ida-bonner841-1_Controlsheet.xlsx

This file is a Survey Control Point List in Excel format for the Trestle Creek Road project (ID FLAP BONNER 841(1)) located in Idaho. The control sheet documents 47 survey control points with precise geographic and state plane coordinates using the Idaho West SPCS NAD83 (2011) coordinate system and NAVD88 GEOID12b vertical datum. All measurements are in US Survey Feet, with an epoch date of 2010.000. Each control point (numbered 19101 through 19147) includes north and east state plane coordinates, orthometric elevation, latitude and longitude coordinates, ellipsoid height, combined scale factors, and physical descriptions indicating 5/8-inch iron monuments with FHWA aluminum caps. The data spans two worksheets with 35 and 12 active data rows respectively, covering the project area from mile point 100 to 103.7 along Trestle Creek Road.

The survey control data was compiled on February 24, 2025, from field work conducted on multiple dates and is intended to support the Task Order Request for Proposals (69056725R000015) issued to six eligible prime contractors under the Idaho, Montana, and Surrounding Areas MATOC contract vehicle administered by the Federal Highway Administration. The control points serve as surveying reference markers for the design and construction phases of this road improvement project and provide the geodetic foundation necessary for contractors to verify distances, elevations, and spatial accuracy during project implementation.