Topographic Surveying
8 articles from Terrane Land Surveying
Does a Topographic Survey Show Underground Utilities in Washington?
Learn what a Washington topographic survey can show about underground utilities, what 811 markings mean, and what to define before fieldwork.
Why Drainage Design May Need Survey Data Beyond the Building Footprint
A building addition’s drainage may depend on grades and low points beyond its footprint. Scope the survey around the conditions the design needs.
What If Utility Records and Surface Features Do Not Match?
When utility records and measured surface features disagree, show both sources and verify the conflict before relying on an assumed buried alignment.
Can a Bellevue Project Reuse an Existing Topographic Survey?
An existing Bellevue topographic survey may still be useful, but its age, changed site conditions and coverage must fit the new application and design.
What Survey Information Does a Seattle Steep-Slope Site Need Before Design?
For a Seattle steep-slope site, align the topo scope with the architect, civil engineer, geotechnical team, and current SDCI requirements before design advances.
Why Two Topographic Survey Proposals for the Same Site Can Differ
Two topo proposals can differ in surveyed limits, features, control, utility work, and deliverables. Compare their scope before comparing price.
When a Washington Site Changes After the Topographic Survey
Site work changed after the topo survey? Identify the affected area, changed elevations and features, and the survey update needed before civil design resumes.
When a Topographic Survey Is Needed for Civil Design
Learn when civil design needs a topographic survey, what information it should capture and which scope decisions prevent redesign and return trips.