J(F)_Drawings_RavenTrlPh2_02192019_cj.pdf

USDA FOREST SERVICE - TONGASS NATIONAL FOREST

R-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:09/04

SPECIFICATIONS

PETERSBURG RANGER DISTRICT

DJL 01/2018

DJL 01/2018

MIS 04/2018 ACAD.DWG SH. 6 of1 25

ALUMINUM MEMBER DESCRIPTION

STRINGER CS 12 x 8.27 CHANNEL

STRINGER SPLICE PLATE 3

8" PLATE

STRINGER STIFFENER CS 12 x 8.27 CHANNEL

SUPPORT POST 4 x 6 x 12 RECTANGULAR TUBE

SUPPORT POST BASE PLATE 3

8" PLATE

GUSSET PLATE 3

8" PLATE

GUSSET PLATE ANGLE 3 x 3 x 38 ANGLE

BRACING 3 x 3 x 38 SQUARE TUBE

BRACING END ANGLE 5 x 3 x 38 ANGLE

BRACING END PLATE 3

8" PLATE

STAIR TREAD LEDGER 2 x 2 x 14 ANGLE

HANDRAIL 1.5 x 1.5 x 18 SQUARE TUBE

HANDRAIL MOUNT ANGLE 3 x 3 x 38 ANGLE

HANDRAIL SPLICE INSERT 1.25 x1.25 x 18 SQUARE TUBE, ENSURE

TIGHT FIT INSIDE HANDRAIL TUBE

HANDRAIL POST 1 12 x 3 x 316 RECTANGULAR TUBE

HANDRAIL POST MOUNT 3 x 3 x 38 ANGLE

TIMBER BACKWALL MOUNT 3 x 3 x 38 ANGLE

SPECIFICATIONS:

ALUMINUM MEMBERS: PROVIDE 6061-T6 GRADE ALUMINUM, ASTM B

221. COMPLY WITH TABLE 1.

ENSURE THAT HANDRAIL AND HANDRAIL SPLICE TUBING PROVIDED IS

SIZED TO MATE TIGHTLY FOR A SNUG FIT.

FILLER ALLOY: USE FILLER ALLOY 5356, OR AN ACCEPTABLE ALTERNATE

APPROVED BY THE CO. WELDING SHALL CONFORM TO AWS D1.2.

STAIRCASE TREADS: PROVIDE "FIBERTRED" FIBERGLASS MOLDED STAIR

TREADS BY "FIBERGRATE" AS FOLLOWS: - RESIN: "CORVEX"; THICKNESS: 1

1 2" COLOR: DARK GRAY; CLIP TYPE: M-2, STAINLESS STEEL, FOUR PER

TREAD.

TREAT ALL CUT OR DRILLED AREAS WITH RESIN SEALING KIT IN

ACCORDANCE WITH MANUFACTURER'S INSTRUCTIONS.

FASTENERS: FOR BOLTS, ALL-THREAD, NUTS, AND WASHERS, PROVIDE

ASTM TYPE A325 STEEL HARDWARE (PER ASTM SPECIFICATION F3125)

UNLESS OTHERWISE NOTED. ALL HARDWARE SHALL BE HOT-DIP

GALVANIZED UNLESS OTHERWISE NOTED. USE WASHERS UNDER BOLT

HEADS AND NUTS. ALL CONNECTIONS SHALL BE SNUG-TIGHTENED.

PROVIDE BOLTS TO HAVE 14" - 58" LENGTH EXTENDING BEYOND FINISHED

NUT INSTALLATION. DO NOT CUT BOLTS TO MEET THIS REQUIREMENT.

SELF-TAPPING SCREWS TO BE TANNER ALLFLEX SELF TAPPING SCREWS,

HEAD AS SHOWN ON THE DRAWINGS, TYPE ASTM 302 STAINLESS STEEL

COATED WITH STALGARD GALVANIC BARRIER FINISH OR APPROVED

EQUAL.

INSTALL THREAD SEALANT CONTAINING TEFLON OR PTFE TO PREVENT

GALLING (NAPA/PERMATEX ANTI-SEIZE LUBRICANT, ITEM #765-1151 OR

EQUIVALENT) ON EACH NUTTED CONNECTION. FACTORY-LUBRICATED

BOLTS MEETING THE ABOVE SPECIFICATIONS MAY ALSO BE USED.

