Excavation and removal of built-up sediment to restore a detention pond's designed storage, drainage performance and access.
Canyon Lake has grown out in waves, from older lakeside cabins around Startzville to newer subdivisions climbing the slopes in Mystic Shores and Canyon Lake Hills, and the detention ponds built to serve them are aging at different rates. A basin put in fifteen years ago for an older lake community often shows different wear than one built last year for a new hillside phase, but sediment finds its way into both.
The ground here does not help. Shallow soil sitting on rock means rain does not soak in so much as run off, carrying silt, gravel, and construction grit straight downhill into whatever basin catches it. We see slow drawdown after storms, forebays that have gone from a few feet deep to a few inches, bare embankments losing their grass cover, and volunteer trees rooting into accumulated muck along the banks. A blocked or half-buried outlet structure is common too, especially on ponds that have not been checked since the original construction crew left.
Working with Corral Bros on this scope starts with a site walk and a straight answer about what is actually in the basin. We survey sediment depth, excavate and haul it off, restore the pond to its design grade, and clean out the forebay and outlet so the system drains the way it was built to. If an engineer is attached to the property, we work alongside their plan rather than around it. You get a property that drains correctly again and one less liability sitting on your inspection list.
We're a local, family-built company that treats your Canyon Lake property like our own, tidy crews, clear pricing, and detention pond sediment removal that holds up to Comal 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, and walk the basin with whoever manages the property, often the HOA board member or the community association manager. We check sediment depth at the forebay and main pool, look at the outlet structure, and note slope condition on the embankments. You get a clear scope and price before anything is scheduled, no obligation to move forward.
It depends on the watershed above it, but lakeside and hillside developments on Hill Country slopes tend to silt in faster than flat-ground sites. A pond serving newer construction or a steep rocky drainage area may need attention every few years. Slow drawdown after storms, a visibly shrinking forebay, or standing water that used to drain are the signs that it is due.
We coordinate timing with property management or the board ahead of the work, including which access points and drive lanes we will use for hauling. Most detention pond work happens away from occupied buildings and parking areas, but on tighter retail or apartment sites we plan equipment staging and truck routes so daily traffic is not disrupted.
Shallow Hill Country soil sheds sediment fast once slopes are disturbed, and heavy rain events push that material straight into the basin. We regularly find silted forebays, bare or eroding embankments, and volunteer trees taking root in the banks where sediment has built up enough to support them. Rocky terrain also means outlet structures catch more debris than they would on flatter sites.
The main factors are how much sediment has to come out, how far it has to travel to the removal point, and site access for equipment and hauling trucks. A pond with a silted forebay and a clear access road costs less to clean than one buried in a steep, rocky lot with limited truck access. We confirm all of this during the site walk before quoting.
Free, no-pressure estimate from a local crew. Call (737) 404-9343 or request a quote online.
