Black Mountain Excavation (BME) was founded in 2020 by Dalston Zimmerman with a simple vision: build an excavation company where employees are valued, clients are treated as long-term partners, and every project is completed with integrity, accountability, and pride.
Since its inception, BME has become one of Colorado’s fastest-growing heavy civil and site development contractors, earning the trust of owners, developers, EPC firms, and general contractors on some of the region’s most demanding commercial and infrastructure projects. Under Dalston’s leadership, the company has expanded operations into multiple states while maintaining the hands-on approach and responsiveness that clients have come to expect.
Unlike many company owners, Dalston remains actively involved in day-to-day operations, working alongside project teams, supporting field personnel, and ensuring every project meets BME’s high standards for safety, quality, and performance. His leadership philosophy is built on the belief that exceptional projects begin with exceptional people, and investing in employees ultimately delivers better outcomes for clients.
Today, Black Mountain Excavation continues to grow by embracing innovation, building lasting relationships, and taking on increasingly complex projects in data center development, renewable energy, industrial construction, and commercial site development. With a commitment to excellence and a reputation for dependable execution, Dalston and the BME team remain focused on building projects—and partnerships—that stand the test of time.
With Black Mountain Excavation, you can trust that we’ll go above and beyond to exceed your expectations and deliver exceptional results.
CEO, Owner
VP Estimating / Project Manager
Project Engineer
Controller
General Superintendent
Superintendent
Equipment Operation Manager
Equipment Operation Manager
Foreman
Marketing & Advertising
When you’re planning a commercial construction project, a well-organized timeline is essential. But in Colorado, Mother Nature often has her own schedule. Between the region’s unpredictable weather and its diverse soil conditions, excavation timelines can shift quickly without the right preparation.
Every data center story eventually turns into a conversation about power, cooling, and redundancy. But long before generators and chillers show up, a quieter kind of redundancy is being built into the project: in the soil.
In commercial site development, the terrain rarely comes ready to build. Most projects require reshaping the land to meet engineering specs, manage drainage, and create a stable foundation. That’s where cut and fill comes in.
