Professional Service — Bozeman, Montana
Manhattan sits in the working farm heart of the Gallatin Valley, known as Montana's potato capital alongside the neighboring Dutch settlement of Amsterdam-Churchill. We bring the same skill and GPS-guided excavation to Manhattan's farms and homes that we do for our large scale projects.
Excavation & Site Preparation in Manhattan, MT
Manhattan is a genuinely hard working agricultural community, with seed potatoes, wheat, dairy, and beef that has sustained the same families here for generations. That agricultural character shapes what property owners here actually need: workshops, barns, farm access roads, drainage across working fields, utility trenching, and septic system installation for rural properties without municipal sewer.
It is also where our owner, William Hennessy lives and calls home. We work throughout Manhattan and the surrounding Amsterdam-Churchill area with an understanding of both agricultural land use and the newer residential growth reaching this part of the valley.
Why Manhattan Chooses Hennessy Development
What we handle in Manhattan
Farm and Agricultural site prep
Drainage across working fields
Residential foundation excavation
Utility Trenching and excavation
Rural septic system installation
Farm access road grading
Concrete work for foundations
Amsterdam and Churchill coverage
Explore Our Services in Manhattan
We provide every service below throughout Manhattan and Gallatin County. Click on one of these to learn more specifics of that service.
Frequently Asked Questions
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Yes. Many rural and farm properties around Manhattan rely on private septic systems rather than municipal sewer. This is one of our most requested services in this area.
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A standard rural septic installation typically takes 3-5 days, though larger properties or more complex soil conditions can extend that timeline. Since many Manhattan area properties rely on private septic rather than municipal sewer, this is one of our most requested services in the area. We'll give you a specific estimate after evaluating your site.
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As with the rest of Gallatin County, foundations near Manhattan generally need to be excavated below the local frost line. That is 36 to 48 inches deep to prevent frost heave damage over time. We go over this in our free estimate for your specific site before digging.
Explore Our Service Areas
We provide excavation and site preparation services throughout southwest Montana. Click on one of these to for your area.
Building in Manhattan?
Contact Hennessy Development today for a free estimate on your excavation, septic, foundation, or grading project in Bozeman.