f.Drawings.pdf

Stump Position Side Slope Uphill

Downhill

Stumps between the trailway and clearing limits.

Side slope less than or=to 10%

Side slope over 10%

Side slope less than or=to 10%

Side slope over 10%

Stumps outside the clearing limits

Location Uphill Downhill

Vertical

*All heights measured on uphill side of stumps.

Trim branches trunk rather than remove

Trailbed

Trailway

Cut

Clearing Limit

Clearing Limit

Downhill

Cut All Logs

Downhill

Cut

C

L

Cut

Inches Inches

Remove all trees inches or less in diameter if they are within feet of centerline (both sides).

Do not remove trees over inches diameter if they are over feet from the centerline (both sides).

tree.

Uphill flush with

U S

All

All

3.5'

3.0'

10.0'

10 10

10 12

12 14

Middle Point Trail Restoration

Note: Log out includes recut of all previous cut logs not cut to spec within the clearing limits.

Amount of bench varies with % of sideslope. Outslope trailbed 3%

Trailbed

Balanced

Section

0% to 10%

Sideslope

10% to 30%

Sideslope

30% to 50%

Sideslope

Above 50%

Sideslope

Width (inches)

Trailbed

Location

Fill slope

Fill slope

Slope rounding in commom material

Slope rounding in commom material

Slope rounding in commom material

U S

All

24"

Middle Point Trail Restoration

Backslope Ratio-Vertical:Horizontal

Rock :

Common :

Ditch

Section

Minimum Clearance

Requirements inches inches inches inches

Common :

Rock :

Fill Slope Ratio-Vertical:Horizontal

U S

.75

1 1

1.5 1

1.5

P re v a il in g G ra d e

Skew top and bottom of dip

Outslope range 6%-10%.

If spill point of dip is not to daylight, construct lead-off ditch to daylight.

inches minimum inches minimum

U S

Grade break a minimum of inches above the high-water mark on both banks.

Backslope

Stream Bank

Downgrade feet

Embed rock dam into each bank a minimum distance of 12 inches.

Downgrade feet

Construct tread of gravel and small rock less than

High Water Level

S t r e a m

F l o w

Construct top of dam level.

Hand-Placed

Rock Dam.

Typical

Streambed

D o w n s tr e a m

Install stepping rocks

130 lb minimum.

3 inches in size.

Install stepping rocks on upstream

12 inches typical spacing

Embed 1/3 of rock depth.

edge of tread.

High Water Level

Embed 12 inches minimum

Hand-placed rocks, 130 lb minimum, across full width.

Key in smaller rocks.

U S

O u ts lo p e

Rock Barrier

Ditch

In slo pe

Radius point is staked at each individual site.

m a xim u m g ra d e

U p g ra d e

Approach, 5% maximum grade

Upgrade

Turn Section maximum

B a rrie r

Grade

Drain Ditch

Spill Point

Through cuts are permitted on upper sides of switchbacks

In s lo p e to o u ts lo p e tra n s itio n fe e t m in im u m

E nd

25 feet

S ta rt

Daylight

Section inches inches

Backslope, refer to trail excavation details.

Log or

U S

3-5

3-5

Compacted

Suitable Material.

inch Crown

Berm

Slough

Existing Ground

U S Middle Point Trail Restoration