How to Build a Stone Culvert

Learn how to build a stone culvert with dry-stacked and flared wing walls to divert water.

| January 28, 2014

Learn techniques for building functional and beautiful stoneworks that will last for ages with The Complete Guide to Stonescaping (Lark Crafts, 2013). With easy to follow instructions and hundreds of breathtaking photos David Reed shares stone projects to turn any yard or garden into a retreat. In the following excerpt, Reed outlines how to build a stone culvert under a driveway that crosses a creek or stream. 

Purchase this book from the MOTHER EARTH NEWS store: The Complete Guide to Stonescaping.

Reworking a Creek Culvert

Many property owners with driveways that cross over creeks or streams already have culvert pipes in place. In this project, you’ll learn how to build a stone culvert with dry-stacked walls around the intake end of one of these pipes.

The 4-foot-diameter (1.2-m) culvert shown in the photo above allows a creek to run beneath my driveway. When I first moved to the property, the outflow end of the culvert — a concrete-block wall faced with stone — was still in good shape. The dry-stacked stonework at the inflow end, however, had collapsed into piles of stone on both sides of the pipe’s opening, and the slope from the driveway down to the top of the pipe was caving in. The simplest and most practical solution was to stabilize the bank by dismantling the old stonework and restacking the stone walls.

One tip before you start a similar project: Unless the creek or ditch is dry, there’s no way to avoid getting wet as you build the stone walls of a culvert! You’ll be standing right in the bed of the creek or ditch as you work. To minimize sogginess, wear a pair of tall rubber boots. Making a few walkways by placing boards just above water level will also help.

Dismantling the Old Stonework

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