sqaylth_kwum_dwgs.pdf

Clearing Limit

Sqaylth-kwum Trail #520 Reconstruction and Construction Plains Ranger District Lola National Forest.

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3/97 900-1

Do not remove trees over ~ inches diameter if they are over 3 ft from the centerline (both sides).

Remove all trees -9- inches or less in diameter if they are within -L ft of t . I centerline (both sides). Cv.t Be/ow' Jpwes [tmp

Clearing Limits (feet)

Sqaylth-kwum Trail #520 Reconstruction and Construction

C LEARING LIMITS Plains Ra~ger DistrictLola NatIOnalForest.

NOT TO SCALE

Clearing Limit Uphill

Clearing limitDownhill

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Trim branches flush with trunk rather than remove tree.

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Stump Height Requirements* (inches)

"'All heights measured on uphill side of stumps.

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Cut All Logs

4/96 911-1

Location Uphill Downhill Height

All '1 L.f 10

Stump Position Side Slope Uphill Downhill

Stumps between the Side slope less than or=to 10% b , trailway and clearing Side slope over 10% 6 6limits.

Stumps outside the Side slope less than or=to 10% " 6 clearing limits Side slope over 10% b

Plains Ranger District Lolo National Forest.

TRAILBED AND SLOPE FINISH

Slope Finish

Remove roots over '/1. inches in diameter that protrude from the backslope.

Backslope Retia Rock ~:-L-

Common -.!-:--L-

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Minimum Clearance Requirements

Ditch * Section

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For .switc.~qCks

NOT TO SCALE

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Troilbed

Trailbed Fin ish

Remove loose rock on the trailbed surface over ~ inches in the smallest dimension.

Remove or reduce embedded rock that protrudes more than L inches above the trailbed.

Fill Slo..Q.eRatio Rock l.:.L-:-L-

Common ~:--L-

: 4/96 912-2

SqayJth-kwum Trail #520 Reconstruction and Construction

Lolo National Forest.

Maintain outslope and trailbed width.

GRADE DIP

NOT TO SCALE

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Vary centerline shift as necessary to daylight spillway.

PLAN VIEW

Prevailing Grade -

~ / minimum

Jb. " minimum

LQ I ..minimum

PROFILE

4/96 912 -4

Lolo National Forest.

ROLLING DIP

NOT TO SCALE

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- Downgrade

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Edge of trail

If spilJ point of dip is not to dayfight. construct lead-off ditch to daylight.

Outslope range 37.-57..

PLAN VIEW

l- 'ft. ~If 2ft. ~) f b ft.- -4-

. . Grade - -*preVOIlmg - - - - - -~ -- ---~.. mi~imum - - ~- "6;;-minimum-'-----------------~-

PROFILE

3/02 912 -5

SqayJth-kwum Trail #520 Reconstruction and Construction

Lolo National Forest.

SHALLOW STREAM FORD AND GULLY

ROCK STRUCTURE

CROSSING

NOT TO SCALE

Embed rock dam into each bank a minimum distance of 12"

Grade break a minimum of -" above the high-water mark on both banks;

Install stepping rocks on upstream edge of tread.

spacing

High Water level

Hand-placed rocks, 130 lb.

minimum

Construct tread of gravel and small rock less than 3" in size.

PLAN VIEW

Construct

Embed 12" minimum

PROFILE - ROCK DAM

Hand,.,-Placed

Rock Dam.

Downstream- - 1/3 of rock ---=-rF' i

Typical Streambed

CROSS$ECTION

4/96 912-7

Lolo National Forest.

OUTSLOPED CLIMBING TURN

NOT TO SCALE

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Upgrade

Maintain constant grade through turn. Points of curve

Upgrade - -

Centerline of climbing turn will be FLAGGEDor 5TAKED

ON THE GROUND,

PLAN VIEW

SECTION A-A

4/96

Lolo National Forest.

TURNPI K-E -TYPE

NOT TO SCALE M:

SECTION A-A

PLAN VIEW

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Logs 6"- 8" Diameter

Crown surface 2" higher than top retainer. a" 1

SECTION

3/97 913-1

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Lolo National Forest.

SWITCHBACK

NDT TO SCALE

TYPE

Ditch 50--%-

SECTION A-A

Radius paint is stoked ot each individual site.

I -Upgrade; tranSitia.~-i5'-~i~imm! /'~~ ~~IEnd 5% maximum grade I: ~ ~f-~/!'./Y.// i'/?n N " :

%£"1~4,f%rft#"" ~",..~, "'''" ". ~ Po;,' ~/., Embankment;{f;l.7 Barner ~'\ l ;f?r.i;'?f}:~:-:;:~~fY II Daylight,r//, r///N/.'// '" .

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PLAN VIEW

4/96 914-1

Lola National Forest.

Compacted Suitable Material.

FLAT SLOPES

3/02 915-1

Lolo National Forest.

CULVERT WITHOUT HEADWALLS

NOT TO SCALE

Tread

A-l I

6" minimum cover

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A-J . Pipe bedding ~"

Headwall rocks:

2Q kg minimum 50% Jorger than 30 kg

END VIEW

t,-an .. diameter edge log t I~L"

Edge rock 45 lb. minimum

Flow

Culvert length

4/96 921-2

I

Plains Ranger District Lolo National Forest.

ROCK WATERBAR

NOT TO SCALE

Embed rock 12" minimum into bank.

Toe of Bonk

- Down Grade

Down Grade-

Extend rock 12" minimum beyond trail tread.

Excavate for outslope.

~. minimum

PERSPECTIVEVIEW

Rocks J 00 lb.

minimum

4" minimum Tread

4/96 922-1

Lolo National Fo~est.

LOG OR TREATED TIMBER WATERBAR

NOT TO SCALE

Place 100 lb.

(minimum) rock anchor beyond edge of tread.

Tread

Down Grade-

'''''''' ' -"', '---, PERSPECTIVEVIEW

Embed logs minimum 1/3 diameter, 40d Barbed or Ring Shonk Noils

Tread

Piece stoke anchor beyond edge of tread.

Log- !:!: 'minimum Diameter

LOG ANCHORS

Native Log Waterbars will be cut from Douglas fir, Larch, and Cedar trees only. Branches and bark from peeling the posts shall be scattered at least 10' away from the trail edge.

3/97 922-2

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Embed 12" minimum '"

:jr;to bank. ... ... ... .. ' '

Lolo National Forest.

ROCK RETAINING

NOT TO SCALE

WALL

Tread Tread

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~--- Embed wall 12" sides and bottom.

FRONT VIEW

Header rock

Tread 6-10% ~Outs/ope

Wall width is 24" or

1/2 the wall height whichever is grea, Prepare footing in earth or solid rock. Inslope foundation 20% to 30%.

SECTION A-A

6/96 935-1

LOCA TION

HEIGHT

( ft.)