Cost and funding sources. While reconstruction is the best long-term solution, it is much more expensive than an overlay. Arterial streets are often eligible for total reconstruction with up to 70% Federal or State Grants with 30% City funds. Collector streets, in contrast, do not usually qualify for matching grants so must be financed out of City Street Funds. In the past, the City has entered into "Piggyback" contracts with King County on their annual overlay programs. This has allowed the City to take advantage of the County's professional management, volume pricing, and quality contractors at very reasonable cost. For more information, please call Public Works at 425-831-4919.