Driveway culverts and swale aprons in Palm Coast, to the city's detail
The strip between your driveway and the street is the city's stormwater system. We put the pipe, the mitered ends and the apron in the way Palm Coast's detail requires, pull the permit, and fix the drainage that sank the old one.
Palm Coast doesn't have storm drains on most residential streets. It has swales — the broad, shallow grass channels along the road that ITT graded in the 1970s to carry rain to the canal network — and every driveway crosses one on a culvert pipe. That makes the apron the most abused piece of concrete on the lot: it carries every wheel that turns in, it sits at the lowest point of the driveway, and it has a pipe under it that silts up, gets crushed, or has its ends buried by four decades of mowing. When the pipe stops flowing, water backs up in the swale, finds the sand under the apron, and washes it out. The apron drops, cracks at the road, and the city — which regrades swales on a rotating schedule and inspects them when a neighbor files a Palm Coast Connect case — sends a letter.
Under Municipal Code 24-159 that culvert and the swale on your frontage are yours to maintain, and any work on them is in the city's right-of-way, so it's permitted and inspected. We build to the city's residential culvert detail: pipe sized to the swale flow and set at the swale's grade line so it doesn't dam the channel, bedding and backfill compacted around it, poured mitered end sections instead of a bare pipe end that the mower will bury again, and a reinforced apron five to six inches thick with rebar that runs from the edge of pavement to the property line and ties into the driveway with a proper joint. Where the swale itself has eroded or filled, we regrade it to drain. Then we call for the inspection and hand you the paperwork.
What's included
Right-of-way permit
Palm Coast's driveway permit, pulled by a contractor registered with Building Services, with the city's inspection before the pour is buried.
Pipe at the swale grade
HDPE or concrete pipe sized to the flow and set to the swale's grade line so water keeps moving instead of ponding at your neighbor's.
Mitered end sections
Poured in place at the pipe ends — the detail that keeps the ends open, the swale mowable and the apron edges supported.
Reinforced apron
Five to six inches with rebar, from the edge of pavement to the property line, isolated from the driveway slab with an expansion joint.
Swale regraded
Silt out, erosion filled, the channel restored to drain — the fix that keeps the new apron from going the way of the old one.
Sunken apron rescue
Where the apron is sound but dropped, we foam-lift it and clear the culvert instead of replacing it — often a morning's work.
Culverts & swale aprons cost in Palm Coast, FL
| Job | Typical price | Notes |
|---|---|---|
| Culvert pipe, 15–18" HDPE, installed (20 ft) | $2,200 – $3,900 | Bedding and compacted backfill |
| Poured mitered end sections (pair) | $900 – $1,700 | To the city detail |
| Concrete apron across the swale, 5–6" reinforced | $1,500 – $3,000 | Edge of pavement to property line |
| Complete culvert + ends + apron, typical single drive | $4,500 – $8,500 | Most jobs |
| City permit and inspection handling | $250 – $450 | Plus the city's fee |
| Swale regrading (per frontage) | $450 – $1,300 | Silt out, channel restored |
| Foam-lift a sunken apron + clear the culvert | $800 – $1,900 | When the slab is sound |
These are 2026 Flagler County ranges so you can budget. Your written price is itemized — demolition and haul-off, base, thickness and steel, finish, joints, sealing, permit — and good for 30 days.
Recent work
Questions we get about culverts & swale aprons
Do I need a permit to replace my culvert or apron in Palm Coast?
Yes. The swale and the culvert are in the city's right-of-way, so replacing the pipe, the end sections or the apron needs the city's driveway permit and inspection, and only a contractor registered with Palm Coast Building Services can pull it. Clearing debris from the ends and mowing the swale are maintenance you're expected to do without one.
The city said my swale isn't draining. What do they want?
Usually that the culvert ends be cleared, erosion under the apron repaired, and nothing be filled or piped across the property line — that's the list in code section 24-159. Palm Coast regrades swales on a rotating schedule and inspects individual ones when a Palm Coast Connect case is filed, though not within five days after a rain. If the pipe is crushed, silted solid or set too high, that's a replacement, and we handle the permit.
Can I pipe the whole swale and put grass over it?
No. Filling a swale or installing a drain pipe across property lines is specifically prohibited in Palm Coast, because the swale is designed to hold and slow water, not just move it. What you can do is keep it mowed, keep the culvert ends clear, and let us regrade it so it drains without eroding under your apron.
Why did my apron drop and not the rest of the driveway?
Because the apron sits over the pipe and at the lowest point of the lot, so when the culvert stops flowing the water goes through the sand under the apron and takes it along. The rest of the driveway is on undisturbed ground that never sees standing water. Fix the drainage and the apron usually stays fixed.
How long is the driveway out of use?
The apron is poured on day two or three after the pipe goes in, and you can drive across it after seven days. We leave a stone ramp for the truck so you're not stuck in the garage for a week, and in a pinch we can stage the work so one side stays open.