A parked car in a June afternoon is an oven, and a parking structure in the same sun is a long concrete deck that expands, contracts, drains and cracks along lines the designer planned. We build parking structures for the campus, hospital, downtown and commercial owners who run out of surface lot. The work is mostly concrete and steel, which suits an industrial contractor: foundations, columns, decks, ramps and a drainage system that keeps water off the cars below.
Owners usually come to us with a count: how many stalls they need and how many they can fit on the lot. The answer depends on the ramp layout, the clear height, the structural grid and the number of levels. Each added level multiplies the stalls on the same footprint, though ramps and stairs take some of the area. That arithmetic, set against the higher cost of a structured stall, decides whether a garage or a bigger lot is the better buy.
We keep the first conversation practical. We ask about the peak demand time, the traffic that enters and exits at the same moment, who pays for parking and what the site can support under the slab.
There are two common systems. Precast concrete arrives on trucks as columns, beams and double-tee deck members and is erected by crane, with a field-placed topping on the tees. Cast-in-place post-tensioned concrete is formed and poured in place, with steel tendons stressed after the concrete cures. Precast is quick once the pieces are cast; post-tensioned work gives long clear spans and thin slabs.
Which is better depends on supply, site access and the owner's calendar. We compare both on the same plan, including crane access, delivery routes and the foundation design. For heavy columns or poor soil we use drilled pier foundations. Where deck joints meet the ramps and entries, we draw out the details with the structural engineer so expansion and control joints are located where the structure expects movement.
We build the garage in a sequence: site preparation and utilities, foundations, columns and beams, deck levels, ramps and stairs, elevators, then the finish layer. The finish layer includes joint sealants, waterproofing at the deck level where specified, floor drains and slopes, guardrails, lighting, signage and striping. Entry and exit equipment, such as gates and payment systems, is installed by the vendor under our coordination.
Concrete quality matters because the deck is exposed to sun, traffic and water. We use the specified mix, control the water-cement ratio, cure the deck carefully and test strengths. Our trade partners with experience in industrial concrete floors know how to finish a surface that is flat enough to drain and rough enough to grip.
The strongest case is the university. Fall 2025 enrollment was 23,888, with 16,076 students on the main campus, and the campus occupies a core of 900 acres next to the interchange of I-10 and I-25. A campus with that population and that much activity needs a parking system that supports events, classes and visitors, and surface lots at the edge cannot always do it. See our NMSU campus page for how we think about phased work there.
Retail is the second case. The county's indoor mall opened in 1981 with 4,500 parking spaces, and redevelopment of retail land often turns on whether the lot can be reorganized. Around Mesilla Valley Mall, the more likely project is a pad or a deck that replaces part of a lot. Hospitals, downtown Las Cruces and the airport also generate demand where land is limited.
An open parking garage, with large permanent openings on its sides, is treated differently from an enclosed one under the building code. It is a storage occupancy and, if it meets the open-garage criteria, it gets relief on fire protection and ventilation. A garage that is enclosed or has occupied space on the ground floor needs sprinklers, mechanical ventilation and a more complex fire design. The 2021 New Mexico Commercial Building Code adopts the 2021 International Building Code as amended and took effect July 14, 2023.
Electrical rules matter too, especially for electric vehicle charging. The state electrical code adopts the 2020 National Electrical Code as amended, and we plan conduit and panel capacity for chargers now even if the units are installed later. Working with utilities and power suppliers early identifies transformer needs before the deck is poured.
Cost per stall depends on levels, structural system, footprint efficiency and site. A compact, rectangular footprint with efficient ramps is the cheapest. Curved or irregular lots add cost. Added items such as elevators, architectural facades, retail at the ground level and special lighting add more.
Soils also matter. Weak or variable soil can require deeper foundations or special piers. We ask for the geotechnical report early. The owner can also reduce cost with a simple, open facade and standard modules, and with a post-tensioned system if long spans save columns. We give owners a stall-based budget that includes the site, so the comparison with a surface lot is honest.
Precast garages can go up quickly once the pieces are made, but the lead time at the plant is the schedule driver, and we reserve production early. Cast-in-place garages need curing time for each level and enough forms and crews to move up the building in a regular cycle.
In this climate, concrete placement in summer is limited to early mornings, with evaporation controls and shade, and the monsoon storms can interrupt a pour. In winter, the nights are cooler and curing is slower. We plan the calendar to reach the top deck before the heaviest storms, and we protect the open edges. Where the garage serves a hospital or an academic campus, we coordinate closures of adjacent lots in stages so people always have a place to park.
Share the site, the peak demand and the funding plan. We will compare precast and cast-in-place options and return a cost per stall with the site included.
That depends on the footprint, the ramp type and the stall size. A clean rectangular layout with ramps that double as parking is the most efficient arrangement. We run test layouts on your parcel and give you a stall count by level before design is committed.
Both work. Precast can be faster once production begins and has a factory finish. Post-tensioned cast-in-place offers longer spans and flexibility in odd shapes. We compare cost, schedule and site access for your lot.
The deck is sloped to drains, joints are sealed and the structure may receive a traffic coating or sealer. Desert storms can bring heavy bursts of rain, so drainage capacity and the discharge connection to storm sewers are checked carefully.
Yes. We plan conduit, panel space and sometimes transformer capacity so chargers can be added later without opening the deck. The number of stalls to prepare depends on the owner and the utility.
Good access from a street that can handle the traffic, a geotechnical report, available utilities for lighting and drainage and room for a crane or concrete pump. We walk the site early to check these.