Pipe Bursting in Mahoning County

Steel-era housing, steel-era pipe

Youngstown grew fastest between 1900 and 1930, and the neighborhoods that ring downtown, from the North Side and Brier Hill to the South Side, the East Side and the West Side, were built and plumbed in that window. The lateral under one of those houses is almost always vitrified clay tile in two- or three-foot lengths, with a cast iron run under the basement and through the foundation wall. Struthers, Campbell and Lowellville, the mill towns down the Mahoning River, are the same. The post-war suburbs that took the county's growth after 1950, Boardman, Austintown, Canfield and Poland, were built with clay or bituminous-fiber laterals into the 1960s and with plastic after that.

The failure patterns follow the material. Clay joints let roots in and shift with the ground. Bituminous-fiber pipe, where it survived, goes oval and collapses. Cast iron under a slab corrodes along the bottom until it channels. Plastic cracks at the house connection or crushes under a driveway that was poured over shallow pipe.

Clay ground and big trees

Mahoning County sits on glacial clay till with a water table that rises close to the surface in the river valleys and the flats around the reservoirs. Clay holds water against the pipe, heaves with frost and settles unevenly, so offset joints and bellies are routine camera findings. The county's older streets are lined with maples, oaks and sycamores that are now seventy to a hundred years old, and the single most common thing a sewer camera finds in Mahoning County is roots at clay joints, sometimes at every joint for the length of the lateral.

Sewers and responsibility

Youngstown operates its own wastewater system, including combined sewers in the older parts of the city that carry storm and sanitary flow together; Boardman, Austintown, Canfield and the townships are served through the Mahoning County Sanitary Engineer, and the smaller cities run their own systems. In all of them the lateral from the house to the main is the property owner's responsibility, including the portion under the tree lawn and sidewalk. Repair needs a plumbing permit from the city or county, and anything in the right of way needs a separate permit and an inspection before backfill. A good contractor handles both and says so in the quote.

Which trenchless method fits a Mahoning County lateral

• Sewer pipe lining is the usual answer for clay tile with root-intruded joints that still holds its shape and slope, and for channeled cast iron under a basement floor. A cured-in-place liner installed from the cleanout seals every joint in one pass and needs no digging.
• Pipe bursting is for a collapsed section, a long belly, or a line that should be upsized. A pit at the house and a pit at the main, and the new fused polyethylene pipe follows the old alignment.
• Sectional point repair fixes a single crushed joint or a single root mass on a line that is otherwise sound.

An open trench still makes sense on a short, shallow run under open lawn. Under a driveway, a mature tree or a city sidewalk, trenchless is almost always the cheaper total job once restoration is counted.

What to expect on the day

Hydro jetting first, because a root-choked lateral cannot be inspected or lined until the pipe wall is visible. Then the camera pass with a locator marking depth and position on the lawn. Lining runs from the basement cleanout and is usually finished in a day, with the water off for a few hours during the cure. A post-repair camera pass records the finished line, and the right-of-way inspection happens before anything is closed. Keep that video.

Pipe Bursting in Mahoning County

How pipe bursting works

A steel cable is threaded through the old sewer line from a pit at one end to a pit at the other. A cone-shaped bursting head, with new high-density polyethylene pipe fused to it, is pulled through by a hydraulic unit. The head splits the old clay or cast iron outward into the soil and the new pipe follows in the same alignment at the same depth. The result is a single fused length of pipe with no joints for roots to find.

When bursting is the right call

• Collapsed sections — a liner needs a host pipe to hold its shape; a collapsed run has none.
• Bellies — a low spot that holds water stays a low spot after lining. Bursting lays new pipe on a fresh bed.
• Undersized lines — bursting can upsize a 3-inch lateral to 4 inches; lining slightly reduces diameter.
• Badly deformed pipe — Orangeburg that has flattened, or cast iron with most of its bottom gone.

What the job looks like

One pit at the house or cleanout, one at the property line or the street connection, each a few feet square. Utilities that cross within a foot or two of the sewer path are located and potholed first. The pull takes an hour or two; the whole job, including fusing, connections, inspection and backfill, is usually one day.

Permits and the street

If the downstream pit is in the sidewalk, parkway or street, a right-of-way permit and restoration to city standards are required in addition to the plumbing permit. If the connection at the main is replaced, the city inspects it before the pit closes. Confirm who is handling this before work starts.

More trenchless services in Mahoning County

Questions we hear in Mahoning County