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Bluebook Surveys

A bluebook survey is a GNSS or leveling survey performed to certain specifications which is formatted and submitted to the National Geodetic Survey (NGS) for inclusion in the National Spatial Reference System (NSRS). Terrasurv has performed dozens of GNSS bluebook surveys ranging from a single station to countywide networks of more than 400 stations, as well as providing processing and adjustments for submittal of projects observed by other agencies and companies. Leveling projects from a single reset station to a 130 mile second order level run and subsidence monitoring projects have also been submitted.

Example Project: USACE Pittsburgh District Reservoirs CEPD Survey-The Pittsburgh District of the US Army Corps of Engineers needed to have an NSRS station on each of their sixteen reservoirs to meet the requirements of the Comprehensive Evaluation of Project Datums required after Hurricane Katrina. This project established an accurate (0.03 m NAVD88) elevation at each project.

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The report submitted to NGS for this project can be downloaded here.