Detention and retention pond construction that controls stormwater and meets site requirements.
Detention ponds across Round Rock do a quiet job until they do not. Between the corporate campuses off the toll road, the retail corridors along University and I-35, and established subdivisions like Forest Creek and Teravista, these basins are built to hold back runoff from a lot of rooftop and parking lot acreage. When one stops draining the way it was designed to, water backs up faster here than most property managers expect, because of what sits underneath the grass.
Round Rock sits on rocky clay over the Williamson County chalk, and that layer does not forgive a neglected basin. Slow drawdown after a storm is usually the first sign, followed by a silted forebay that is catching more sediment than it was ever shaped to hold. Bare slopes erode quickly in this soil, and once they do, volunteer trees take root on embankments that were graded clean when the subdivision or the campus was first built. A blocked outlet structure can turn a two inch rain into standing water that sits for days.
Working with Corral Bros on a detention pond starts with a site walk, not a sales pitch. We look at the inlet, the forebay, the outlet and the slopes, tell you plainly what we find, and scope the work from there, whether that is a full basin cleanout, slope stabilization, or rebuilding an outfall structure. If an engineer has a plan for the site, we build and maintain to it. If a developer is handing a finished basin to an HOA or POA, we can step in at closeout so the association inherits a system that actually works.
We're a local, family-built company that treats your Round Rock property like our own, tidy crews, clear pricing, and detention ponds that holds up to Williamson County conditions. Available as a one-time project or part of an ongoing plan.
A detention pond temporarily holds stormwater runoff and releases it slowly, so a developed site doesn't flood downstream neighbors or overwhelm storm drains. Most Central Texas commercial sites, subdivisions and larger developments are required to have detention as part of their drainage permit.
A detention pond drains down to empty between storms and is dry most of the time, while a retention pond holds a permanent pool of water. We build and maintain both, choosing the right one based on your site's soils, drainage requirements and available space.
We walk the basin with whoever manages the property, whether that is a board member, a community association manager, or an onsite facility manager, and look at the inlet, the forebay, the outlet structure and the slopes. We measure sediment depth and check drawdown signs before giving a free, no-obligation estimate. Most Round Rock sites can be scheduled within 48 hours of the call.
It depends on the age of the development and how much silt moves off the watershed in a given year, but most ponds in areas like Teravista or Forest Creek need sediment removal or outlet clearing every few years. A sudden change, like water standing longer after a storm or a forebay filling in visibly, is the real trigger, not a fixed calendar.
We coordinate access and staging with property management before equipment ever shows up, since most detention ponds here sit near parking lots, leasing offices, or HOA common areas that cannot just shut down. On retail corridors and apartment sites we schedule around peak traffic and keep work contained to the basin footprint so day to day business and resident access are not disrupted.
The rocky clay over the Williamson County chalk drains slowly to begin with, so a basin that is even partly silted in will hold water far longer than it should after a heavy rain. That same clay also sheds topsoil fast on bare slopes, which is why you see erosion scars and volunteer trees taking root on embankments that were graded years ago and never restabilized.
The biggest factors are how much sediment has to come out of the basin, whether the outlet or outfall structure is blocked or damaged, and how much slope stabilization or riprap replacement the embankments need. Site access also matters. A basin tucked behind a corporate campus with tight equipment access costs more to work than one with open approach from a service road.
Free, no-pressure estimate from a local crew. Call (737) 404-9343 or request a quote online.
