USGS with Ohio DOT
![USGS with DOT](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/media/images/Screenshot%202022-02-16%20105210.png?itok=Lt2G0U4Q)
Detailed Description
The soil amendments consisted of a mixture of compost plus sand or compost plus expanded shale that were rototilled into the existing soil to depths of 4 or 6 inches. The amended soils were then topped with a compost blanket, seeded, and covered with erosion-control matting
Sources/Usage
Public Domain.