Industries We Serve
Transportation
Overview
Deep experience building transportation infrastructure
Kolb Grading delivers comprehensive solutions across every facet of transportation construction: from new highway lanes and bridge repairs to railway improvements and airport upgrades. Our earthmoving, utilities, concrete, and geotechnical expertise lets us self-perform demanding scopes on the scale your project needs, putting Kolb on world-renowned projects used by hundreds of millions of travelers each year.
Proven at scale
Corridor-scale numbers
10,360,000 cy
11+ miles
500,000+ tons
What we build
Where we work in transportation
From highways and airports to railways, bridges, and tunnels, Kolb self-performs the sitework that transportation infrastructure depends on.
Highways & Roadways
Kolb’s highway portfolio spans new lanes, expansions, and complex interstate work: including Missouri DOT projects on Routes 5, 67, and 364 in Camden County, Route 5A outside Poplar Bluff, and the Route 364 partnership in St. Charles County. Bella Vista Bypass work on US Routes 71 and 72 in Arkansas expanded our reach into Indiana and beyond.
- New highway lanes & expansions
- Embankment building & subgrade stabilization
- Box culverts, piping & erosion control
- On-site aggregate manufacturing
Airports & Runways
Airport work demands extensive coordination and administration, especially during active construction. Kolb led the St. Louis Lambert International Airport expansion, clearing and preparing an 8-million-cubic-yard site, stabilizing runway foundations, and installing utility structures, a project ranked among our best.
- Runway grading & paving
- Rock subgrade stabilization
- Cast-in-place storm & sanitary structures
- Erosion control, seeding & sodding
Railroads
Kolb Grading is proficient in everything from clearing, digging, stabilizing, and grading railroad track beds to embankment construction and stabilization: including the Meramec Power Plant rail loop and the Bear Run Lead Track in Indiana.
- Track bed clearing & grading
- Embankment construction & stabilization
- Shot rock placement & compaction
- Lime stabilization
Bridges & Tunnels
Our crews bring deep experience to bridge and tunnel construction, from major thoroughfares beneath active airport runways to structures that route traffic safely through storm-water runoff.
- Substructure & pile installation
- Cast-in-place overpass structures
- Tunnel excavation & backfill
- Spillway & arched-bridge construction
Self-performed scopes
What Kolb brings to transportation
Earthwork
Mass grading, excavation, and embankment building for runways, roadbeds, and track subgrades at scale.
Asphalt & Paving
Grading and paving for runways, highway lanes, and access roads built to withstand heavy traffic.
Site Development
Complete sitework and project management for highway, airport, and rail builds, from bid to final grade.
Underground Utilities
Storm and sanitary structures, piping, and cast-in-place utility work for transportation corridors.
How we work
From ground breaking to open road.
One team carries a transportation project from first survey through the final paved surface.
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Problems we solve
Challenges we solve on transportation projects
Phased traffic & lane closures
We plan phased work and lane closures around live traffic so the corridor keeps moving while crews build.
Mass grading & haul
Modern CAT excavators, off-road haul trucks, and graders move earth at scale and keep large cut and fill operations on schedule.
Spec & DOT compliance
Gradation control, documented testing, and DOT coordination keep every lift and structure on spec and inspection-ready.
Tight schedules
Self-performed earthwork, utilities, and paving under one contract compress handoffs and protect the completion date.
Safety
Safety is a culture, not a number.
For us, safety is more than an EMR figure. It’s how every crew shows up, every day. From daily planning and hazard analysis to ongoing crew training, we build safety into the work so our people go home safe and your project stays on track.
Daily hazard analysis
Every crew plans the work and the risks before it starts.
Ongoing safety training
Continuous training keeps our people sharp and certified.
Documented compliance
Full reporting and inspection coordination on every job.
Selected work
Ground we've delivered
Lambert Airport Grading and Paving 5/6
7,500,000 cy of unclassified excavation, rock subgrade stabilization, and high-precision finish grading across hundreds of acres, St. Louis, MO.
Missouri Route 364 Design-Build
Phase 3 of the Page Avenue Extension: 3.5 million cy of excavation and more than 11 miles of new four-lane roadway, St. Charles County, MO.
Indiana US Interstate 69
10,360,000 cy of excavation, wick drains, over 500,000 tons of base rock, and box structures across three Phase 5 contracts, Indiana.
Ready to break ground?
Let's talk about your site.
Send us the plans. We’ll build the takeoff and tell you straight what the site needs.