Underground detention and stormwater control measures (SCMs) for tight sites, parking lots and developments.
Subsurface stormwater control measures in Seguin do a job that nobody sees until it stops working, moving runoff underground through chambers, vaults and pipe systems instead of an open pond. Along the Guadalupe River bottomland that runs through Starcke Park, Mill Creek and Navarro, the soil holds water longer than it looks like it should, and a subsurface system that was sized right five or ten years ago can end up undersized or clogged as the pecan canopy and root systems around it mature.
Rich river-bottom soil carries fine sediment, and that sediment settles in chambers and forebays long before anyone notices standing water at the surface. Pecan leaf litter and nut hulls wash into inlets every fall and pack against outlet control structures. Older Seguin developments built before tighter site standards often have pipe runs that were never jetted after construction, so the first heavy spring storm after a dry stretch is when a slow-draining system finally gets somebody's attention. Root intrusion from mature trees along Mill Creek and Navarro is common in older vaults too, and it is rarely visible until a camera goes down the line.
Working with Corral Bros starts with a site walk where we open access points, check drawdown time and look at what is actually moving through the system versus what the plan called for. From there we handle installation, retrofits, jetting and cleaning, and ongoing maintenance to keep the system performing to the standard your engineer or your permit requires. For property managers, HOA boards and GCs closing out a site in Seguin, that means one call instead of chasing down separate crews for inspection, cleanout and repair.
We're a local, family-built company that treats your Seguin property like our own, tidy crews, clear pricing, and subsurface stormwater control measures that holds up to Guadalupe County conditions. Available as a one-time project or part of an ongoing plan.
A subsurface stormwater control measure is used when there isn't room for a surface pond, tight commercial lots, parking areas and dense developments. The system goes underground (chambers, vaults or pipe galleries) and stores or infiltrates stormwater beneath the site, freeing up the surface for parking or building.
Yes. Subsurface SCMs accumulate sediment and debris and must be inspected, cleaned and jetted on a schedule to keep working and stay compliant. We service, clean and retrofit underground detention and infiltration systems throughout Central Texas.
We schedule a free on-site visit, usually within 48 hours of your call, and walk the system with you or your engineer's plans in hand. We open access points, check for standing water or slow drawdown, and look at inlet and outlet condition before quoting anything. You get a clear picture of what the system needs, whether that is a jetting and cleanout or a larger retrofit, before any work starts.
It depends on tree cover and soil, and Seguin's pecan-shaded, river-bottom lots tend to need more frequent cleanout than open, sandy sites. Heavy leaf and nut litter in fall, plus fine sediment from bottomland soil, both load up chambers and forebays faster than a typical subdivision. Most of the systems we see around Starcke Park and Mill Creek do well on an annual check, with jetting as sediment or root intrusion dictates.
Yes, that is most of what we plan for before we ever bring equipment on site. We stage around active parking areas, coordinate access points so traffic flow is not cut off, and time noisier work like jetting for low-occupancy hours when a board or property manager asks for it. For retail centers and apartment communities we keep the footwork small and communicate directly with whoever is managing the property day to day.
Guadalupe River bottomland holds moisture and fine sediment longer than upland soil, so subsurface systems here silt up faster and drawdown times run slower after storms. Mature pecan trees on older lots also mean more organic debris at inlets and more root intrusion risk in aging vault and pipe systems. Both factors push maintenance intervals shorter than what a newer, treeless development would need.
The biggest factors are how much sediment or debris has built up, how many access points and how far the pipe runs are, and whether we are doing straightforward jetting and cleaning versus a retrofit that involves chamber or vault repair. Root intrusion and age of the system matter too. We price it after the site walk, not before, so the number reflects what we actually find underground.
Free, no-pressure estimate from a local crew. Call (737) 404-9343 or request a quote online.
