Driveway culverts and drainage, permitted right the first time
We file the county permit ourselves and size the pipe to what the county will actually approve, not a guess.
Culvert crossing, diagram
We handle the county permit, not just the ditch
Brazoria County requires a Driveway/Culvert Permit for any new or modified culvert on a county-maintained road, and it doesn't cost anything to file. Most homeowners lose weeks not knowing which office to call, which pipe diameter the county will actually approve, or that the county's Road and Bridge crew sets the pipe on county roads but won't come spread your base material afterward. We handle the whole chain so you don't have to learn Brazoria County's process from scratch.
Right pipe, ordered once
We walk the ditch and know what diameter reinforced concrete pipe the county will call for before their crew ever shows up, so you buy the correct pipe the first time instead of twice.
Filed with the right office
County road, city of Angleton limits, state highway frontage, or a private subdivision street each route to a different office and a different form. We know which is which.
Set so it actually drains
Flat coastal-plain clay barely absorbs water on its own. We set the pipe on true grade so the ditch keeps working after the first hard rain, not just on the day we leave.
Four jobs. No scope creep past them.
Driveway culvert install
New driveway crossing a county ditch. We size the pipe, file the permit, stage the pipe, and finish the base so it holds up under real truck traffic. See the process →
Culvert replacement
Crushed, undersized, or silted-shut pipe pulled and reset to grade, matched to the ditch it actually sits in instead of what was there before. See the process →
Ditch grading & drainage
Re-slope a silted-in roadside ditch or fix a low spot that never dries out between storms. See the process →
Site pads
Compacted building pad or driveway base built up above the flood-prone grade instead of settling into it. See the process →
Real ranges, not a guess over the phone
| Job | Typical range | What moves it |
|---|---|---|
| Driveway culvert install | $450 to $3,200 | Pipe diameter, ditch depth, county road versus private road |
| Culvert replacement | $650 to $2,800 | Pipe condition, whether a diameter upsize is needed |
| Ditch grading & drainage | $600 to $2,400 | Ditch length, silt depth, equipment access |
| Site pads | $2,200 to $9,800 | Pad size, fill height, soil conditions |
Where we run trucks
Angleton is home base. We stay inside a tight stretch of Brazoria County so we can get a truck on-site fast instead of spreading thin across the whole coast.
Angleton
Home base, Highway 35 and Highway 288 corridor
Danbury & Rosharon
FM 1462, FM 521, FM 2917
West Columbia & Sweeny
Highway 35 south, FM 524
Why culverts fail on this stretch of the coastal plain
Most of Brazoria County sits on heavy clay and loam soils, mapped as poorly drained by the USDA, which means slow infiltration and fast runoff whenever a storm comes through. The ground around Angleton, Danbury, and Rosharon is also nearly flat, so a culvert set even an inch off grade holds water for days instead of hours. Angleton itself sits behind a levee system built to hold back overflow from the Brazos River and Oyster Creek, and low spots along Ditch No. 10 north of Highway 35 are known to pond during heavy rain. None of that means every driveway is doomed. It means the pipe has to be sized to the ditch and set on true grade, not eyeballed.
What you get, and what we don't do
The grade guarantee
If a culvert or grading job we did backs up water within 90 days from a rain under 4 inches, we come reset it at no charge.
We answer, and we show up
Call and you get a person, not a call center. We're typically on-site to walk your lot within 2 business days.
Written pricing first
Every range on this site ties to pipe size, footage, or access. You see the number before we ever dig.
One limit worth saying up front: we don't build new subdivision infrastructure or storm-sewer trunk lines. Single-lot driveways, replacements, and drainage grading, that's the whole business.
Angleton driveway culvert questions
Do I really need a permit just to fix my driveway culvert?
If your driveway sits on a county-maintained road, yes. Brazoria County's Driveway/Culvert Permit covers new installs and modifications to existing ones. There's no fee to file it, but skipping it can leave you responsible for pulling and resetting the pipe on your own dime later.
Who actually sets the culvert, the county or you?
On county-maintained roads, the county's Road and Bridge crew sizes and sets the pipe at no labor charge once you've furnished the correct reinforced concrete pipe. On state highway frontage, private roads, and subdivision streets the county won't touch it, and that's where our crew does the full excavation and install.
How long does the permit take?
Once we file a complete application with a site drawing, the county typically moves in days. Crew scheduling for the actual pipe-setting work order can run longer during storm season, and we build that lead time into your quote.
What size culvert pipe do I need?
It depends on the ditch, not the driveway. County crews measure the ditch cross-section and set the required diameter, commonly 18 to 24 inches for a standard residential drive, but wider or deeper ditches call for more.
Get your driveway or ditch looked at
Tell us where the water's sitting or where you want a new driveway to cross the ditch. We'll tell you which permit applies and what it takes to fix it.
Tell us about your lot
We serve Angleton, Danbury, Rosharon, West Columbia, and Sweeny. Outside that stretch of Brazoria County we likely can't get a truck to you fast, so let us know your city below.