Culvert Pipe Replacement in Potomac, MD
When the pipe under your driveway fails, the driveway follows. We handle both.
Potomac Culvert Work
Potomac sits along the Potomac River corridor in one of the most established residential areas in Montgomery County. The properties here are larger, the driveways are longer, and the drainage infrastructure underneath them has been in the ground for decades. When a culvert pipe rusts through or collapses under a Potomac driveway, the damage isn’t subtle — it’s a cave-in, a driveway you can’t drive on, and a problem that no surface repair can fix.
Most paving companies won’t touch culvert work because Montgomery County requires a permit for it. We handle culvert replacements regularly, hold pre-construction meetings with county inspectors before we break ground, and work within the county’s process from start to finish.
Culvert Pipe Replacement and Apron Rebuild for Motria on Broad Green Drive
Bedfordshire, Potomac, MD — Completed 2025
What We Found
Motria’s driveway on Broad Green Drive in Potomac’s Bedfordshire neighborhood had reached the point where she couldn’t use it at all. The culvert pipe underneath had rusted through completely, and the driveway above it had caved in — not a dip or a soft spot, but a full collapse where the pipe had given way. The old pipe had corroded to the point where there was nothing left to support the weight of the driveway and the vehicles driving over it.
What We Did
Before any work started, we held a pre-construction meeting with county Inspector Timothy Leatherman to confirm the full scope of work — pipe size, apron dimensions, and everything the county would be inspecting. That meeting happened before we ever broke ground, not after problems came up mid-job.
We saw-cut the asphalt over the failed pipe and removed it. We excavated the area, pulled the old rusted pipe, and hauled it away. We installed a new Montgomery County approved 13×17 squash pipe, 30 feet long, sized to the county standard. We rebuilt the apron at 18 by 22 feet, laid 4 inches of base asphalt — the county-required depth over a culvert pipe, more than the standard 3 inches used on a typical driveway — and power rolled with a 3- to 5-ton roller. We applied a tack coating so the two layers would bond as one structure, then machine-laid 2 inches of topping asphalt and power rolled to a smooth finish. Inspector Leatherman signed off on the completed work. One-year workmanship warranty included.
The Result
Motria can use her driveway again. What was a caved-in, impassable surface over a rusted-out pipe is now a properly rebuilt apron on a new pipe, built to Montgomery County standards and inspected by the county before completion.
New 13×17 squash pipe set in the trench — coupler joining two sections, Montgomery County standard
Flared end installed — roller and Jim Stanley truck in background, paving underway
Crew rolling fresh base asphalt on Broad Green Drive — Bedfordshire home visible, apron rebuild in progress
Why Culvert Work Requires a Specialist
Replacing a culvert pipe isn’t a standard paving job. It involves excavation, permitting, pre-construction meetings with county inspectors, pipe sizing to Montgomery County standards, base reconstruction, and repaving — all in the right sequence and all subject to county inspection before sign-off. Most paving companies avoid this work entirely. We do it regularly.
For the full technical breakdown of how culvert pipe replacement works — pipe materials, county sizing requirements, the permit process, apron dimensions, and everything else — see our Culvert Pipe Replacement service page.
For more about our residential paving work in Potomac, including driveway replacement, sealcoating, and crack repair, see our Potomac Residential page.
Own or manage a commercial property in Potomac? Visit our Montgomery County commercial page.
Why Potomac Homeowners Call Us
Same owner, same crew since 1988. Jim or Mike is on every job personally. We own our equipment, all of it — not rented by the day.
Highest rated on Google with verified reviews. Google Guaranteed, MHIC licensed, fully insured. MHIC #01-66672, on the record.
We don’t avoid the hard jobs. When your driveway has caved in over a rusted-out pipe and you need it fixed right, we’re the crew that shows up and handles it.
