Concrete in Ladson — three counties and the epicenter of the 2021 quake
Ladson straddles Charleston, Berkeley and Dorchester Counties, so the permit depends on which side of which line you're on — and the September 2021 earthquake that 2,800 people felt was centered here.
Ladson is the community along US 78, College Park Road and Dorchester Road where three counties meet — about 16,000 people, a median build year of 1990, a mix of 1970s–90s subdivisions, newer infill and the commercial strip along 78. That three-county geography is the first thing we sort out on every Ladson job: Charleston County (flood maps from January 2021), Berkeley County (free encroachment permits, pipe-at-invert, doubled fees), or Dorchester County (free encroachment permits, two feet of freeboard, driveways prohibited in easements), plus the City of North Charleston's Public Works for the parts inside its limits and SCDOT for anything fronting Dorchester Road (SC 642) or US 78. The second thing is the ground: the Middleton Place–Summerville Seismic Zone's most-felt recent event, a magnitude 3.3 on September 27, 2021 that 2,806 people reported to the USGS, was centered near Ladson, and the Town of Summerville's D2 seismic requirement reflects the same fault the Ladson houses sit over.
The work is the Lowcountry mix: builder and 1980s driveways replaced or foam-lifted, aprons permitted with the right county or with SCDOT on the state routes, patios and pads within the coverage and easement rules, and foundations for additions built to the seismic category and the flood map that apply to the lot. The soils are Goldsboro, Lynchburg and Rains with the wet winter water table, and the Quail Arbor and Tall Pines neighborhoods took the worst of the June 2024 downburst, which left plenty of cracked slabs behind.
What we do in Ladson
Three-county permit sorting
Charleston, Berkeley or Dorchester — plus North Charleston and SCDOT where they apply — confirmed from the parcel before anything is filed.
SCDOT aprons on 642 and 78
Free state encroachment permits through EPPS for driveways fronting Dorchester Road and Highway 78.
Seismic-category foundations
Addition and garage footings built to the seismic design category and the engineer's plan, over the fault that produced the 2021 quake.
Driveway replacement and leveling
1980s–2000s slabs replaced on a base or foam-lifted when sound.
Storm-damage replacements
Quail Arbor and Tall Pines slabs cracked by the 2024 downburst repoured.
Flood-map freeboard
Finished floors set to the county's rule and the current map for additions in zones.
Neighborhoods and areas we cover
- Ladson
- College Park Road corridor
- US 78 corridor
- Dorchester Road (SC 642) corridor
- Quail Arbor
- Tall Pines
- Ladson Road area
- Palmetto Commerce Parkway side
- Lincolnville border
- Sangaree border
- North Charleston line
- Summerville line
Concrete services available in Ladson
- Driveways, aprons, culverts & encroachment permits, builder driveway replacement
- Patios, pool decks, stamped concrete, pervious concrete
- Walkways, shed, RV & generator pads, foundations & additions
- Repair & leveling, removal
Questions from Ladson homeowners
How do I know which county I'm in?
Your tax bill, or the county GIS — the lines run through Ladson's neighborhoods. We check the parcel before filing anything, because the permit office, the fee and the flood map all change at the line.
Was the 2021 earthquake really centered here?
The USGS placed the September 27, 2021 magnitude 3.3 near Ladson, with 2,806 felt reports. It's part of the same Middleton Place–Summerville zone as the 1886 quake, and it's why foundations in the area are built to a seismic design category.
Whose road is Dorchester Road?
SCDOT's — SC 642 — so an apron fronting it needs the state's free encroachment permit and SCDOT's radius and grade standards. The same goes for US 78.
A storm tree cracked my driveway. Replace or repair?
Cracked through, replace; cracked at one panel, that panel can be cut out and repoured. We'll look and quote both honestly.
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