Our Services

Dams/Reservoirs/Rip Rap

Our knowledge and experience is unmatched in the dam rehabilitation market. Dam breeches, outlet works replacement, spillways and toe drains are just some of the services provided to our customers. Zak has also completed many in-stream construction projects while pioneering innovative ideas.



Excavation and Grading

Zak has maintained a competitive edge in the excavation and grading market by employing GPS technology. We use hand-held units for timely spot checks of elevations and full machine control in motor graders, dozers and excavators to provide more competitive pricing for our customers.


Bridges and Structures

Zak’s 40+ years of experience in the civil market includes a solid reputation in the bridge market. Multiple span as well as single span bridges are part of our vast background of experience. CDOT as well as many other Colorado agencies make up our respected list of customers in this market.


Concrete Paving/Flatwork

Zak’s capabilities include full width concrete paving. Our work in this discipline is done to the exacting standards of CDOT specifications. Quality of concrete, reinforcement, smoothness and depth are a part of our QA/QC process. We also slipform curb, gutter and sidewalk to allow for a more seamless process.



Water/sanitary sewer/storm sewer
Our work in this area is performed safely to the standards and specifications of the governing agency. Our 40+ years of experience has helped us to incorporate innovative ideas to mitigate potential unsafe conditions.

Contact Zak Dirt

14290 Hilltop Road
Longmont, CO 80504

877-ZAK-DIRT (toll-free)


Office Hours:
8:00 - 4:30 MST, Monday - Friday