Precast Concrete and Pipe Flatbed Transport

Who This Serves

Precast ships on a pour schedule and a crane schedule. Both are set weeks ahead and neither moves for a late truck.

• Precast concrete plants shipping structural product to jobsites on a set erection sequence
• Concrete pipe and box culvert producers running product to road and drainage projects
• Utility contractors taking manholes, vaults, and junction boxes to open trenches
• DOT and highway contractors moving girders, barrier, and deck panel on bridge work
• Site development contractors ordering catch basins, inlets, and headwalls
• Retaining wall and hardscape suppliers shipping block and panel systems
• Water and wastewater contractors running tanks, wet wells, and septic product
• 3PLs and project logistics firms who need an asset-based carrier behind a heavy civil schedule instead of a broker chasing a truck

What Ships on a Precast Flatbed

Precast is dense. Concrete runs about 150 lb per cubic foot, so the freight weighs out fast and the deck stays half empty. That is the defining feature of the commodity.

• Reinforced concrete pipe (RCP), 12 in through 96 in diameter, in 8 ft joints
• Box culvert sections, heavy and wide
• Manholes, risers, and cones, stacked on the deck
• Utility vaults and junction boxes, often over width
• Bridge girders and beams, prestressed, long and extremely heavy
• Double tees and hollowcore plank, long and wide for parking decks and structures
• Wall panels, tall, flat, and shipped on A-frames
• Barrier and median, in linear sections
• Catch basins, inlets, and headwalls
• Septic tanks, wet wells, and storage tanks
• Retaining wall block and panel
• Ductile iron and PVC pipe, lighter, often nested in bundles

Equipment

MigWay runs 48 ft and 53 ft flatbeds and step decks. Chains, binders, edge protection, dunnage, and pipe chocks are standard on precast trucks. Step decks handle tall vaults, wall panels on A-frames, and anything that breaks 8 ft 6 in of cargo height on a standard deck. Trucks are governed at 70 mph. Drop trailer service is available for plants that load on their own casting schedule.

Weight Math and Axle Loading

Precast is the one flatbed commodity where the shipper should assume the truck weighs out. Planning the load means counting pieces against a weight budget, not against deck feet.

Typical piece weights

Piece weights vary by producer, wall class, and reinforcement. Use the plant's actual shipping weights on the intake call rather than these figures, which are planning estimates only.

Why placement matters more here

A 48,000 lb payload spread across 40 ft of deck is a routine load. The same 48,000 lb concentrated in 12 ft over the trailer tandems is an axle violation at legal gross. Precast concentrates. MigWay drivers scale precast loads before leaving the plant when the freight sits in one section of the deck.

Legal weight limits

• Gross: 80,000 lb
• Single axle: 20,000 lb
• Tandem axle group: 34,000 lb
• Bridge formula: governs the spacing between axle groups, and it is what actually stops most heavy precast loads

Securement for Precast and Pipe

FMCSA 49 CFR 393.126 covers concrete pipe specifically. Other precast falls under general cargo securement in 393.100 through 393.114. Concrete does not forgive a securement mistake, because a piece that comes off the deck is measured in tons.

Pipe

Pipe rolls. That is the entire securement problem. Pipe gets chocked, wedged, or cradled so it cannot roll in any direction, then chained down through or over the run. Nested pipe in tiers needs dunnage between layers and blocking at both ends of each tier. A single loose joint on a curve takes the tier with it.

Vaults, manholes, and boxes

Heavy rectangular product needs chain through engineered lift points or over the body with edge protection at every corner. Concrete corners chew through a strap under tension, which is why chains and corner protection are standard rather than optional.

Wall panels and plank

Wall panels ship vertical on A-frames because they crack if laid flat and flexed. The A-frame is part of the securement, not just a rack. Hollowcore plank stacks flat with dunnage aligned over the bearing points, since dunnage in the wrong spot puts a bending load on a piece engineered for compression.

