A loading dock is a small amount of concrete with very little forgiveness. A leveler pit that is an inch too shallow, a ramp that is a few degrees too steep or an embed plate set a half inch off will each cause a problem that lasts as long as the building.
Concrete Contractors of Midland forms and places dock pits, truck ramps, depressed dock slabs and related structures for warehouses, shops, processing plants and service facilities in Midland and the surrounding Permian Basin communities. Concrete trade partners form, place and finish the concrete, and we coordinate trade partners for grading, drainage and the dock equipment itself.
The sequence is the main risk. The equipment installer, the plumber, the steel erector and concrete trade partners all touch the same few square yards, and each needs the other to finish on time. We put the sequence on one calendar and review it with all of them before forming begins.
Concrete operations and supporting trades
Concrete trade partners set forms for pits and walls, place reinforcing and embeds, place and finish concrete, cut joints and cure. Pit walls, floors and ramp slabs are small pours with exacting details, and keeping them under our own supervision keeps tolerances tight. We also keep a short list of the small items that disappear on dock jobs, such as pipe sleeves, conduit stubs and bollard sleeves, and we check them against the plumbing and electrical drawings before each pour.
We coordinate trade partners for excavation, shoring, waterproofing, drains and dock equipment. A pit often sits lower than the surrounding grade, so the excavation partner and drainage installer need to be on schedule, and the equipment supplier must deliver the right frames and angles before we place.
What changes the price of a dock
The number of doors, the pit depth, the amount of reinforcing and the embeds drive the price. A single-door dock with a simple pit is inexpensive per door compared with a row of doors with ramps, walls and drains.
Excavation and shoring conditions can change the number, especially where caliche is hard or the soil is soft. We show these items separately and carry allowances for unknown ground, so owners can compare bids line by line.
Sequencing choices affect cost too. Pouring pit floors and walls in separate placements adds forms and cure days, while a combined pour saves both but needs more precise forming. We lay out the options and the tradeoffs so the owner can choose with eyes open.
Forming, embeds and placement
We start with the equipment shop drawings, the structural drawings and the architectural dock layout, then reconcile them before forming. Pit dimensions, curb angles, leveler frames and bumper locations are checked against the dimensions the installer needs.
On pour day we verify form dimensions with a tape and a level, set embeds to a template, brace walls against concrete pressure and place in lifts so the forms do not blow out. Finishing includes slopes to drains, a nonslip surface on ramps and clean transitions to the apron. Curing begins right away, and we protect the edges until the equipment goes in.
After stripping, we measure the pit again and give the installer a short record of the as-built dimensions. If something is off, the time to find it is before the equipment arrives, not on delivery day.
Specifications and inspections
Dock structures follow structural drawings and the owner's equipment specifications. We review them against the adopted building code and the local permit office's requirements, and we raise conflicts before pricing.
Reinforcing and formwork are inspected before each placement. Where a pit holds water or crosses a drain, waterproofing and drainage details are checked as well. We schedule the inspections with the calendar and keep the work open until they pass.
Owners who depend on docks
Logistics and warehouse developers build rows of dock doors and care about throughput. Industrial and manufacturing owners need docks that match shipping patterns. Commercial developers add docks to retail and mixed-use projects where deliveries must stay out of public view.
Institutions have a different perspective. The University of Texas Permian Basin built a three-story, 105,801 square foot engineering building on its Midland campus, with completion expected in April 2019, and buildings like that need service docks that are small, clean and quiet. We adapt the dock design and the schedule to the owner, and we ask early who will use the dock, what deliveries arrive and when, so noise and traffic are managed from the first day.
Working in pits and near trailers
Open pits are fall hazards and confined work areas, and a pit can fill with water after a storm faster than a crew expects. We guard edges, provide ladders or stairs for access and keep water and loose material out of the pit. Reinforcing steel is capped where people may walk, and crews use fall protection as the work requires.
Active docks add trailer traffic. We separate the work zone, keep spotters on duty and agree with the facility on which doors stay in service. Howard County, home to Big Spring, sees common dust storms and high winds in early spring and summer, so we also plan for wind during placement and cure. Dust and grit in a pit compromise bond and finish, so we cover open pits when work stops and wash them out before the next placement.
Get a dock package priced
Send the dock layout, the equipment data and the dates you need the doors in service. We will return a scope, a pour calendar and a price. Concrete foundations for the building can be included.
Common Questions
How deep is a typical dock pit?
The pit is sized to the leveler model the owner buys and to the height of the building's floor above the apron. The installer gives us the dimensions, and we build to them. We check pit depth with a level before and after forming, and we mark the finished depth on the wall so the installer can verify it quickly on delivery day.
Why do dock slabs settle or crack?
Weak base, poor drainage and loose backfill around pit walls are common causes. We compact the base, confirm drain slopes and wait for walls to gain strength before backfilling.
Can you build ramps for truck-height access?
Yes. Ramps are formed and finished to the specified slope with a nonslip surface and clean edges. We confirm slopes against the drawings and the owner's fleet, since a ramp that works for a box truck can scrape a low trailer or a lift truck, and we raise that question before the forms are built.
What embeds do docks use?
Typical embeds include leveler frames, bumper plates and angle iron at pit edges. We set them to the installer's template and check them before the pour. Where the work ties into truck courts and dock aprons, we align elevations across both.
Can you add a dock to an existing building?
Yes, with careful sawing, shoring and phasing. We coordinate with a structural engineer, the equipment installer and the owner's operations team, and we keep the building safe during the work.
