Occupied plants inside Denver's inner beltway need a builder who can tie new work into live production without costing the owner uptime, and that is the work we plan first in the city: dock retrofits, equipment pads, tenant improvements and shell additions where the operating constraint is the shutdown window, not the general contractor's convenience. We write each outage into the baseline schedule, price the tie-in as its own line, and keep a change control log that survives from submittal to turnover package.
Truck routing sets much of what is practical here. The Mousetrap, where I-70 meets I-25, was rebuilt in phases starting in 1987 with the last bridge dedicated in 2003, and I-70, I-25 and I-225 together form an inner beltway around the city. A site with a short run to that ring can take steel, precast and rigging deliveries in tight windows that an arterial-only site cannot, so we review the haul route before we price the work.
The east side has a newly finished corridor to plan around. The Central 70 Project rebuilt about 10 miles of I-70 between Brighton Boulevard and Chambers Road for $1.2 billion, finished construction in July 2023, and added one express lane in each direction. For an owner in the north Denver industrial areas along that stretch, we can plan oversize loads against a completed roadway instead of an open work zone.
Denver code transition and the permit set
Denver adopted new building and fire codes on June 13, 2025, based on the 2024 International Building Code, with a transition period of about six months during which the 2022 or 2025 Denver Building Code could be used. On any project that was in design across that transition, our first submittal question to the city is which edition the permit set will be reviewed under. The answer drives structural loads, fire-protection design and energy compliance, and changing it mid-review costs weeks.
Colorado adopts commercial codes city by city, so we do not carry an edition over from a suburban project. We confirm amendments with Denver's building department at kickoff, route the fire-protection and fire-alarm submittals to the reviewer who handles the adopted fire code, and track every comment through our permitting and entitlements coordination log so the owner can see which comments are open on any given day.
Hail, snow and the South Platte valley
Denver sits at an official elevation of 5,280 feet, ranks 10th among U.S. areas of at least 50,000 people for hailstorm risk, and has had three of the ten costliest U.S. hailstorms (July 1990, July 2009, May 2017). We treat hail as a specification item. Roof membranes and metal panels get a stated hail rating at submittal, rooftop units get screens or cages where the equipment allows, and skylights and translucent wall panels are reviewed for impact exposure before they go on the drawings.
The city averages about 49 to 54 inches of snow per year depending on the station and period, and it lies in the South Platte River valley where Cherry Creek meets the South Platte. That combination puts snow load, roof drainage and shallow groundwater on the same checklist. We confirm floodplain status and groundwater depth with the geotechnical report, assume expansive claystone until the borings say otherwise, and size detention and drainage before the building footprint is fixed.
What we place and erect in the city
We schedule and inspect the concrete trade partners on industrial floors with a stated flatness target, joint layout and curing plan agreed before the first pour, and we verify slab flatness with measured readings instead of relying on a visual check. The same crews set equipment pads and anchor bolts to the machinery vendor's template, which matters on retrofit work where a missed bolt pattern stops a line restart.
On the steel side we erect framing for mezzanines, crane rails and new bays through our structural steel erection scope, and we coordinate the electrical duct bank and utility interconnect with the serving utility early because those lead times set the commissioning date more often than the building does.
Sequencing around production
We build the schedule backward from the outage. If the owner can give us a 72 hour shutdown window, every prefabricated element, test and inspection that must land inside it is identified in preconstruction, and the work outside the window is released first. Phased construction on occupied sites works only when the cut-in, energization and verification steps are written with the plant's maintenance lead, so we hold that meeting before notice to proceed.
Long-lead items such as switchgear, dock equipment and rooftop units are tracked in a procurement register from award. If a delivery date moves, the register shows which tie-in moves with it, and the owner decides through change control whether to shift the outage or expedite.
Buildings we deliver in Denver
In the city we are most often asked for warehouse additions, flex and light industrial buildouts, cross-dock terminals and support buildings for manufacturers already operating on site. Each has a different tolerance profile: a cross-dock cares about dock-door elevations and apron slope, a flex building cares about demising walls and tenant utility metering, and an advanced manufacturing tenant cares about vibration and cleanliness during the build.
We state those tolerances in the scope before pricing so that the owner can compare bids on the same basis, and we close each project with a turnover package covering as-builts, test records, warranty documents and the commissioning report.
Send the drawings and the outage calendar
Send us the drawings, the shutdown calendar and the permit status, and we will return a sequenced schedule with the tie-ins and long-lead items called out. If your facility falls in one of the nearby east side submarkets, we can compare haul routes for both.
Common Questions
Which code edition applies to a Denver permit set submitted now?
Denver adopted new building and fire codes on June 13, 2025, based on the 2024 International Building Code, with a transition of about six months during which the 2022 or 2025 Denver Building Code could be used. Confirm the edition with the city before the design team locks structural and fire-protection criteria, because the transition period dates determine your choice. We document the answer in the first design meeting.
How do you handle hail exposure on a new roof?
We call for a stated hail rating on the membrane or metal panel at submittal and review rooftop equipment for screens or cages. The city is exposed to severe hail, so insurance carriers often care about the rating too. We bring the owner's risk manager into the submittal review before the roof package is released.
Can you work inside a running plant without a full shutdown?
Usually, if the tie-ins are isolated and scheduled. We separate the work into pieces that can be built outside the footprint of production, and pieces that need an outage. The outage pieces are prefabricated, tested in advance where possible and sequenced with the plant's maintenance lead. See our approach to industrial renovations and modernization.
What affects ground conditions on Denver sites near the creek and river?
Shallow groundwater and floodplain status are the first checks, followed by fill and expansive claystone. The geotechnical report drives whether we use drilled piers, over-excavation or a structural slab. We want the report before the layout is final, since it can change the building location.