Drainage & French Drains in Mullica Hill, NJ

Old field ditches that stopped working

Farmland here drained by way of swales and ditches cut decades ago for agriculture. As land was developed, many of those ditches were partly filled, crossed by driveways or simply left to silt in. Water that used to run through them now backs up where homes were built.

Restoring an old drainage path — re-cutting it to a continuous fall and clearing its outlet — is often more effective than building something new.

One lot catching a whole field

The land rolls gently, which helps water move. But when a whole former field drains toward one low point and that low point is now someone's back yard, it collects water from a far larger area than the lot itself. Those properties need drainage designed for the full catchment, not just the rain that falls on the lot.

We walk beyond the property line to see where the water is really coming from.

Wetter ground near Raccoon Creek

Toward the Raccoon Creek corridor the ground is lower and wetter, and wetland margins are a genuine constraint. Discharging toward a wetland or working inside a buffer can require additional review, so we check early and keep equipment out of protected ground.

French drains for clay

In clay, a French drain works by giving trapped water an easier path than the soil around it: a fabric-lined trench of clean stone with perforated pipe at a continuous fall to an outlet. The fabric keeps silt out of the stone, and the pipe must keep falling the whole way. We set grade with a laser.

Dry wells rarely work here

Clay doesn't absorb water, so dry wells in most of the township fill and stay full. Drainage usually needs to daylight at a lower point, connect to a restored swale, or reach another outlet the township allows. We design the outlet first.

Big lots, long driveways, outbuildings

Newer homes on one- to five-acre parcels have long driveways, pads and outbuildings that shed water in concentrated streams. Downspout lines from every roof, swales or trench drains beside long drives, and graded pads keep that water moving to the outlet. Any concrete we cross is restored by our own crew.

Septic fields and wells

Many older rural parcels use septic and a private well. Roof and yard water must never be sent into or across a septic disposal field, and drainage lines need sensible separation from the well. Tank, field and well are all found and marked before a drainage route is drawn.

Historic homes on Main Street

The village along Main Street has 18th- and 19th-century buildings with stone foundations on tight frontages. Drainage there is careful, small-scale work: keeping roof water off old walls, regrading by hand, and lifting and resetting historic paving rather than breaking it.

Working in wet clay

Clay trenches hold water after rain and backfill settles if it isn't compacted in lifts. We schedule around wet stretches when the job allows and bed pipe in a firm, dry trench so it holds its fall.

Ground water or sewage?

Clear water seeping into a basement is drainage. Sewage backing up is a sewer or septic line problem and needs fast attention.

Maintenance on large-lot systems

Drainage on a big property is a system, and it lasts longest with light care. We install cleanouts along long runs so silt can be flushed out, and we mark outlets and restored ditches so mowing crews and landscapers don't fill them in. Ditches should be kept free of brush and debris, and gutters on every building kept clear so roof water reaches the pipe. After the first few heavy storms, a walk to the outlet confirms everything is moving.

What a finished job looks like

At the end of the job, trenches across the lot are closed in compacted layers and the fields and lawn are shaped back to their new fall. Restored ditches are stabilized so they hold their shape, downspout lines from every building end at a proper outlet, and concrete we cut is restored. After the next heavy rain, water should leave the lot within hours.

Utilities

In served areas, New Jersey American Water provides water and the Harrison Township Sewer Utility provides sewer; elsewhere, wells and septic are common. We have public utilities marked and locate private lines before trenching.