Riverside, Illinois holds a distinction that no other Chicago suburb can match. Designed by Frederick Law Olmsted in 1869 — the same landscape architect behind Central Park in New York — it was one of the first planned communities in the United States. Riverside earned National Historic Landmark status in 1970, and its curving tree-lined streets, gas lamps, and original village greens remain largely intact today.

That history is part of what makes Riverside a desirable place to live. It is also why plumbing and sewer problems here tend to be more complex and more costly than in surrounding suburbs. When your home’s sewer infrastructure dates back to the late 1800s or early 1900s, the challenges are fundamentally different from those in a home built in the 1990s.

Why Riverside Sewer Lines Fail Differently

The original Riverside Improvement Company installed sewer and water infrastructure alongside the community’s roads and lots in 1869. According to the Village of Riverside’s own history, the community had some of the best-engineered streets and utilities of its era, including cobblestone gutters, sewers, and water lines.

But “best-engineered for 1869” means something very different than modern plumbing standards. The original sewer pipes were clay tile with mortared joints. Over 150 years, mortar deteriorates, clay cracks, and the joints separate — creating entry points for tree roots and groundwater.

And Riverside has trees. Lots of them. Olmsted’s original plan called for extensive tree plantings to create a park-like setting, and those trees — many now massive, with root systems that extend 20 to 40 feet from the trunk — are one of the primary threats to underground sewer lines.

The Most Common Sewer Problems in Riverside Homes

Root intrusion at pipe joints. This is the number one sewer issue in Riverside. The combination of mature trees and clay tile pipe with deteriorated mortar joints creates ideal conditions for root infiltration. Roots enter at the joints and grow into dense masses that trap waste and eventually block flow entirely. Our guide on how tree roots get into sewer lines covers the mechanics of this process in detail.

Pipe settlement and bellying. Riverside sits in the Des Plaines River floodplain. The soil here is subject to ongoing settlement, especially near the river. Over time, sections of sewer pipe can settle unevenly, creating low spots (called bellies) where waste and water collect. These bellied sections are breeding grounds for clogs and eventually cause the pipe to crack under the weight of saturated soil above.

Joint separation. As the ground moves — from freeze-thaw cycles, flooding, and natural settlement — rigid clay pipe joints can pull apart. Even a quarter-inch gap at a joint is enough for roots to enter and for soil to infiltrate the pipe. Once soil enters, it accelerates the deterioration of the surrounding joint.

Orangeburg pipe failure. Some Riverside homes built or remodeled in the 1940s through 1960s may have Orangeburg pipe (a bituminous fiber pipe). This material was popular because it was cheap and easy to install, but it has a lifespan of only 30 to 50 years and tends to collapse inward over time. If your Riverside home has Orangeburg, replacement is not a matter of if but when.

Corroded cast iron building drains. Inside the home, many Riverside properties still have original cast iron drain and vent pipes. Cast iron typically lasts 80 to 100 years before corrosion compromises it. For homes built before 1940, that clock has expired.

Repair Options That Respect Riverside’s Historic Character

One of the concerns Riverside homeowners have about sewer repair is the impact on their property. In a National Historic Landmark community with strict preservation standards, digging a trench across the front yard is not just a nuisance — it can be a regulatory issue.

Trenchless repair methods, including pipe lining (CIPP) and pipe bursting, allow sewer line repair and replacement with minimal surface disruption. Pipe lining requires only two small access points — one at each end of the section being repaired — rather than a full excavation. This preserves Riverside’s historic landscaping, mature trees, and driveways.

For severe cases where the line has fully collapsed or where trenchless methods are not viable, traditional excavation and replacement with modern PVC is still the most reliable long-term solution. But even then, targeted spot repairs can minimize the footprint of the work.

When to Act and When to Monitor

Not every sewer problem requires immediate repair. If a camera inspection reveals minor root intrusion at a joint, annual hydro jetting to clear the roots and maintain flow may be sufficient for years. This approach buys time and spreads the cost over a longer period.

However, if the inspection shows a collapsed section, severe bellying, or Orangeburg pipe that is deforming, waiting is a risk. These conditions tend to worsen suddenly rather than gradually, and a catastrophic failure — especially during a heavy rain event near the Des Plaines River — can result in sewage backup, property damage, and emergency repair costs that far exceed what a planned repair would have cost.

Chicago Sewer Experts provides sewer camera inspections and repair for Riverside homeowners from our office in neighboring Lyons. We understand the unique challenges of working in a historic community and approach every Riverside project with the care these homes deserve.

Concerned about your Riverside home’s sewer line? Call (708) 398-7600 for a camera inspection. We will show you exactly what is going on and give you straightforward options.