mt-ep-yell2022-1-3_Rescue creek_control-sheet.xlsx

This is a survey control sheet in Excel format containing precise coordinate and elevation data for the Yellowstone National Park Rescue Creek Bridge Replacement project. The document provides detailed survey control points (RESCUE1, RESCUE2, and RESCUE3) with state plane coordinates, geographic coordinates, orthometric elevations, and combined factors, all established using Wyoming West SPCS NAD83 2011 coordinate system and NAVD88 GEOID18 vertical datum. The field work was conducted in March 2024 with final adjustments completed in April 2024.

The survey control points are marked with 5/8-inch iron rods with FHWA aluminum caps and provide the foundational reference framework for the bridge replacement construction project identified as MT ERFO NP YELL 2022-1(3) under NPS PMIS No. 326131. The document includes technical specifications for coordinate system conversions, epoch date of 2010.000, and instructions for using combined factors to verify ground distances. This survey data supports the federal contracting opportunity for bridge replacement work being conducted through task orders to six pre-selected prime contractors including H-K Contractors, M.A. Deatley Construction, Missouri River Contractors, Oftedal Construction, Riverside Contracting, and Sundt Construction.