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Ahneman Kirby, LLC, formerly known as J.A. Kirby Co. (founded in 1871) is a full service civil engineering firm with specialized capability in buildings, bridge, highway, and construction services. The firm maintains professional staff with expertise in the areas of GIS, hydraulics and hydrology, culvert and bridge analysis, design and inspection, construction, and civil engineering.

Complete services provided by the firm include project management; complex analysis, geometric assessment, and horizontal control considerations; conceptual/preliminary design; final design layout; site engineering; feasibility studies; and construction services including staking, field inspection/supervision, contract administration, as-built drawing preparation and quantity review.
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Ahneman Kirby is headquartered in Greenwich, CT and an office in Charleston, SC. The office includes residential, commercial, municipal and CAD/drafting departments, reprographic facilities, a technical library and 3D facility. Our CAD department uses the latest version of AutoCAD with documents produced on monochrome and color inkjet plotter, and high-speed HP printer.
Reviews (4)
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Elizabeth Rosenstadt
Apr 08, 2022
Incredibly sloppy and slow. Drew up an entirely new plan without consideration of the existing drainage plan including overflow to catch basin on street (a must). Difficult to reach by email and phone, often unresponsive.
Angelo Santos
Jan 30, 2020
Efficient, professional, and for sure to be working with them again!
Ozer Baysal
Sep 25, 2019
They were timely, communicative, extremely professional and pleasant to deal with. Would most certainly work with them again.
David Ravera
Sep 30, 2018
I worked with both Keith and Tom at Ahneman Kirby for a to develop plans for project on our home. They were both great. They came up with a fairly simple solution and supervised the project and were very easy to work with. Highly recommended and I would use them again without hesitation.