Driveways and Local Roads Flashcards

1
Q

You should check “Yes” to “Construct driveways and local roads across the slope to reduce the angle of incline. Place drainage ditch on the upslope side.” when what problem is marked on your card?

A

Slopes greater than 6 percent

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2
Q

You should check “Yes” to “Elevate driveways and local roads above the anticipated high water level” when what problem is marked on your card?

A

Flood plains

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3
Q

You should check “Yes” to “Costly measures are needed to reduce the hazard of slippage or subsidence” when what problem is marked on your card?

A

Soils subject to slippage or subsidence

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4
Q

You should check “Yes” to “Replace the surface soil and/or subsoil with suitable base material to prevent damage due to low soil strength” when what problem is marked on your card?

A

Any of the following are present:

Medium textured soil in any layer
Moderately fine textured soil in the surface
Single grained and granular structure in the subsoil

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5
Q

You should check “Yes” to “Surface and/or subsurface drainage is needed to reduce wetness and increase soil strength” when what problem is marked on your card?

A

Seasonal high water table within a depth of 16 inches

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6
Q

You should check “Yes” to “Costly measures are needed for excavating, filling, and grading roadbeds and driveways” when what problem is marked on your card?

A

Bedrock within a depth of 40 inches

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7
Q

You should check “Yes” to “Good site; limitations are easy to overcome” when what problem is marked on your card?

A

No moderate or severe limitations

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