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Unread 05-27-2005, 01:37 PM   #1
bulldog
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Default Trail rating system

Probably would be a good system to adopt for members on this forum when describing trail difficulty.

http://www.4x4trails.net/forums/memb...action=ratings

Rating: 1
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.

Rating: 2
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.

Rating: 3
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.

Rating: 4
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.

Rating: 5
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.

Rating: 6
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.

Rating: 7
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.

Rating: 8
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.

Rating: 9
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.

Rating: 10
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.

Last edited by bulldog; 07-13-2005 at 06:33 PM.
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Unread 08-16-2005, 04:46 PM   #2
expat
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Man that's complicated. How about this

Trail ratings - click on "Run Descriptions"

Maybe we should consider putting some form opf trial rating into each of our meetups for future reference by members and visitors to the forum.??
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Last edited by expat; 08-17-2005 at 12:05 AM.
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Unread 08-16-2005, 06:14 PM   #3
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Well maybe we can look at a 5 stage rating system, and describe vehicle requirements. The only problem is that people start putting in 3.5, etc.

I only used the 10 point system as some of the trail books I have use it. The 3 point system is too vague, as how difficult is difficult sometimes.
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Unread 07-26-2006, 11:46 PM   #4
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We probably need to figure out a specific system for ourselves. SO we can list levels of trails that are equivalent to the trucks we have and specific modifications required, also level of risk.
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Unread 07-27-2006, 08:31 AM   #5
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Quote:
Originally Posted by bulldog
We probably need to figure out a specific system for ourselves. SO we can list levels of trails that are equivalent to the trucks we have and specific modifications required, also level of risk.
You should also add the name of the trails we've done so we can compare them, eg. Diablo dropoff is equivalent to ????




(or you can just rate the trails according to what tires Joyce has on her car for that trip )
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Unread 12-08-2011, 11:54 PM   #6
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I like the detail in the 10 stage system listed. I do think it's funny it took till stage 8 before a non-stock vehicle is mentioned. I was ready to give in to "not for stock" at 9" rocks and stage 4 being that a stock 4Runner has only 9.x" ground clearance LOL. I'm probably just a lot more into damage prevention than most... been there, done that I suppose, nowadays I'd prefer to way overbuild LOL. Got sick of having a truck in pieces in the garage from wheeling damage I guess


Rating: 9
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.

That one's awesome... should read.. "If being chased by a 1500lb Brown Bear and all windows are broken in your stock 4Runner, you MIGHT have enough motivation to make it out alive. Approach all obstacles at 37 mph. Do not release throttle under any circumstances. Throw donuts from windows to distract in case vehicle breaks in half before escape is complete. Truck will not survive."
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Last edited by Bahnstoermer; 12-09-2011 at 12:03 AM.
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