| Road Rating |
Description |
| 1 |
|
Easy |
Graded dirt road. Dry, or less than 3" water crossing depth.
Gentle grades. 2WD under all conditions except snow. No width
problems, two vehicles wide.
|
|
| 2 |
|
Easy |
Dirt road. Dry, or less than 3" water crossing depth. Some ruts.
Slight grades, up to 10 degrees. 2WD under most conditions. Rain
or snow may make 4WD necessary. Usually one and a half to two
vehicles wide.
|
|
| 3 |
|
Easy |
Dirt road. Rutted, washes, or gulches. Water crossings up to 6"
depth. Passable mud. Grades up to 10 degrees. Small rocks or
holes. 4WD recommended but 2WD possible under good conditions
and with adequate ground clearance and skill. No width problems
for any normal vehicle. Vehicle passing spots frequently
available if less than two vehicles wide.
|
|
| 4 |
|
Easy |
Rutted and/or rocky road. No shelves but rocks to 9". Water
crossings usually less than hub deep. Passable mud. Grades
moderate, up to 15 degrees. Side hill moderate up to 15 degrees.
4WD under most conditions. No width problems, vehicle passing
spots frequently available if less than two vehicles wide.
|
|
| 5 |
|
Moderate |
Rutted and/or rocky road. No shelves. Rocks up to 12" and water
crossings up to 12" with possible currents. Passable mud.
Moderate grades to 15 degrees. 6" holes. Side hill to 20
degrees. 4WD required. No width problems.
|
|
| 6 |
|
Moderate |
Quite rocky or deep ruts. Rocks to 12" and frequent. Water
crossings may exceed hub depth with strong currents. Shelves to
6". Mud may require checking before proceeding. Moderate grades
to 20 degrees. Sidehill may approach 30 degrees. 4WD necessary
and second attempts may be required with stock vehicles. Caution
may be required with wider vehicles.
|
|
| 7 |
|
Moderate |
Rocks frequent and large, 12" and may exceed hub height. Holes
frequent or deep (12"). Shelves to 9". Mud 8" deep and may be
present on uphill sections. Grades to 25 degrees and sidehill to
30 degrees. Water crossings to 18" and may have strong currents.
1-1/2 vehicles wide. 4WD required. Driver experience helpful.
|
|
| 8 |
|
Difficult |
Heavy rock and/or severe ruts. Rocks exceeding hub height
frequent. Shelves to 12". Deep mud or uphill mud sections. Steep
grades to 25 degrees and can be loose or rocky. Water crossings
may exceed 30" in depth. Side hill to 30 degrees. One vehicle
wide. Body damage possible. Experience needed. Vehicle
Modifications helpful.
|
|
| 9 |
|
Difficult |
Severe rock over 15". Frequent deep holes over 15". Shelves over
15". Mud bog conditions (long, deep, no form bottom). Over 30"
water crossings with strong currents. Steep grades over 30
degrees. Sidehill over 30 degrees. May not be passable by stock
vehicles. Experience essential. Body damage, mechanical
breakdown, rollover probable. Extreme caution required.
|
|
| 10 |
 |
Extreme |
Severe conditions. Extreme caution recommended. Impassable by
stock vehicles. Winching required. Trail building necessary. May
be impassable. Impassable under anything but ideal conditions.
Vehicle damage probable. Personal injury possible. Extreme
caution necessary.
|
