Cleaning, mowing, grading, vegetation control, debris removal and erosion repair for drainage swales, channels, ditches and culverts.

Swale, channel and culvert maintenance in Liberty Hill has a lot to do with limestone. Thin ranch soil over rock does not absorb water the way a planned stormwater system assumes it will, so the swales, ditches and culverts carrying runoff across Santa Rita Ranch, Rancho Sienna and Stonewall end up doing more work than the grading plans usually anticipate.
When a hard rain moves across the Hill Country and drops most of its volume in an hour, that water sheets off rock and compacted caliche fast. It picks up sediment on the way down and drops it right where the ground flattens out, which is usually your forebay or the mouth of a culvert. We also see bare slopes on newer embankments that never got full vegetative cover, volunteer trees seeding into channel banks within a couple of growing seasons, and culverts partly packed with silt and limestone fines that slow drawdown after every storm. None of that shows up on a drive-by. It shows up when the system is already struggling.
Working with Corral Bros on this scope starts with a walk of the actual drainage path, not just the pond. We look at swales, ditches, channels and every culvert inlet and outlet on the property, tell you what is a maintenance item and what is turning into an erosion problem, and give you a plan before anything gets touched. From there it is cleaning, mowing, grading and repair, done on a schedule that fits your board meetings, your HOA calendar or your GC closeout timeline. One point of contact, one contractor who knows the ground in Liberty Hill, no surprises halfway through.
We're a local, family-built company that treats your Liberty Hill property like our own, tidy crews, clear pricing, and swale, channel & culvert maintenance that holds up to Williamson 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 full drainage path with you, not just the pond or the retention area. That means every swale, ditch, channel and culvert on the property. You get a plain explanation of what is routine maintenance and what needs grading or erosion repair, plus a written scope before any work is scheduled.
Most properties in Santa Rita Ranch, Rancho Sienna and Stonewall need a maintenance pass once or twice a year, more often if the site is newer and slopes have not fully stabilized with vegetation. Triggers include visible silt buildup at a culvert mouth, standing water that used to drain within a day, bare or eroding embankments, and volunteer trees or brush taking hold in a channel.
We schedule around your community's traffic and access needs and coordinate timing with your manager or board ahead of the visit. Most swale and channel work happens along perimeter drainage and common-area ditches, away from parking lots and building entrances, so disruption to residents or tenants is minimal. For apartment or retail sites, we work with your on-site staff to pick times that avoid peak traffic.
Thin soil over limestone does not hold water the way engineered drainage plans often assume, so runoff moves fast and carries sediment straight into your forebays, channels and culvert openings. That means more frequent silt removal than a property with deeper soil might need, and closer attention to bare slopes, which erode quickly once a hard rain gets under thin ground cover.
The main factors are how much sediment and vegetation has built up, how many culverts and channel segments are on the property, whether grading or erosion repair is needed in addition to cleaning, and site access for equipment. A newer site with bare slopes or a property that has gone a year or more without attention generally costs more than one on a regular maintenance cycle.
Free, no-pressure estimate from a local crew. Call (737) 404-9343 or request a quote online.