ALL BOLT HOLES (EXCEPTING THOSE FOR SELF-TAPPING SCREWS) SHALL

HAVE A DIAMETER 116" GREATER THAN THE THREAD DIAMETER OF THEIR

RESPECTIVE BOLTS.

EPOXY / MORTAR: USE EPOXY OR MORTAR ADHESIVE PRODUCT DESIGNED

FOR ANCHORING ALL-THREAD CONNECTIONS TO CONCRETE/BEDROCK.

PROVIDE SUBMITTAL FOR APPROVAL. INSTALL PER MANUFACTURER'S

RECOMMENDATIONS, INCLUDING DRILL HOLE SIZE.

TIMBER BACKWALL: USE PRESSURE-TREATED NO. 2 DOUGLAS-FIR

TIMBER RATED FOR AWPA USE CATEGORY 4B.

MASTIC: PROVIDE BITUMINOUS MATERIAL MEETING ASTM D1-187

TO ISOLATE ALUMINUM FROM CONCRETE.

CONCRETE: PROVIDE TYPE I OR TYPE II CONCRETE CONFORMING TO

THE FOLLOWING:

CEMENT CONTENT = 611 POUNDS PER CUBIC YARD MINIMUM

WATER/CEMENT RATIO = 0.45 MAXIMUM

SLUMP = 5 INCHES MAXIMUM

AIR CONTENT = 5 12% ±1 12%

COARSE AGGREGATE = AASHTO M43 WITH 100% PASSING 1.5" SIEVE

28-DAY COMPRESSIVE STRENGTH = 4500 PSI MINIMUM

DO NOT USE CALCIUM CHLORIDE OR ADMIXTURES CONTAINING CHLORIDE

FROM SOURCES OTHER THAN IMPURITIES IN ADMIXTURE INGREDIENTS.

PROVIDE ASTM A615 GR 60 STEEL REINFORCING BAR.

TABLE 1- ALUMINUM MEMBER DESCRIPTIONS

DESIGN CRITERIA:

LIVE LOAD = 90 PSF

SNOW LOAD = 65 PSF

WIND SPEED = 140 MPH

SITE CLASS = C

PGA = 0.3g

C:

\U se rs

\d jla m bs on \D es kt op \A lu m in um

S ta irs \A lu m in um

St ai rs

ST

D_

DJ

L_

.d w g, 2/

/2

3:

:2

PM

Au to

CA

D

PD

F

(G en er al

D oc um en ta tio

n) .p c3

Digitally signed by HARVEY HERGETT Date: 2019.02.08 15:53:03 -09'00'

Digitally signed by ERIC ANTRIM Date: 2019.02.08 08:02:27 -09'00'

FRANCIS SHERMAN Digitally signed by FRANCIS SHERMAN Date: 2019.02.07 16:30:04 -09'00'

JASON ANDERSON Digitally signed by JASON ANDERSON Date: 2019.02.07 16:05:07 -09'00'

LEONARD JOB, P.E. Digitally signed by LEONARD JOB, P.E.

Date: 2019.02.05 15:14:55 -09'00'

THEODORE SANDHOFER

Digitally signed by THEODORE

SANDHOFER

Date: 2019.02.05 14:29:26 -09'00'

HANDRAIL

FIBERGLASS TREAD

LEDGER 11-=F 9

LEFT

STRINGER

FRONT VIEW

SCALE: NTS

A�

RIGHT

STRINGER HANDRAIL ON LEFT

STRINGER ONLY

SEE SHEET 22

HANDRAIL POST

1 '-0" MAX.

A \

,-------2" X I 2" TIMBER BACKWALL ,,, \ J

SEE SHEET 23

-----STRINGER

_______.,.----------GU 55 ET PLATE

SEE SHEET 21

FIBERGLASS TREAD

LEDGER--------

SEE SHEET 20

9" MAX.

10' MAX.

<sfs} . \

/'---------SUPPORT POST

9½" MIN. ---j

20" MAX.

I _l

'\ \ I 'O" MAX.

