Hello. Please sign in!

National Trail Surfaces Study

20. Please indicate the trail’s soil composition/type, and the depth at which it can be found (choose all that apply):

Soil composition/ type Depth

0”- 4”

Depth

5”- 8”

Depth

>8”

Depth

“Unknown”

Cemented soil

(particles are held together by a chemical agent, such as calcium carbonate)

       
Cohesive soil

(examples of cohesive soils are: clay, silty clay, sandy clay, clay loam and, in some cases, silty clay loam and sandy clay loam)

       
Dry soil

(does not exhibit visible signs of moisture content)

       
Fissured soil 

(has a tendency to break along definite planes of fracture with little resistance, or a material that exhibits open cracks)

       
Granular soil

(gravel, sand, or silt with little or no clay content)

       
Moist soil

(soil looks and feels damp)

       
Plastic soil

(allows the soil to be deformed or molded without cracking)

       
Saturated soil (voids are filled with water)        
Unknown        

Other (please  specify): 

[MORE INFO...]

*You must sign in to view [MORE INFO...]