Linder Road, State Street to Floating Feather Road / Landscape

Ada County Highway District is requesting bids for landscape planting and irrigation improvements along Linder Road from State Street to Floating Feather Road in Ada County, Idaho, with proposals due October 21, 2026.

The scope encompasses landscape planting and irrigation installations within roadway swales, buffers, medians, roundabouts, and a basin, plus installation of a tubular metal gate and fencing enclosure at the basin. Work includes site preparation, plant material installation per specified selections, comprehensive irrigation system design with master controller, isolation valves, pop-up sprinklers, and reduced-pressure backflow prevention, and detailed bioretention soil mix (BSM) installation. The BSM specification requires precise composition—60% fine aggregate sand, 20% loamy sand, and 20% compost—with stringent gradation, chemical, and pathogenic testing per AASHTO, ASTM, and TMECC protocols. The specification mandates minimum infiltration rate of five inches per hour in place. The project references ACHD Stormwater Design Tools and Bioretention Swale BMP 30 under ACHD Policy 8200. The contractor must coordinate with ten utility companies (Sparklight, Lumen, Eagle Sewer District, Eagle City Water, Idaho Power, Intermountain Gas, Silver Star, Fatbeam, Syringa Networks, Veolia, and Zayo) throughout all project phases; utility relocations and adjustments will take approximately five working days from Notice to Proceed. The contractor must follow ACHD General Conditions Section 26 and coordinate with ACHD Utility Coordinator Scott Bennett at (208) 387-6259.

The project is identified under Ada County Highway District project numbers 520033 and 320026, with design services by Breckon Land Design under licensed landscape architect Jon Frittz Breckon (LA-16536). A bid bond is required. No contract value, contract term, or evaluation criteria weighting are specified in the procurement documents.