Re-checks

Drivers inspect securement within the first 50 miles and every 150 miles or 3 hours after that. Concrete settles into dunnage and chocks as the load runs, and chains that were tight at the plant have slack an hour later.

Primary Precast Lanes

Precast is a short-haul commodity by nature. Concrete is heavy and cheap per pound, so freight cost eats the product value fast. Most loads run inside 300 miles of the plant.

Transit Times

Crane-assisted unloading sets the appointment. If the crane is booked for a 7 a.m. window, the truck plans to that window rather than the reverse.

Rate Structure

MigWay rates are flat and all-in. Fuel and all standard charges are included. One number up front, no add-ons. Because precast runs short and heavy, most loads price against the flat figure rather than the per-mile rate.

Permits and escorts on oversize precast are quoted into the flat number before the load books. Any load delivering into Florida is $5.00 per mile, all-in.

Oversized and Permitted Loads

Large precast is permitted freight more often than not. Girders, double tees, wide vaults, and large diameter pipe all break something.

Legal limits before a permit is needed

• Width: 8 ft 6 in on the Interstate system
• Height: 13 ft 6 in in most states, 14 ft in parts of the West
• Length: varies by state; rear overhang triggers flags and lamps well before a permit
• Weight: 80,000 lb gross, 34,000 lb on a tandem group under federal bridge formula

What trips each limit

• Width: box culvert, double tees, wide vaults, 72 in and larger pipe
• Height: tall vaults, wet wells, wall panels on A-frames
• Length: bridge girders, hollowcore plank, barrier runs
• Weight: girders, large vaults, and anything the plant calls a special

Permit process

MigWay pulls state permits directly. Multi-state runs need a permit per state, and each state sets its own travel window. Several restrict oversize movement to daylight, ban it on weekends and holidays, and close specific routes during construction. Permits typically issue in 24 to 48 hours. Overweight girder permits often come with a defined route that avoids posted bridges, which can add miles to what looks like a short haul on a map.

Escorts

Pilot car thresholds are state-specific. A vault that runs clean through South Carolina may need a front escort in Pennsylvania at the same width. Dispatch maps the route against each state's rules and quotes escorts into the flat rate.

Jobsite Delivery and Crane Windows

Precast almost never delivers to a dock. It delivers to a hole in the ground, a bridge deck, or a bare slab. That changes what the truck needs to know.

• What picks it? A flatbed does not self-unload, and precast is too heavy for most site forklifts. Crane, excavator with a thumb, or a boom truck.
• When is the crane on site? The crane window is the appointment. Everything plans backward from it.
• Are there rated lift points? Most precast has cast-in inserts. The crew needs to know which ones and what they are rated for.
• Can a 70 ft tractor-trailer get in and turn? A dig site with spoil piles on both sides of the access road is a no.
• Is the ground firm and level? A loaded flatbed on fresh fill does not leave under its own power, and an unbalanced unload on a slope moves the trailer.
• Are there overheads? Low lines stop a 13 ft 6 in trailer, and a crane working under them stops the whole job.
• Erection sequence? On structural precast the pieces come off in the order the crew sets them. Load order at the plant has to match.

MigWay dispatch runs these on the intake call, not on arrival. If the site cannot take the truck, that surfaces before the plant loads it.

Operating Playbook

1. Intake and scoping: product, piece count, actual shipping weights, dimensions, erection sequence, and site access go in on the first call. Standard lead time is 12 to 24 hours. Expedited puts a truck under the load in 4 hours.
2. Deck and driver assignment: dispatch runs the weight math against axle limits and picks flatbed or step deck. Precast goes to drivers who have chained concrete.
3. Permits: if the load is over dimension or over weight, permits, routes, and escorts pull before the truck arrives.
4. Loading: driver verifies placement against axle weights, scales when the freight concentrates, sets chocks and dunnage, and applies chain securement with edge protection.
5. In transit: ELD and GPS give live tracking on every load. Securement re-checks happen at 50 miles and every 150 miles after.
6. Delivery: driver works to the crane window and the erection sequence. POD comes back the same day.

