2__687-25_Admin_HQ_As-Builts_0003.pdf

This document comprises site development plans for Conboy Lake National Wildlife Refuge Administrative Headquarters project, prepared by the U.S. Fish and Wildlife Service. The project owner is the Division of Engineering, R-1, located in Portland, Oregon, with Alder-Bradbury Construction, LLC serving as the general contractor and Rogers Surveying Inc. providing surveying services.

The plans include comprehensive site development drawings covering 14 sheets detailing existing conditions, site layout, coordinate plans, grading, utility infrastructure, erosion control, electrical systems, and septic systems. Key infrastructure improvements involve constructing access drives, parking areas, utility pedestals for RV and power connections, a concrete loading area for hazmat/fire station/propane tank, precast wheel stops, ranch gates, and parking stalls with ADA accessibility features. Utility work includes sewer connections, non-freeze yard hydrants, cleanout-to-grade installations, and water distribution systems. The specifications sections address general requirements, demolition and site work, concrete construction, asphalt paving, silt fencing, geotextile fabrics, erosion control measures, and site landscaping. The project incorporates environmental considerations including removal of existing site features, protection of natural areas, proper stormwater management, and compliance with Fish and Wildlife Service standards. Plans are based on boundary and topographic surveys by Rogers Surveying dated 3/23/08, with vertical datum referenced to NAD 88 (GED 03).