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Street Management - Street Reconstruction

 

Engineering | Design | Inspection | Street Management | Construction Projects


Pavement Management System | Street Preservation Program | Street Reconstruction


Street Reconstruction

Note: As with all outdoor construction projects, weather plays a large role in the timeliness of completion. During some phases of construction, one day of rain can delay a project four or five days. All efforts are made to keep things moving, but some delays are uncontrollable.

  1. Preliminary Surveying

    A survey crew consisting of two to three people will spend anywhere from three days to two weeks doing a pre-design topographical survey of the street and front yards up to the house fronts. The crew can complete 600 feet of street per day (including control).

  2. Cut and Cap Irrigation Systems

    Residential irrigation systems will be cut and capped at the Right of Way by the City's contractor. It is the resident's responsibility to notify the City of Leawood of any irrigation systems in place. Individual residents will be notified beforehand by the contractor. The irrigation system will be reinstalled after the curb has been installed and the grading complete.

    Note: This is a good time to consider moving shrubs and plants in the right of way that may be in danger. We make every effort to keep the impact to a minimum and usually can work around trees, but small plants and shrubs will usually get damaged or destroyed during grading. Anything in the Right of Way (usually 12 feet behind the curb) is at risk and is not replaced by the City. If you have questions, please call David Ley at the Public Works Department (913-339-6700 ext 134).

  3. Existing Utility Locating

    Before actual construction begins, the utilities will be field located. This results in numerous paint marks on the ground in the right of way and utility easements. The utilities must relocate their facilities that are in conflict with the proposed improvements. This is done 1-2 months in advance of the City's work.

  4. Storm Sewer Installation

    The contractor's survey crew will stake out the proposed storm sewer. The storm sewer contractor will mobilize his equipment (usually several large pieces) and take delivery of some of the product to be installed. Large concrete boxes and concrete pipe will be temporarily stored in the Right of Way (which includes grass). Construction of the storm sewers commences and lasts from two or three days to six weeks depending on the size and scope of the project. Other than temporary closures when pipe is being installed across the street, local traffic will be carried through the project during this phase.

  5. Pavement and Curb Removal

    After the storm sewer has been installed, the street contractor will remove the existing pavement, curbs and portions of the driveways and sidewalks as necessary. If a change in the grade of the street is planned, the contractor will also raise or lower the subgrade per the change at this time. This process will take from three days to two weeks, depending on the size of the project and the weather. During this phase, local traffic only will be allowed through the project area from 5:00pm to 7:00am. During working hours, residents will need to park at a site adjacent to the project. They will, however, be able to park in front of their houses or possibly access their driveways during evening hours.

  6. Sub-Grade Stabilization

    Subgrades are typically stabilized with fly ash. The street will be closed to ALL traffic during working hours each day the fly ash is placed. The contractor will give 48 hours notice prior to installing the fly ash. This process usually takes one to three days to complete. Fly ash is a very fine dust that can cover things quickly and thoroughly if any wind exists, and residents are urged to close their windows during this time. Do not drive through fly ash before it has been mixed and compacted! Only local traffic will be allowed from 5:00pm to 7:00am. Residents will be able to park in front of their houses and possibly access their driveways at this time. The fly ash must cure for a minimum of three days before the curbs are placed. If it rains during the curing period the City may pay the contractor to place aggregate to aid in access. Local traffic will be allowed to drive on the subgrade during this time.

  7. Curb Installation

    While the fly ash is curing, the concrete contractor will install a string line to guide the curb installation machine along the full length of the project. The string will be about one foot behind the curbs and 2 feet high. It will be lowered at each residence for access until the night before curb installation begins. During curb placement, no traffic will be allowed in the construction area. All residents will need to park at a site adjacent to the project area during working hours. Residents will be allowed to park on the street in front of their houses from 5:00pm to 7:00am. Residents will be notified a minimum of 24 hours before the curb installation begins since cars will need to be moved by about 7:00 AM. After the curbs have been installed until the pavement and driveways are installed, the residents will not have access to their driveways. This usually takes 10 to 21 days.

  8. Pavement Installation

    Approximately five days after the curbs have been placed, the asphaltic concrete will be installed. This process usually takes one to three days for each of two layers. The subgrade will be graded to a smooth finish, then the first lift will be installed. Prior to the second lift of asphalt being installed, a layer of "tack oil" will be spread across the surface to assist in creating a bond between the asphalt layers. Residents are urged not to drive on this oil, as it is extremely difficult to remove from an automobile. The street will be closed to traffic during working hours and opened up to local traffic at approximately 5:00 PM. Residents will be notified by the contractor a minimum of 24 hours before paving commences since cars will need to be moved by about 7:00 AM.

  9. Driveway Installation

    Either immediately before or immediately after the pavement installation or both, the driveways will be reconstructed. This will take between three days and two weeks depending on the number and size of the areas to be replaced. The recommended cure time for the driveways is five days, after which residents will have full access to their driveways at all times.

  10. Grading

    The contractor will grade the Right of Way and easement areas and prepare them for sod. Any valve and meter box adjustments will be done at this time as well as irrigation system reinstallation. This process will take from 2 days to two weeks. Local traffic will be allowed on the roadway at all times during this phase.

  11. Sod

    Sod will be placed during seasons of satisfactory growing conditions. Generally accepted time periods are between March 15th and June 1st and between September 1st and November 1st. The contractor will water the sod for a period of 20 days after which it will be turned over to the owner for normal care. The sodding process will have a minimal impact on traffic.

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