Rail-served sites from 5 to 200 acres, with industrial buildings from 60,000 to 1,000,000 sq ft, are how Great Western Industrial Park in Windsor was described in a February 2018 OmniTRAX announcement, and that range is the one we build to: heavy slabs, tilt-wall or steel shells, truck courts and rail-side loading on parcels big enough to phase. The park is a 3,000-acre master-planned industrial park with dual rail interchanges to Union Pacific and BNSF, and we build for owners who want to use that rail access, whether for inbound bulk materials, outbound finished goods or a transload yard.
Windsor sits at 4,797 ft elevation in Larimer and Weld counties, with its main business district along State Highway 392 and a BNSF line running north of Main Street. Altitude affects the mechanical systems we coordinate: combustion equipment, boilers and fans need derating at that elevation, and we require the equipment submittals to state it. We build the structure, the site and the rail-adjacent concrete, and we verify the interfaces with the mechanical and electrical trades before they are buried.
What heavy industry has located in the park
Tenants listed at Great Western Industrial Park include Vestas, Carestream, Front Range Energy, Halliburton, Hexcel, Kodak, Cargill and Schlumberger, and a developer release in April 2015 counted about 1,500 workers at the park with about 575 new jobs planned that year. These are older figures, and tenants change, but the mix of wind equipment, chemical, energy-service and food-ingredient users shows what the land supports: heavy loads, large buildings and process utilities.
In February 2021 Vestas announced that Windsor would take over wind turbine blade production from its Brighton factory, and the town's economic development director expected about 150 added jobs in Windsor. For a builder, the relevant lesson is that production moves between facilities and buildings need to accept new equipment quickly. We design shells with generous clear heights, wide column bays and floor capacity so a change of production line does not require a new building.
Rail, haul roads and heavy slabs
The scope for a heavy industrial site goes beyond the building. We build rail spur site improvements including grading, ballast, ties coordination and crossing surfaces, and we coordinate with the railroad on clearances and inspection. Inside the site we construct heavy haul access roads with pavement sections designed for oversize loads, such as turbine components and large equipment.
Floors for heavy industry are thick and reinforced, with joints placed to match crane and vehicle paths. We survey the subgrade before the pour, check slab thickness during placement and measure flatness where the owner requires it. For equipment with dynamic loads, we design isolated foundations with the vendor's data.
Working on open Weld County ground
Open sites give room, but they also give wind, exposure and long haul distances for materials. We plan tilt-panel lifts with wind limits, stage steel and panels to reduce crane moves and install temporary bracing for the gusts common on the plains. Winter work requires heated enclosures or blankets for concrete, and we schedule placements for the milder days.
Soils vary from site to site, so we require a geotechnical report for each parcel, and for unincorporated parcels we confirm the county's foundation requirements. Weld County adopted the 2024 International Building Code for unincorporated areas effective June 15, 2026, with engineered foundation designs required for most new structures, and town parcels follow the town's own adopted code, which we confirm before submission.
Phasing a large park parcel
A 100-acre parcel is rarely built in one stroke. We organize the work in phases: site grading and utilities for the whole parcel, rail and haul roads, then the first building, with pads and utility stubs left for the next. Each phase has its own permits, its own inspection record and its own turnover so the owner can occupy and generate revenue while later phases continue.
Deliveries of steel, precast and equipment are heavy and frequent. We establish a haul route, a staging yard and a gate procedure at the beginning, and keep a log of deliveries so that the rail, the road and the site work do not conflict. Owners considering Fort Collins or Firestone for a smaller first building can phase the same way.
What separates a rail-served site from a standard one
Rail adds cost in ways a standard site does not: switch and track construction, crossing protection, railroad review fees and insurance, and wider turning radii for trucks and equipment. We separate those items in the estimate and compare them to the cost of trucking, because the economics depend on volume. An owner shipping a few loads a month may not justify a spur, while one shipping daily almost certainly does.
Our work for metals and heavy industry owners includes that comparison as a standard line, with a break-even range based on the owner's projected volumes. The structure, whether tilt-wall industrial buildings or steel, is selected on span, height, schedule and the crane loads the process requires.
Send the parcel and the volume forecast
Send the parcel, the product and shipping volumes and your target start. We will return a rail-versus-truck comparison, a phased site plan and a building scope.
Common Questions
What is Great Western Industrial Park?
It is a 3,000-acre master-planned industrial park in Windsor with dual rail interchanges to Union Pacific and BNSF, according to a February 2018 OmniTRAX announcement, with sites from 5 to 200 acres and buildings from 60,000 to 1,000,000 sq ft.
Does elevation affect industrial equipment in Windsor?
Windsor sits at 4,797 ft elevation, so combustion equipment, boilers and fans need altitude derating. We require equipment submittals to state it and check it before the equipment is ordered.
Which code applies on a Windsor parcel?
It depends on whether the parcel is in the town or in unincorporated Weld County. Weld County adopted the 2024 International Building Code for unincorporated areas effective June 15, 2026, with engineered foundations required for most new structures. We confirm the jurisdiction before submission.
Should I build a rail spur?
It depends on volume, commodity and truck alternatives. We compare spur cost, railroad fees and operations with trucking, and show a break-even range so you can decide.
How do you phase a large parcel?
We grade and install utilities for the whole parcel, then build the first building and leave pads and stubs for later phases. Each phase has its own permit and turnover.
Can a building be designed for production lines that may change?
Yes. We use generous clear heights, wide column bays, floor capacity above current needs and utility stubs to the future line locations. A shell built that way accepts new equipment without structural rework, which matters when production moves between plants. The extra cost is usually small if it is decided in preconstruction and large if it is added later.