LIRR tracks

The B. Thayer Associates team is providing surveying and mapping services required for LIRR Design and Construction on an as-needed basis. Work has been performed as a sub consultant at various locations since 2011, and has progressed in accordance with the requirements specified by the LIRR.

The B. Thayer Associates survey team was contracted to produce a series of drawings depicting the planimetric and topographic features of the bridge span and gate house areas. Deliverables included cross-sectional data and mapping of the interiorstructure. Horizontal and vertical controls were established via Rapid Static GPS, conventional traversing, and differential leveling techniques.

B. Thayer Associates team members assist the Prime Consultant in a variety of field and office survey operations, primarily to provide topographical surveying services or to perform complex boundary and right-of-way document and map research. Field crews have performed survey operations in a variety of environments, including a water feature that passed under a rail road bridge, rail yards, and mainline track and station surveys.

On-Call Survey Services

Location: Long Island, NY

Client: MTA Long Island Rail Road