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“Man’s heart away from Nature becomes hard.” -Standing Bear. Water is the Enemy. High volume and high velocity water must be taken into consideration in trail design Where other areas can get by with 10% grade, desert trails should aim for no more than 5-7%. Soils are Less Stable. - PowerPoint PPT Presentation
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““Man’s heart away from Man’s heart away from Nature becomes hard.”Nature becomes hard.”
-Standing Bear-Standing Bear
Water is the EnemyWater is the Enemy
High volume and high velocity water must be taken into consideration in trail design
Where other areas can get by with 10% grade, desert trails should aim for no more than 5-7%
Soils are Less StableSoils are Less Stable
• Sandy and rocky• Little clay• No organic binders• Low shear strength
Design a Design a Positive Positive
ExperienceExperience
Design For SafetyDesign For Safety
• Calming devices• Sight Lines• Appropriate
Width
Protect ResourcesProtect Resources
• Habitat• Historical/Cultural• Trails that meet
needs
Give ‘em What They Give ‘em What They Want!Want!
• Viewpoints• Loops• Places of interest
Or they will go there anyway!
Make it Fun!Make it Fun!
• Contours, turns and dips
• Variety is the spice of trails
Be ConsistentBe Consistent
• Sudden changes = bad
• Sudden changes without warning = very bad
Safety FirstSafety First
• Calming devices can be fun
• Open sight lines• Wide at beginning• Wide on steep side slopes
ConstructionConstruction
Crossing DrainagesCrossing Drainages
• Check dams above and below
• Contour into large drainages
• Cross at a right angle
Crossing Large Crossing Large DrainagesDrainages
• Build up with crib walls
• Direct flow to middle
• Downstream side higher
Rocks RockRocks Rock
MolarsMolars
• If placed by Nature they work well
• If placed by man, not so good
• If necessary, think big
• If not big, use several rocks to interlock
Crib WallsCrib Walls
• Good when bedrock or big rocks make benching impossible
• Must be stable; pass the “jump test”
• The bigger the rocks the better…
• …But sometimes smaller rocks fit better
Crib Wall ConstructionCrib Wall Construction
• On rocky side hills, let wall be above tread a few inches to hold soil
• When possible, weather side out
• Fill big to small
ArmoringArmoring
• When all else fails…
• Leave an option for stock
• Find a molar
Getting Water OffGetting Water Off
• Rolling grade dip, not so good
• Grade reversal is best
• Done properly, knicks work well
DiversionsDiversions• Why wait?
Sometimes you can take the water off before it hits the trail
OutslopeOutslope
• Aggressive is good (5-8%)
• Ankle roll test
AestheticsAesthetics
• Build with a light touch
• The desert recovers slowly
• Make a new trail look old
Aesthetics Tips 1Aesthetics Tips 1
• Take clippings out of sight, cut end away from trail
• Palo Verde branches can be put under another tree, cut end to trunk (1-2)
• Prune for a natural look• No hat racks• Rub dirt on fresh cut
Aesthetics Tips 2Aesthetics Tips 2
• Work dirt lengthwise on trail to keep it from spreading downhill from tread
• Pile dirt in middle, then broadcast (far) or cart away
• Save rocks with weathered side above trail, place strategically after tread is done
Aesthetics Tips 3Aesthetics Tips 3
• Rocks without weathered surfaces (excavated) should be out of sight
• If you mine rocks above the trail, cover holes (and slides) with weathered rocks
• After work is complete, look above and below for any construction debris, cuttings
MaintenanceMaintenance
• No trail is maintenance-free, but sustainable trails require minimal work
• Walk completed trail several times to look for potential trouble spots
• Walk after first significant rain to check performance
Thank You!!Thank You!!