TONGASS

DESIGNED: DJL

,.,x---GROUND (VARIES)

DATE:01/2018 IDATE: REVISION: BY:

SUPPORT POST FOOTING

SEE SHEET 24

STRINGER STIFFENER

ON RIGHT GIRDER ONLY

SEE SHEET 21

GROUND (VARIES)

l°RAWN, DJL

I I I �rf\i'.�� REVIEWED: M 15 ENGINEERING $ . RECREATIONTNFrYP: 09/04

DATE: 01/2018

DATE: 04/20 18

RAVEN TRAIL RECONSTRUCTION - PHASE 2

METAL STAIRCASE (TYPE MS)

USDA FOREST SERVICE - TONGASS NATIONAL FOREST

R-10 - PETERSBURG RANGER DISTRICT

SLOPE ARMORING WHERE

REQ'D TO RETAIN SLOPE

SEE SHEET 17

--INSTALL BRACES NEAR

MIDSPAN AND ON ALL

SUPPORT POST PAIRS

SEE SHEETS 20 $ 2 I

NOTES:

I . STAIR SLOPE VARIES- STAIRS

ILLUSTRATED AT 37° SLOPE FROM THE

HORIZONTAL.

2. MAXIMUM UNSUPPORTED SPAN (ALL

SLOPES): 2 I '-0".

3. MAXIMUM POST HEIGHT: I 0'-0" (SEE

SHEET 24 FOR LIMITATIONS).

4. POST HEIGHT MEASURED FROM BASE

PLATE TO TOP OF POST.

UNSPLICED STAIR ELEVATION AND SECTION

ACAD.DWG

PLOT ON I I "XI 7" PAPER SH.18of 25

C:

\U se rs

\d jla m bs on \D es kt op \A lu m in um

S ta irs \A lu m in um

St ai rs

ST

D_

DJ

L_

.d w g, 2/

/2

3:

:2

PM

Au to

CA

D

PD

F

(G en er al

D oc um en ta tio

n) .p c3

HANDRAIL h 2' f

FIBERGLASS TREAD

LEDGER 11.:P 9

LEFT

STRINGER

FRONT VIEW

SCALE: NTS

�\IO'MAX.

SIDE ELEVATION

SCALE: NTS

A�

RIGHT

STRINGER

HANDRAIL POST

SP LI CE----------...

SEE SHEET 20

�-� O,,�

,,0

1,, \

0�

DESIGNED: DJL

DRAWN: DJL

GROUND (VARIES)

DATE:01/2018 IDATE:

DATE: 01/2018

HANDRAIL

REVISION:

�\I '-0" MAX.

lt.------2" X I 2" TIMBER BACKWALL

'--------'s�--STRINGER

�GUSSET PLATE

SUPPORT POST, TYP.

SUPPORT POST

FOOTING, TYP.

SEE SHEET 24

STRINGER STIFFENER

ON RIGHT GIRDER ONLY

SEE SHEET 21

BY:

SECTION A-A

SCALE: NTS

RAVEN TRAIL RECONSTRUCTION - PHASE 2

METAL STAIRCASE (TYPE MS)

FIBERGLASS TREAD

NOTES:

SLOPE ARMORING WHERE

REQ'D TO RETAIN SLOPE

SEE SHEET 17

�-INSTALL BRACES NEAR

MIDSPAN AND ON ALL

SUPPORT POST PAIRS

I . STAIR SLOPE VARIES- STAIRS ILLUSTRATED

AT 37° SLOPE FROM THE HORIZONTAL.

2. MAXIMUM UNSUPPORTED SPAN (ALL

SLOPES): 2 I '-0".

3. MAXIMUM POST HEIGHT: I 0'-0" (SEE SHEET

24 FOR LIMITATIONS).

4. POST HEIGHT MEASURED FROM BASE PLATE

TO TOP OF POST.

5. INDIVIDUAL STAIRS SHALL CONSIST OF NO

MORE THAN TWO SPANS PLUS CANTILEVERS

FOR A MAXIMUM LENGTH OF 52'.

