Built for scale

A modern fleet. Smarter sites.

New, state-of-the-art, well-maintained equipment and the technology to self-perform the whole site: accurately, safely, and on schedule, anywhere in the country.

Technology

The Kolb tech advantage

Kolb was an early adopter of GPS in heavy civil, and we have kept investing since. Our technology guides the fleet, feeds crews real-time data, and through ongoing training, our operators know how to read what the equipment is telling them.

GPS machine control

An early GPS adopter, Kolb runs robotic-controlled dozers, graders, and scrapers that hit grade quickly, accurately, and right the first time.

Real-time indicator controls

Live metrics from track hoes, drills, and compactors give experienced crews the data for mission-critical field decisions.

Project modeling

After award, we remap the site in 12-inch segments and load the model into our machines' GPS, guiding every pass to spec.

The fleet

Equipment categories

An extensive in-house fleet of new, state-of-the-art equipment, well maintained and growing, with new additions arriving on a regular basis.

All Services →

Owned, not rented

Our own fleet means availability and reliability on your schedule.

GPS-guided grading

Machine control across the fleet for tighter tolerances and less rework.

Maintained for uptime

A new, well-maintained fleet means greater efficiency, less downtime, and safer crews.

Scaled to the job

The right equipment mobilized wherever the work is, at any size.

Excavators and Track Hoes

From micro excavators for tight utility work to full-size CAT excavators for mass excavation, with indicator controls feeding real-time metrics to operators.

Dozers, Graders, and Scrapers

Robotic-controlled and GPS-guided, cutting and holding fine grade directly from the site model, no staking required.

GPS Rock Drills

An early Kolb adoption of GPS connectivity, delivering precision control on every drill and blast pattern.

Vermeer T1255 Trencher

A specialized machine that handles HDPE pipeline installation, rock trenching, and surface mining work that would normally require multiple machines and crews.

Haul Trucks

Off-road OTR trucks for mass excavation plus on-road dump trucks for material import, export, and site logistics.

Compaction Equipment

Indicator-controlled compactors and rollers with live feedback to hit density spec on subgrade, base, and asphalt.

Backhoes and Skid Steers

Versatile support machines for utility work, finish grading, and confined spaces.

Cranes and Forklifts

Lifting and material handling for structures, liner systems, pipe, and laydown yards.

Go Deeper

More About Us

Our Story

History

Three generations, from a local grading outfit to a nationwide contractor, told on a timeline.

View Our History →

Our commitment

SAfety

The training, equipment, and daily practices that send every crew home the way they came to work.

Our safety program →