Last spring I got a call from a guy in Fishers. His office parking lot had a dip around the storm drain that he'd patched three times. Each time, the asphalt would sink again within a few months. He was frustrated, throwing money at a problem that kept coming back. We pulled up the old patch, dug down, and found the real issue: the catch basin frame had settled and the concrete collar was cracked. The asphalt wasn't the problem—it was the structure underneath. That's what catch basin repair is really about, and it's why so many lot owners in Indianapolis see the same sinking spot year after year.
What a Catch Basin Does (and Why It Fails Here)
A catch basin is basically a box under the grate that catches surface water and sends it into the storm pipe. When that box shifts, or the frame around it drops, the asphalt on top can't hold up. In Indianapolis, we've got three things working against us: clay subsoil that swells and shrinks, freeze–thaw cycles that push things around, and snow plows that catch the edge of the grate every winter. Add deicing salt, and the concrete collar around a drain starts to chip and crack. Before long, you've got a sunken catch basin, a rocking grate, and a sinkhole around the drain. That's not a minor annoyance—it's a sign the base under the asphalt is failing. A simple asphalt patch around the drain might hide it for a few weeks, but the movement will come back.
Signs You Need Catch Basin Repair (Not Just a Patch)
If you walk your lot after a rain and see standing water parking lot areas that never drain, or if the asphalt near a drain has alligator cracks and a visible depression, you need a real fix. Other red flags: the grate moves when you step on it, the concrete collar is missing chunks, or there's a gap between the asphalt and the frame. A pothole forming right at the drain is a classic sign of a failed inlet. These issues mean the catch basin itself—or its support—is moving. That's when you need a storm drain inlet repair or, depending on damage, a full stormwater inlet rebuild. Ignoring it leads to bigger problems: trip hazards, water getting under the lot, and eventually a collapsed catch basin that costs way more to fix.
How We Approach Catch Basin Repair in Indianapolis
At PavementPros, we don't just slap asphalt over a moving drain. We start with a drainage inspection and repair assessment. We check the frame elevation, the condition of the concrete collar, and whether the subgrade is solid. Sometimes a catch basin adjustment is enough: we lift the frame and grate back to grade, reset them in fresh concrete, and tamp down the base. Other times the collar is too far gone and we need a concrete collar reconstruction. If the soil under the asphalt is soft, we recommend pavement base stabilization—often with geotextile fabric and a well-graded aggregate base (we've written about that here). That keeps the new asphalt from sinking again. For the asphalt patch itself, we usually prefer a cut-and-replace method over infrared asphalt when the base is compromised. Cut-and-replace lets us fix the structural issue, not just reheat the top layer. We also pay attention to where the drain meets an ADA ramp: a smooth, flush surface is non-negotiable, because a lip can catch a wheelchair wheel or a walker.
Keeping Your Lot Open During Repairs
A lot of property managers worry about shutting down their lot. We get it—you can't just close a retail parking lot for a week. That's why we phase the work. For a typical repair of this type, we saw-cut the square, remove the old asphalt, fix the base and collar, and then pave. Active work usually takes a day or two, plus cure time for the concrete collar. We set cones and barricades, and we can work overnight or in sections if daytime closure isn't possible. We've done this on busy corridors in Broad Ripple and near Fountain Square, where you can't just block every parking space. We'll give you a clear schedule before we start, and we stick to it.
What Does Catch Basin Repair Cost?
The price depends on a few things: how deep the basin is, whether we can reuse the existing grate and frame or need a drainage grate replacement, how much of the collar and base has to be rebuilt, and how thick the asphalt needs to be. If the structure itself is cracked or shifted, a manhole and inlet frame adjustment might be needed, which adds to the labor. Traffic control and site access also matter. You can read more about the role of asphalt thickness here. In most cases, a straightforward frame reset with a new collar and a small asphalt patch runs a few thousand dollars. If the basin is collapsed or the subgrade is undermined, you're looking at a bigger project. That's when replacement beats repair. A severely collapsed catch basin or recurring failures tied to bad drainage design might need a full stormwater inlet rebuild. We'll tell you if that's the case—we don't sell work you don't need.
How to Prevent Future Sinkage
After we fix your basin, a little maintenance goes a long way. Keep the grates clear of leaves and debris, especially in the fall. After a big winter storm, check for plow damage to the frame and collar—we've covered that here. Seal any cracks in the asphalt near the drain to stop water from seeping down. And if you notice a new depression forming, call us for a drainage inspection and repair before it turns into a sinkhole. In Marion County stormwater rules, you might need to coordinate with the city for certain inlet work in the right-of-way. We can help with that paperwork if needed. For curb and gutter inlet maintenance, a yearly inspection is smart, especially on older lots.
Get a Real Fix, Not Another Patch
If you've got a spot in your parking lot that keeps dipping around a drain, stop throwing cold patch at it. That's like putting a band-aid on a leaky pipe. Catch basin repair done right fixes the root cause, so your lot stays flat and drains properly for years. We work in Indianapolis and all the surrounding towns—Carmel, Fishers, Greenwood, Avon, Zionsville, you name it. Get a site visit from PavementPros and we'll give you a clear, written line-item proposal with options and a timeline. No pressure, no jargon. Just a honest look at what's going on and a plan to fix it. Request a quote here or call us anytime. Let's stop that sinking feeling.
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We walk the lot, photograph the problems, and hand you a written plan — no pressure, no obligation.