SPLICED STAIR ELEVATION AND SECTION TONGASS

��4:f� t::::-=--=------::::-==-:-------+-----+----__j_ _ _J

REVIEWED: MIS DATE: 04/20 18

ENGINEERING ¢ RECREATION ITNFTYP: 09/04

USDA FOREST SERVICE - TONGASS NATIONAL FOREST

R-10 - PETERSBURG RANGER DISTRICT

ACAD.DWG

PLOT ON I I "XI 7" PAPER

SH.19of 25

C:

\U se rs

\d jla m bs on \D es kt op \A lu m in um

S ta irs \A lu m in um

St ai rs

ST

D_

DJ

L_

.d w g, 2/

/2

3:

:2

PM

Au to

CA

D

PD

F

(G en er al

D oc um en ta tio n)

" K

� FIBERGLASS

STAIR TREAD

¾ G"0 HOLE FOR BOLTS

STAIR TREAD LEDGER

STAIR TREAD LEDGER - SECTION VIEW

SCALE: I " = G"

NOTES:

I . K IS DETERMINED BY RISER DEPTH, WHICH IS DETERMINED BY STAIRCASE

ANGLE.

2. IF A LEDGER OVERLAPS WITH A GUSSET PLATE OR LATERAL BRACE, TRIM

LEDGER SO IT DOES NOT INTERFERE WITH PLATE/BRACE BUT CONTINUES

TO FULLY SUPPORT STAIR TREAD (CUT SIZE VARIES WITH STAIR SLOPE).

I"

%2"0 HOLE FOR TYPE M HOLD DOWN

CLIPS. LOCATE HOLES SO THAT NOSE

OF TREAD IS FLUSH WITH END OF

LEDGER (TYP .)

STAIR TREAD LEDGER - TOP VIEW

SCALE: I" = G"

� STRINGER

� STAIR TREAD LEDGER

/ 2x2»-4 ANGLE

Y4"0 BOLT

STAIR TREAD LEDGER CONNECTION - SECTION VIEW

SCALE: I" = G"

TONGASS

DESIGNED: DJL DATE:0I/20I8 IDATE:

4" x 8" x ¾" WEB

SPLICE PLATE

LA

I 4" x 4" x ¾" FLANGE

SPLICE PLATE

STRINGER

�----+- HEX LOCK NUT

(TYP. FOR ALL

SPLICE BOLTS)

STRINGER

-ii'--------- I '-2" --------ii'-

NOTES:

STRINGER SPLICE - ELEVATION

SCALE: I " = G"

I . INSTALL SPLICES AT APPROXIMATELY½ OF THE DISTANCE BETWEEN SUPPORT POSTS.

SPLICE PLATE

½"0 BOLT

,__ SPLICE PLATE

SPLICE PLATE

STRINGER SPLICE - SECTION A-A

SCALE: I" = G"

2. SPLICES SHALL NOT OVERLAP WITH HANDRAIL POSTS, STRINGER STIFFENERS, OR STAIR TREADS.

3 . SPLICE BOLTS MAY PASS THROUGH STAIR LEDGERS IF NECESSARY. BOLTS HOLES SHALL NOT INTERSECT WITH EDGE OF LEDGERS.

I o/i G 11

REVISION:

5 x 3 x ¾ ANGLE 9" x G" x ¾"

BRACE END PLATE

1:XG"

BRACE END DETAIL

SCALE: I " = G"

BY:

SUPPORT POST

3 x 3 x ¾ TUBE BRACE

(NOT VISIBLE)

BRACE END PLATE

SEE DETAIL 4 , THIS

SHEET$ DETAIL 2

SHEET 23

9/i G"0 HOLE

TYP.

5 x 3 x ¾ x 3" LONG ANGLE

3"-+-- l2 // // /211

LATERAL BRACE

½"0 BOLT

SUPPORT POST

BRACE

END PLATE

LATERAL BRACE

½"0 BOLT

BRACE/ POST CONNECTION - 0ffi\ BRACE / POST

'CD PLAN VIEW

CONNECTION -ffi SIDE VIEW

0 SCALE: I " = G" 0 SCALE: I " = G"

NOTE: INSTALL POST BRACE AS CLOSE TO TOP OF POST AS POSSIBLE

WITHOUT INTERFERING WITH GUSSET PLATE.

