Calibration Point Table Summary

This is a CADD (Computer-Aided Design and Drafting) file containing a comprehensive calibration points table for the Eckert Road Bridges 2147 and 2148 project in Boise, Idaho, involving the Idaho Department of Transportation and local jurisdictions. The file documents surveying data for all corners, found monuments, and property corners across the project site, providing precise geographical coordinates and elevation measurements essential for bridge construction over the Boise River and Ridenbaugh Canal. The table lists 69 calibration points with corresponding point numbers, sheet references, station offsets, northing and easting coordinates in a geographic coordinate system, elevations, and monument types (including brass caps, aluminum caps, control point caps, and various pin types). These survey monuments serve as reference points to ensure accurate construction layout and alignment during demolition of existing bridge structures and construction of new bridges, the roundabout intersection at Eckert Road and Boise Avenue, multi-use pathways, greenbelt underpass, and associated roadway improvements.

The calibration data represents foundational surveying work required to establish precise spatial references across the project area, with monument designations indicating both permanent survey control points and property corner markers. This technical documentation is critical for construction contractors to verify alignment, elevation, and positioning of all structural and site improvements throughout the project's execution, ensuring compliance with the detailed plans and specifications outlined in the project scope of work.