Castle Rock Stormwater Improvements - DNR Document Summary

This is a Department of Natural Resources (DNR) project specification document for the Castle Rock Stormwater Improvements project in Washington State, involving drainage and parking lot enhancements at a fire dispatch building. The project scope includes installation of a new exterior crawl space entrance, replacement of approximately 280 linear feet of 4-inch roof drain pipe, approximately 90 square yards of concrete surfacing around the building perimeter, an 85-linear-foot interceptor trench, a 70-linear-foot shallow drain within the building's 2.5-foot crawl space, grading work within the crawl space, installation of three new catch basins with associated piping, and site restoration encompassing concrete, asphalt, grass areas, and a small rockery. The additive schedule includes chip seal and fog seal treatment for approximately 1,860 square yards of parking lot with site preparation, removal and reinstallation of wheel stops, and paint markings applied in kind, as well as construction of a new hot mix asphalt driveway connecting the parking lot to an accessible parking pad near the dispatch building. All work must be completed during normal building operations with no building closures permitted.

The document establishes specifications and technical requirements for contractor performance on this infrastructure improvement project. Specific pricing terms, contract duration, and award information are not detailed in this specification document. The project prioritizes minimal disruption to ongoing fire dispatch operations, requiring contractors to coordinate work schedules and methodologies that maintain continuous building functionality throughout the construction period.