STAIR DETAILS

l°RAWN, DJL

I I I�rf\i'.�� REVIEWED: M 15 ENGINEERING $ . RECREATIONTNFrYP: 09/04

DATE: 01/2018

DATE: 04/20 18

RAVEN TRAIL RECONSTRUCTION - PHASE 2

METAL STAIRCASE (TYPE MS)

USDA FOREST SERVICE - TONGASS NATIONAL FOREST

R-10 - PETERSBURG RANGER DISTRICT

ACAD.DWG

PLOT ON I I "XI 7" PAPER SH.2oof 25

C:

\U se rs

\d jla m bs on \D es kt op \A lu m in um

S ta irs \A lu m in um

St ai rs

ST

D_

DJ

L_

.d w g, 2/

/2

3:

:2

PM

Au to

CA

D

PD

F

(G en er al

D oc um en ta tio n)

----iF-----1 211 ---�IF-

DRILL o/i G110 HOLE, TYP.

1011 +-

FIELD DRILL o/i G1 10 HOLES IN

ALIGNMENT WITH SUPPORT POST

SEE DETAIL I B THIS SHEET

I A\ GUSSET PLATE - PLAN VIEW

V SCALE: I II = G11

Ii.

PLATE

* * 211 TYP.

1¾11 TYP.

I II RADIUS

TYP. TOP

G11 RADIUS

TYP. BOTTOM

�3½"

%11 PLATE

BOTTOM

EDGE OF STRINGER

SUPPORT POST

11 1 = G11

GUSSET PLATE ANGLE,

I I II LONG 3 x 3 x ¾ ANGLE

1½ 11

1/ II

ITT ' /'k 12

½

1 1

1½1 1

STRINGER ----------i

½11 0 BOLT (TYP.) _____,,,.

SUPPORT POST

FIBERGLASS TREAD

I I " LONG 3 x 3 x ¾ ANGLE

GUSSET PLATE

GUSSET PLATE CONNECTION - SECTION

SCALE: I 1 1 = G11

NOTE: (2) GUSSET PLATES PER SUPPORT POST. NOTE: STAIR SLOPE VARIES- STRINGER ILLUSTRATED AT 35° SLOPE.

STRINGER

31 1 X

91 1 X ¾1 1

BRACE END PLATE

L 5x3x¾ END ANGLE

SEE DETAIL 3 SHEET 22

3x3x¾ SQ. TUBE BRACE

SEE DETAIL 3 SHEET 22

'------- ½11 BOLT

(TYP.)

BRACE/ STRINGER CONNECTION -

LOCATE BRACE 50 END

PLATES DO NOT INTERFERE

WITH STAIR LEDGERS

® CROSS SECTION

2B BRACE/ STRINGER CONNECTION ELEVATION

G SCALE: 11 1 = G11 G SCALE: / 1 1 = G"

NOTE: RAIL POST/STIFFENER NOT SHOWN FOR CLARITY.

TONGASS

DESIGNED: DJL DATE:0I/20I8 IDATE: REVISION: BY:

DATE: 01/2018

G11 LONG CS I 2x8.27

STIFFENER CHANNEL

CS I 2x8. 27 ---------t----1

STRINGER

½1 10 BOLT (TYP.) I :� &iJ \

¾II

lo/8 1 1

STRINGER STIFFENER - CROSS SECTION

SCALE: I 1 1 = G1 1

SCALE: I 1 1 = G11

NOTE: ONLY INSTALL STRINGER STIFFENERS ON STRINGERS THAT DO NOT HAVE HANDRAILS. INSTALL

STIFFENERS DIRECTLY ACROSS FROM HANDRAIL POSTS.

RAVEN TRAIL RECONSTRUCTION - PHASE 2

METAL STAIRCASE (TYPE MS)

STAIR DETAILS

l°RAWN, DJL

I I I �rf\i'.�� REVIEWED: M 15 ENGINEERING $ . RECREATIONTNFrYP: 09/04

DATE: 04/20 18 USDA FOREST SERVICE - TONGASS NATIONAL FOREST

R-10 - PETERSBURG RANGER DISTRICT

ACAD.DWG

PLOT ON I I 11X I 711 PAPER SH.2I of 25

C:

\U se rs

\d jla m bs on \D es kt op \A lu m in um

S ta irs \A lu m in um

St ai rs

ST

D_

DJ

L_

.d w g, 2/

/2

3:

:2

PM

Au to

CA

D

PD

F

(G en er al

D oc um en ta tio n)

¼"0 BOLT

HANDRAIL, I .5 x I .5 x½, SQUARE TUBE /_,.. HANDRAIL MOUNT ANGLE, L 3 x 3 x ¾

� 14 X I" PHILLIPS PAN HEAD

SELF TAPPING SCREW, TYP.