One dispatcher owns the load end to end. Zero outsourcing means the person who scoped the girder permit is the person who answers when the crane is early.

Why MigWay for Precast Freight

• Asset-based: 400 trucks and 750 trailers on the payroll, not a broker board
• Zero outsourcing: MigWay drivers on MigWay equipment, one accountable plan per load
• Flat all-in rates: fuel, standard charges, permits, and escorts in one number
• 24/7 dispatch: live people, in-house, at any hour a crane is scheduled
• Live tracking: ELD and GPS on every load
• 48-state service out of Charlotte, NC, with terminals opening in Dayton, OH and Harrisburg, PA
• Drop trailer capable for plants that load on a casting schedule
• EDI capable for producers running precast on a routing guide

Precast concrete and pipe transport by flatbed comes down to weight math, a permit that is already pulled, and a truck that hits the crane window. Call +1-980-255-3200 or reach MigWay at 9349 China Grove Church Rd, Pineville, NC 28134 to scope a load.

Frequently Asked Questions

How many joints of concrete pipe fit on one flatbed?

Weight decides it, not deck space. A 48 in RCP joint runs about 5,000 lb, so eight or nine joints gross out a truck while covering half the trailer. A 24 in joint runs about 1,500 lb, so 28 to 30 fit. Use the plant's actual shipping weights rather than planning estimates, since wall class and reinforcement change the number.

How is concrete pipe secured on a flatbed?

FMCSA 49 CFR 393.126 covers concrete pipe specifically. The core problem is rolling, so pipe gets chocked, wedged, or cradled against movement in any direction, then chained through or over the run. Nested tiers need dunnage between layers and blocking at both ends of each tier.

Do you haul bridge girders?

Yes, and nearly all of them are permitted freight. A prestressed girder can run 40,000 to over 80,000 lb by itself, which puts the load over weight before anything else. MigWay pulls state permits directly, and overweight girder permits usually come with a defined route that avoids posted bridges.

What does precast concrete transport cost?

Most precast runs short and prices against the flat all-in figure rather than the per-mile rate, starting at $1,500 for same-state and same-region moves. Longer lanes run $3.00 to $4.50 per mile depending on origin and destination. Fuel, standard charges, permits, and escorts are all inside the quoted number.

Why does precast weigh out before it fills the deck?

Concrete runs about 150 lb per cubic foot, so the freight is dense relative to its size. A load can hit the 80,000 lb gross limit across 12 ft of a 48 ft trailer. That also makes placement critical, since concentrated weight over a tandem group can be an axle violation even at legal gross.

Can you deliver precast directly to a jobsite?

Yes, and most precast does. The site needs a crane, an excavator with a thumb, or a boom truck, since a flatbed does not self-unload and precast is too heavy for most site forklifts. MigWay dispatch confirms the crane window, site access, ground conditions, and overheads on the intake call.

Do you load precast in erection sequence?

Yes. On structural precast the pieces have to come off the deck in the order the crew sets them, which means load order at the plant has to match the erection sequence. That gets set on the intake call, not at the gate. One dispatcher owns the sequence across all the loads on a project.

Flatbed or step deck for precast?

Cargo height decides. A standard flatbed leaves roughly 8 ft 6 in of legal cargo height, which covers pipe, manholes, plank, and most barrier. Tall vaults, wet wells, and wall panels on A-frames usually need a step deck, which leaves about 10 ft.

How fast can MigWay get a truck to a precast plant?

Standard lead time is 12 to 24 hours. Expedited service puts a truck under the load in 4 hours when a trench is open and a crew is waiting. Permitted oversize loads add 1 to 2 days for permit issue and daylight travel windows.

What states does MigWay cover for precast flatbed?

MigWay offers 48-state service from its Charlotte, NC headquarters, with terminals opening in Dayton, OH and Harrisburg, PA. Precast is a short-haul commodity by nature, so most volume runs inside 300 miles of the producing plant. Call +1-980-255-3200 to price a specific lane.