 |
Search: |
|
| Easy Project Calculator |
 |
|
Step 2: Determine Required Products Roads and Driveways Permits and specifications Requirements and specifications for roads and driveways are subject to jurisdiction. If you are joining your road or driveway to a county or city road, you will need a Road Approach Permit. Contact the jurisdiction in which your road or driveway will be built for more information. Terminology Roads and driveways are composed of two layers known as "base coarse" and "top course". Base coarse is the base layer of the road or driveway and top course is the top, final rock layer of the road or driveway. Ground that is soft will require larger base course. Base Course Typical base course used 3 inch minus. 6 inch minus may be required for soft ground and quarry spalls are often used to permit better draining. Top Course Typical top coarse used is 1 1/4 inch minus or 5/8 inch minus. Track rock is also common (5/8" to 1 1/4" clean). Recommendation: Soft or muddy ground Firm |
|
 |