Visual inspection of stormwater facilities that catches sediment buildup, erosion, blockages, overgrowth and structural damage before they become problems.

Stormwater system inspection in San Antonio is not optional paperwork, it is how you find out what a basin has been hiding since the last hard rain. Bexar County's mix of caliche-heavy soils and exposed limestone shelves does not drain the way engineers in wetter regions might assume, and a pond that looked fine on the plans can silt up, slow down, or erode out within a few seasons. We walk the facility, check what is actually happening on the ground, and tell you what we find.
Here is what that looks like in practice. Slow drawdown after a storm usually traces back to a silted forebay or a partially blocked outlet structure, both common in Stone Oak developments built on compacted caliche fill. Older in-town lots around Alamo Heights tend to show bare or thinning slopes where original vegetation never fully established on limestone-heavy soil. And on properties that have gone a season or two without attention, volunteer trees and brush take root on embankments, which is a structural problem waiting to happen, not just a mowing issue.
Working with Corral Bros on this scope is straightforward. You call, we schedule a free on-site walk, usually within 48 hours, and we go through the whole facility: forebay, slopes, outfall, structures. You get written findings and recommendations, not a vague verbal rundown, so your board, your ownership group, or the engineer of record has something to work from. We are locally owned, licensed and insured, and we handle both the inspection and the follow-up work if you want to move forward with us.
We're a local, family-built company that treats your San Antonio property like our own, tidy crews, clear pricing, and stormwater system inspection that holds up to Bexar County conditions. Available as a one-time project or part of an ongoing plan.
We schedule a free on-site visit, usually within 48 hours of your call, and walk the facility with you or your maintenance contact. We check the forebay, slopes, outlet structure, and any piping we can access, then put together findings and recommendations in writing so your board or ownership group has something concrete to act on.
Most of the Bexar County properties we work on get inspected once or twice a year, with an extra look after a hard rain event or any time drawdown seems slower than usual. Older in-town basins around Alamo Heights tend to need closer attention than newer Stone Oak facilities still under warranty, simply because of age and sediment history.
No. A stormwater inspection is a walk-through, not a dig or a haul job, so we are not blocking drive lanes or parking areas. We coordinate timing with your property manager or on-site staff and stay out of common areas during business hours when we can, which matters for retail centers and apartment communities with steady foot traffic.
Caliche soils and limestone shelves slow infiltration and push more sediment into forebays than you would see in sandier ground, so silting and slow drawdown are the two issues we find most often here. Add in volunteer trees taking root on embankments and intense rain bursts after dry stretches, and erosion on slopes shows up faster than most boards expect.
Facility size and how many structures are on site are the biggest factors, along with access, a sprawling Hill Country property with a long perimeter takes more walking time than a compact retail detention pond. Condition matters too: heavy overgrowth, visible erosion, or a facility that has never been inspected usually means more time on foot before we can give you solid recommendations.
Free, no-pressure estimate from a local crew. Call (737) 404-9343 or request a quote online.