the work is started, however, there may be delays to construction for a variety of reasons. These reasons may include but are not limited to weather, utility conflicts, and equipment maintenance. If a delay occurs, the City will work with the Contractor to minimize the time and reoccurrence of the delay.
Construction Information

At the beginning of the construction season, The City will send a letter to impacted residents. The letter will be sent once a Contractor is hired but before the schedule is determined.

Postcards will be sent a few weeks before construction starts in the neighborhood.

A few days in advance to concrete curb removal, the contractor will notify residents, and then again in advance to the milling of the street.

Working hours will be limited from 8 a.m. to 5 p.m., Monday through Saturday. No work will be permitted on Sundays.

Parked Vehicles During Construction

In advance to concrete curb removal, vehicles must be parked on the opposite side of the street prior to 8 a.m. Curb will be removed from one side of the street at a time. Once the curb is replaced cars will be unable to drive on the new concrete for three to five days while it cures.

In advance to the milling and paving, vehicles must be removed from the street prior to 8 a.m. The street can be driven and parked on immediately following these operations.

Residents will be instructed on where to park from the notice provided by the Contractor. Any vehicles not moved as directed will be towed.

Private Improvements Behind the Curb

All private improvements adjacent to the marked curb or sidewalk must be moved. If there is uncertainty as to which area of curb or sidewalk is marked for replacement, the City Project Manager or Contractor will be able to assist.  Mailboxes do not need to be relocated.

Trash Service During Construction

Trash pickup will occur prior to 8 a.m. on its normally scheduled day. If the trucks are unable to access the street, accommodations will be made, and residents will be notified.

Driving on Replaced Asphalt/Curb

New concrete curb takes about three to five days to cure before it can be driven on. The contractor will typically block off new curb with cones or tape until it is ready for vehicles. Driving on the concrete early can damage the curb and delay the project.

New asphalt can be driven on as soon as it is installed. Slowly driving through the tack oil placed on the street before the new asphalt is advised. This material is sticky and very difficult to remove once it is dry. Special accommodations for access can be made by contacting the City or Contractor.

Restoration and Damage

Soil backfill is not installed until the concrete improvements are fully cured. In most cases seeding and sodding will not begin until the Fall but could be completed in the Spring if the weather allows.

The construction contractor is responsible for repairing sprinkler systems damaged by construction. If sprinklers are damaged, the Contractor’s Superintendent should be contacted.

Project Questions

Both the City of Olathe and the Contractor are available to answer questions. The City Project Manager is the best contact for all questions throughout a project. Questions for the Contractor should be directed to their Project Manager or Project Superintendent. Contact information will be provided by letter or postcard in advance of construction or will be available online.
Funding for Projects
Capital Improvement Plan (CIP) Funding

The Street Preservation Program is included in the Capital Improvement Plan (CIP) for funding each year.

Additional Funding

The City seeks additional funding opportunities, including grant funding. Grant funding can typically be used only on arterial (four-lane) streets. Local streets are the most likely street type in poor condition; and they are not usually eligible for grant funds.