R--JEFF - Utility Mapping

The National Park Service at Gateway Arch National Park seeks a qualified contractor to perform a comprehensive subsurface utility and irrigation system mapping of approximately 45 acres. The work involves field location of utilities using non‑motorized equipment, collection of GPS/GNSS data, and delivery of both GIS deliverables (ESRI geodatabase projected to UTM Zone 15, NAD83 (2011)) and PDF maps. Existing as‑built drawings are available in paper, scanned, and digital formats. The contractor must avoid UTVs on unpaved surfaces, may use marking paint sparingly, and drones are prohibited unless a special waiver is obtained. The contract will be awarded on a firm‑fixed‑price basis, with performance required within 60 days of award. • Survey ~45 acres of subsurface utilities and irrigation lines at Gateway Arch NP • Deliver GIS data (ESRI geodatabase) and PDF maps; optional shapefiles acceptable • Use foot‑based or hand‑carried locate equipment; no UTVs or drones (unless waived) • Coordinate with NPS GIS specialist; incorporate existing as‑built drawings where available • Submit single‑line‑item fixed‑price quote by 10 Sept 2026; questions due 8 Sept 2026