Attachment 2608Our 45 acre ranch is at the end of a private, steep, curvy, 5 mile gravel road that goes from sea level to 1800' elevation in 5 miles. We (the HOA) spend about $15,000 each year on grading, culvert replacement, and other general road work. We have one of the best private ranch roads in the area. A few years ago, we started using a product called Permazyme, which is enzyme based. The enzyme causes the the fines to bond together and create a rock-like base. It comes in a concentrated liquid which is diluted with 3,000 gallons of water in a water truck, and then spread on a scarified section of roadway, then compacted with a roller. Our test sections have held up extremely well, with a minimum of "washboarding" compared to non treated areas. It's expensive, total cost including the contractors work, about $3,000/mile, but well worth it. Something to consider.