Photogrammetric, Cross Section, Utility Survey. The scope of work for this work included aerial photography, topographic mapping, utility mapping, and cross sections (channel, bridge, and weir/dam) for the Rahway River Basin Flood Control Study.  The intent of acquiring this survey data is to assist in providing flood damage reduction for the Township of Cranford, NJ.

A 1,900 acre topographic survey, a 500 acre utility survey (storm sewers 12” or greater), 72 river cross sections, 11 bridges, and 3 dams were to be surveyed as part of this effort. Due to the fast approaching “green up or leaf out” of the vegetation along the river bank multiple crews were assigned to this work order. Much of the river was not walkable and needed to be swam. This was accomplished with a fisherman’s fishing tube.

The completion of this work order demonstrated our ability to provide a full range of surveying services, our ability to establish second order class II horizontal and vertical control, our ability to staff this project and to supply crews with the equipment to complete the work order. All CAD work was completed with Microstation and Inroads V8.