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Keller Group
From urban development in Denver to infrastructure projects in remote and mountainous terrain, our team delivers solutions tailored to complex ground conditions.
Operating from our Denver office, we support projects throughout Colorado, Montana, North Dakota, South Dakota, Wyoming, New Mexico, and Nebraska.
Contact us
5775 Eudora Street
Commerce City, CO 80022
- Toll free: 800-864-4328
- T: 303-469-1136
- F: 303-469-3581
Geotechnical contractor in Denver, Colorado
Keller has a strong presence in Denver and the Front Range, supporting projects across a wide range of markets in one of the fastest-growing construction markets in the United States. We have been present in Colorado for over 40 years, employing over 300 professional and craft workers.
Our Denver-based teams specialize in:
- Ground improvement for urban development
- Foundation solutions for commercial and industrial construction
- Slope stabilization in mountainous terrain
With experience navigating Colorado’s variable soil profiles and seismic considerations, we deliver reliable geotechnical solutions from concept through construction.
Some of Keller’s local noteworthy projects include work on the Denver Broncos Stadium, I-70, I-25, Denver International Airport, and the Light Rail expansion from downtown to DIA.
Our geotechnical solutions
Featured project:
Slope Stabilization in Wyoming
As both construction manager and general contractor, Keller performed several techniques to provide slope stabilization below a Sheridan, Wyoming junior high school.
In 2017, an 80-ft-tall slope near a junior high school began to fail. Without remediation, any further movement would block a creek at the toe of the slope and cause widespread local flooding. Keller, known worldwide for its innovative geotechnical solutions, devised a multi-technique solution to stabilize the slope and ensure stability.
First, Keller constructed a 20-ft-high soil nail wall, installing a total of 460 soil nails up to 35 ft long. A drainboard was installed behind the entire wall to collect and divert groundwater. Lower down, the team opted for a 20-ft-tall, anchored soldier pile wall. Over 140 soldier piles were installed up to 60 ft deep, along with two rows of high-capacity anchors. Behind the wall, horizontal drains were constructed to intercept groundwater and funnel it into a dedicated drainage system.
To further increase the safety of the slope at its base, Keller constructed a gabion retaining wall up to 8 ft high and 3 ft wide along the creek. Thirty-foot-long anchors were installed for the first row of baskets, with additional anchors every fourth row. Finally, shotcrete was applied, hand-carved, and stained to create a natural-looking finish.
We are very pleased with the collaborative effort between everyone involved including our local subcontractors, suppliers, and Sheridan community. The use of several remediation techniques provided a cost-effective long-term solution that is both functional and aesthetically pleasing.
Key contacts
Joe Harris is a Vice President at Keller North America.
Joe has more than four decades of experience in geotechnical construction and operations leadership. He began his career with Denver Grouting Services and advanced through roles including Project Manager, Area Manager, and Operations Manager before becoming Vice President, where he now oversees regional operations and specialized projects.
Featured projects
Infrastructure
Teton Pass: The Big Fill Slide
Keller provides rapid design and mobilization to perform slope stabilization following a major landslide along Teton Pass.
Commercial
1701 Platte Street
Keller designs and installs support of excavation and deep foundations for a multi-use building, working in expansive bedrock and a shallow groundwater table.
Institutional
MSU Regency Athletic Complex
As an alternative to the originally proposed removal and replacement program, Keller performed dynamic compaction to improve the density of the fill material and provide a more uniform condition across the site.
Commercial
Failing Block Wall
Keller provided a design-build solution to quickly and economically repair a failing block wall and stabilize the store while allowing the facility to remain operational.
Institutional
Big Goose Creek Slope Rehabilitation
Disaster struck when an 80-ft high slope in Sheridan, WY, underwent a major slide, displacing more than 50,000 cubic yards of material.
Power
Rolling Hills Wind Farm
Keller’s ability to assemble experienced personnel and resources in-house to perform all techniques under one turnkey contract streamlined the overall ground improvement/foundation installation operation.
Oil, gas and chemical
Elkhorn Valley Ethanol
Keller provided a cost-effective vibro concrete columns design to overcome constructability concerns (necking) within the soft soils.
Infrastructure
Missouri River Wastewater Treatment Plant
Dry soil mixing was used at the Missouri River Wastewater Treatment Plant to stabilize soft soils to protect against riverbank failure.
Institutional
St. Vrain Mill
Keller conducted the structural and geotechnical remediation program using limited access equipment with no major distress to the historic property and its structures.
Power
Four Corners CCR Impoundment
Four Corners Generating Station needed to increase the capacity of its CCR impoundment for a number of reasons. Keller installed wick drains to provide the necessary drainage for the project.
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