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Project Name:
City of Redmond Vertical Control Survey


Client:

City of Redmond

Services Provided:
Survey Project Management
Surveying

Location:
Redmond, Washington

Project Description:
Triad Associates recently updated the City’s vertical control network established in 1989. The primary purposes for the comprehensive survey were to change the vertical datum from NGVD 29’ to NAVD 88’, to set new benchmarks and to replace damaged or destroyed benchmarks. Upon completion of the project, Triad delivered to the City a datasheet for each of the 104 bench marks established, including monument and location description, bench mark photograph, NAD 83/91 bench mark coordinate and NAVD 88’ elevations. The City will use the datasheets on their website. Users can click on an interactive map and get all the corresponding data for that location.

Timeline:
2009
Portfolio - Public-Sector Survey
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