Duval County · Northeast Florida
Drainage & Stormwater in San Marco
Grading, swales, culverts and retention that move water away from the structure instead of toward it. Licensed and insured, Florida Certified Building Contractor CBC1265492.
- Away from the structure
- Positive fallAway from the structure
- Pipe sized to real storm flow
- SizedPipe sized to real storm flow
- Seeded or sodded before we leave
- StabilizedSeeded or sodded before we leave
Drainage & Stormwater for San Marco property owners
Every drainage work job we run in San Marco gets scoped on site first. We cover the whole of San Marco: San Marco Square, the Southbank Riverwalk, and everything in between. What comes across our desk from San Marco is mostly 1920s brick and stucco homes, riverfront property and small commercial buildings.
Low-lying ground behind the river bulkhead where tidal flooding on Hendricks and the surrounding streets is a known, recurring condition. The river is close and high — finished-floor elevation and backflow protection are live design issues, not paperwork. Those two facts explain most of the difference between a San Marco estimate and one from an hour inland.
Why drainage & stormwater works differently in San Marco
Drainage in San Marco runs into infrastructure that predates the density it now serves. Low-lying ground behind the river bulkhead where tidal flooding on Hendricks and the surrounding streets is a known, recurring condition. That means a trench crosses buried utilities, old foundations and prior work nobody documented. Street-side ditches and inlets in the older neighborhoods were sized for a different era, so during a heavy storm the public system is already full when your yard needs it to take water. City floodplain rules that trigger substantial-improvement review once a renovation passes a value threshold.
One more condition that shapes the work here: compact 1920s masonry houses on small lots, where additions have to go up or back rather than sideways. So what fits San Marco is not automatically what fits the next community over.
The issuing office is City of Jacksonville Building Inspection Division. Sorting that out early is unglamorous and it is where schedules are won.
What that adds up to is a drainage work approach built around San Marco specifically: the site investigated before the design commits, materials chosen for the conditions they'll actually live in, and a schedule that reflects the real permitting timeline rather than an optimistic one.
What drainage & stormwater in San Marco covers
- Survey and flow mapping
- Grading and swales
- French drains and subsurface systems
- Culverts and driveway crossings
- Roof water routing
- Retention, outfall and stabilization
Signs it's time to call
These are the things owners tell us on the first call. If more than one sounds familiar, it's worth a look.
- The drainfield area stays soggy after the rest of the yard has dried out.
- Your neighbor's water arrives on your property, or yours arrives on theirs.
How we deliver drainage & stormwater in San Marco
01
Walk it wet
02
Survey and design
03
Permitting and outfall approval
04
Earthwork
05
Pipe and structures
06
Stabilize and verify
What actually drives the cost
We won't quote a number sight unseen. These are the factors that move it, so you can see where your project is likely to land before we ever walk the property.
- Where the water can legally go
- The single biggest variable. A parcel with a ditch, easement or street inlet to discharge into is straightforward. One with nowhere to send water needs retention, and retention is volume, excavation and area.
- Permitting and outfall approval
- Tying into a public system or a district facility requires approval, and approvals have timelines that belong in the schedule rather than in the surprises.
On the ground in San Marco.
We do drainage work throughout San Marco — regrading tight urban lots, replacing failed driveway culverts, and routing roof water away from foundations on houses that never had gutters designed for it. 1920s brick and stucco homes, riverfront property and small commercial buildings surround the work.
San Marco sits in Duval County, and we cover the surrounding communities on the same trips — Jacksonville, Riverside, Avondale and Ortega are all inside our regular working radius from Keystone Heights.
- 1920s brick and stucco homes
- riverfront property
- small commercial buildings
Other work we do in San Marco
Land Clearing in San Marco
Clearing, grading, driveways and drainage that get a property ready to build on.
Learn more →Excavation in San Marco
Foundation, pond, utility and pad excavation on sites where the water table is close and the soil changes across the lot.
Learn more →Custom Home Building in San Marco
Ground-up custom homes, from land clearing through the final walkthrough, with one builder accountable the whole way.
Learn more →Drainage & Stormwater near San Marco
All areas we serve for drainage & stormwater →Drainage & Stormwater questions in San Marco
The street floods in San Marco before my yard even drains — can drainage work help?
Up to a point, and it's worth being honest about the limit. If the public system is at capacity during a storm, nothing on your lot can discharge into it. What we can do in San Marco is protect the structure — keep water off the slab, get roof water away from the foundation, and give the yard somewhere to hold it until the street catches up.
Why won't you quote drainage work in San Marco without seeing the property?
It depends on the site more than on the square footage. Low-lying ground behind the river bulkhead where tidal flooding on Hendricks and the surrounding streets is a known, recurring condition, and the river is close and high — finished-floor elevation and backflow protection are live design issues, not paperwork, both of which move the number materially in San Marco. We quote after a walkthrough, free of charge.
Do I need a permit for drainage work in San Marco?
In most cases yes, and it goes through City of Jacksonville Building Inspection Division. City floodplain rules that trigger substantial-improvement review once a renovation passes a value threshold. We pull the permits and handle the agency coordination as part of the job — you shouldn't be the one working out which office reviews what.
How soon can you start a project in San Marco?
We can usually get out to a San Marco property within a week for a walkthrough. Actual start dates depend on permitting through City of Jacksonville Building Inspection Division more than on our calendar — we'll give you a realistic timeline for your jurisdiction rather than an optimistic one.
How far do you go from Keystone Heights — does that include San Marco?
Yes, regularly. We're based in Keystone Heights and Duval County is core territory for us; Jacksonville, Riverside and Avondale are all on the same routes. (352) 478-6112 gets you a site visit.
Why does water stand in my yard when it never used to?
Usually something upstream changed — a neighbor built up their pad, a ditch silted in, a culvert collapsed, or your own landscaping slowly reversed the fall. Drainage problems are rarely spontaneous; something redirected the water, and the low spot is just where it now ends up.
Can't I just add topsoil to the low spot?
That moves the puddle rather than removing it. Water has to go somewhere, and filling the place it collects sends it to the next lowest point, sometimes the foundation. Fill only works as part of a plan that gives the water a route out.
Ready to talk about drainage & stormwater in San Marco?
Free consultations, straight answers, and one contractor accountable from the first walkthrough to the last punch item.