Here's the Dirt on Rural Roads
Do regular maintenance on your dirt roads to keep them in tip top condition.
February/March 2002
By Hollis Walker
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Low-tech solutions often are best for assuring your country road or driveway's long, healthy life.
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Most of the time, living on a country road feels like ... well, almost heaven, as John Denver sang. But when your darling dirt lane turns into mud soup after a good rain or your ditches overflow into your fields, living on a country road can feel more like being stuck in purgatory. If it's a public road you live on, you may be literally stuck - at least until the government road grader bails you out. But if you own the road or share ownership of a road with your neighbors and it seems you're forever struggling just to keep it passable, take heart: There is a solution.
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In some parts of the country, road improvement is no longer optional. Wildfires that scorched the West have emphasized the need for better road access for fire-fighting equipment; new ordinances are mandating wider roads with better turnarounds. Environmental studies show that much freshwater pollution and soil erosion is caused by unchecked runoff from dirt roads, prompting calls for improved road construction and drainage on private as well as public byways.
You may be thinking, "Right. But I can't afford to fix the road."
That may not be the case, according to Richard Casale, district conservationist for the U.S. Department of Agriculture's Natural Resource Conservation Service, based in Capitola, California.
"There are some things that can be done to significantly improve a road and increase its longevity without having to cost an enormous amount of money," Casale said. A believer in low-tech solutions for the average homesteader, Casale also said installing expensive structures like culverts can create new problems.
"It gives you a false sense of security when you put a structure in," he said. "Every structure requires maintenance.
How to best deal with your road depends on its original construction, soil, climate, traffic and other factors. But all roads share some things in common.
Russ Lanoie, of Conway, New Hampshire, whose business includes dirt and gravel road construction and maintenance, said problems with dirt and gravel roads can be boiled down to three principles: "Drainage. Drainage. Drainage." Whether you have nits, potholes, gullies, roadside erosion, caving cutbanks or ditches that look like lakes, the root of the problem is usually in the road's inability to handle water.
The key to good drainage is to cooperate with nature, not to battle it, according to Mike Silsbee, director of the Center for Dirt and Gravel Road Studies at The Pennsylvania State University. Try to discover the natural drainage patterns of the landscape around your road and accommodate the water flow.
The most important thing you can do to encourage proper drainage on roads located on gentle terrain is to make sure that the road has a "crown" - that it is higher at the center than at its sides - so water will drain to ditches, or sheet off onto the surrounding landscape - and not stay on the road. A crown should be 1/2 to 3/4 inches high for every foot of the road's width from centerline to side, according to Lanoie. For example, a road that is 20 feet wide (10 feet from crown to either side), should have a crown 5 to 7 1/2 inches higher than the edge of the road.
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