Pittsburgh clay drainage needs an outlet that does not flood the walk.
A wet lawn in Wexford or the South Hills is often a downspout with nowhere legal to go. Clay perches water. A pipe that ends in the same low spot stays full and soaks the walk you just rebuilt. Eichenlaub maps a dry outlet before anyone digs.
Name the outlet before you name the drain
Stand outside after a gully washer. Watch roof water hit grade and where it sits. Garage aprons, window wells, and hillside side yards trap the last inch. Photograph the puddle and the downspouts. Write how long water stays.
Borough rules matter. You cannot push water onto the sidewalk as a plan. Confirm a legal discharge before materials show up. Pair this with design so new walls do not create a new dam. See our article on choosing a rain garden or buried drain by water path when both options are on the table.
Clay, slopes, and irrigation lie to a short trench
Western Pennsylvania clay does not perk like a brochure. A dry well in saturated clay fills and stays full. Hillside lots add speed. Water that looks calm at the downspout can sheet across a walk twenty feet away.
Check irrigation overlap. A zone that soaks the same corner every morning will look like a drainage failure. A patio that already sheds water is an asset. Do not rebuild it just to hide a pipe. Browse the portfolio for outdoor living work where grade and outlets were planned together.
Keep the neighbor's walk out of the scope
Moving water off your patio onto their foundation is not success. The plan should name the outlet, the fall, and restoration on your lot only. A larger street-grade problem needs a different conversation. Eichenlaub will not pretend a bed drain solves that.
Build and maintenance should share the outlet note so later crews do not bury it. Send storm photos and downspout locations. Call (412) 767-4769 or contact us. More notes live in our articles.