Fire Island Hydrographic/Land Survey & Sampling

Location: Fire Island, New York

Childs Engineering Corporation was tasked by the United States Coast Guard to perform a hydrographic survey, land survey, and vegetation survey in the upland area of their Fire Island location.

The hydrographic survey was performed using an Odem Hydrotrac fathometer with differential GPS (sub-meter horizontal accuracy and .1 foot vertical accuracy). The data collection was via laptop computer using Hypac software (continuous recording) integrated with tide board manual readings.  The land survey was performed using a Lecia total station and included both the upland area as well as the waterfront facilities. The vegetation survey was conducted by a subconsultant, GEI Consultants, to assess the upland area for various types of vegetation.

Project Type: Hydrographic Survey