The city has an outlined Pavement Management Program (PMP) and a dedicated funding source (the PMP Fund). A general tax levy, franchise fees, municipal state aid (MSA), and assessments comprise the revenue of the PMP fund. The projects are outlined in the 5-Yr Capital Improvement Plan (CIP), where the projects are identified on this map.

Chanhassen has approximately 119 miles of city-owned streets and has committed to its residents to provide a systematic rehabilitation and repair program to assure that the streets are serviceable, safe, functional, and provided at a reasonable cost to meet the needs of our residents and the traveling public.

The city is broken up into three geographic areas, and each area is field-reviewed for pavement condition once every three years. This ensures we have accurate and timely information related to the condition of the pavement. The pavement condition is based on a scale from 0-100, where 0 is a completely failed pavement, and 100 is brand new. The city has established a goal to have the average pavement condition across the entire network be 70 or greater. 70 is considered good condition. This means that many streets will have a pavement condition less than 70, and many will have a pavement condition greater than 70, but the average is to stay at or above 70. City staff annually analyzes the condition rating of the streets and proceeds in a manner that “makes sense” and is within the funding provided. The goal of the program is to “do the right maintenance at the right time.”

Four (4) maintenance and construction techniques are used as part of the PMP program: Sealcoat, Mill and Overlay, Reclamation, and Reconstruction.

1. Sealcoat involves spraying a bituminous adhesive on the existing surface and topping it with small graded aggregate rock. The excess aggregate is swept off and recycled. This activity helps protect the pavement from oxidation and the effects of moisture.
2. Mill and overlay involve grinding off the top layer of the surface and installing a new top layer of pavement. This is a structural improvement and extends the life cycle of the original pavement.
3. Reclamation takes it a step further, grinding up the asphalt and mixing it with the top part of the rock base to create a new base layer. Then, two new layers of asphalt are installed on top of that base layer. Excess material is generated and must be reused or hauled off and recycled.
4. Reconstruction removes and replaces the existing asphalt pavement and aggregate base entirely and installs an entire sand subsection, drain tile, curb, and gutter if not already present.

Some streets, typically the ones with a higher traffic volume, are designated as municipal state aid routes and, therefore, are eligible for funding from the state. These streets are typically rehabilitated as separate projects from normal city streets, but the techniques used and the project delivery are no different. All street projects are assessed to benefit properties, whether they are MSA Routes or not.

How long has the Pavement Management Program (PMP) been in place?