HANDRAIL POST, I½ x 3 x 3/i r;

RECTANGULAR TUBE

¾ r;"0 THROUGH-BOLT HOLE ----.

STRINGER�

23/i G

HANDRAIL POST ASSEMBLY - ELEVATION

SCALE: I" = G"

NOTE: STAIR SLOPE VARIES- STRINGER ILLUSTRATED AT 3 5 ° SLOPE

TONGASS

DESIGNED: DJL DATE:0I/20I8 IDATE: REVISION: BY:

u. ,we j°RAwN, DJL

I I I �rr, \-;�t�,\�� REVIEWED:MIS ENGINEERING $ RECREATIONTNFrYP: 09/04

DATE: 01/2018

DATE: 04/20 18

7¾"

23/i G

-t--

HANDRAIL POST

½" DIAM. BOLT, TYP.

STRINGER

3 x 3 x ¾ x 3" ANGLE

-t2"t

HANDRAIL POST INSTALLATION - SECTION

SCALE: I " = G"

RAILING

HANDRAIL

HANDRAIL SPLICE INSERT

HANDRAIL MOUNT ANGLE

14 X I" PHILLIPS PAN HEAD

SELF TAPPING SCREW

HANDRAIL POST

NOTE: SPLICE HANDRAILS ONLY OVER HANDRAIL POSTS.

RAILING

HANDRAIL

HANDRAIL MOUNT

� 14 X I" PHILLIPS PAN HEAD

SELF TAPPING SCREW

HANDRAIL POST

HANDRAIL CROSS SECTION

SCALE: I" = G"

12" t HANDRAIL SPLICE INSERT t

11 11lJ¥-��½

HANDRAIL MOUNT ANGLE

¼"0 BOLT (TYP.)

HANDRAIL SPLICE END - CROSS SECTION

SCALE: I " = G"

RAVEN TRAIL RECONSTRUCTION - PHASE 2

METAL STAIRCASE (TYPE MS)

USDA FOREST SERVICE - TONGASS NATIONAL FOREST

R-10 - PETERSBURG RANGER DISTRICT

HANDRAIL SPLICE - SIDE SECTION

SCALE: I " = G"

HANDRAIL DETAILS

ACAD.DWG

PLOT ON I I "XI 7" PAPER SH.22 of 25

C:

\U se rs

\d jla m bs on \D es kt op \A lu m in um

S ta irs \A lu m in um

St ai rs

ST

D_

DJ

L_

.d w g, 2/

/2

3:

:2

PM

Au to

CA

D

PD

F

(G en er al

D oc um en ta tio n)

2"X I 2" TIMBER

BACKWALL

3 x 3 x % ANGLE

BACKWALL MOUNT

½"0 BOLT

NOTES:

����1

DJ) I , 3"

� -rt

TIMBER BACKWALL - SIDE VIEW

SCALE: I " = G"

I . ALIGN TOP EDGE OF BACKWALL WITH TOP OF TREAD.

STRINGER

FIBERGLASS TREAD

-----1-�---1--MIN. 3"

-I V.:=j I '-- BACKWALL MOUNT

2X 12 BACKWALL,

MIN. 3'-2" LENGTH

TIMBER BACKWALL - OUTSIDE VIEW

SCALE: I " = G"

2. ALIGN BOTTOM EDGE OF BACKWALL MOUNT WITH BOTTOM EDGE OF STRINGER.

TONGASS

DESIGNED: DJL

3. K DEFINED ON SHEET 22.

DATE:01/2018 IDATE: REVISION: BY:

l°RAWN, DJL

I I I �rf\i'.�� REVIEWED: M 15 ENGINEERING $ . RECREATIONTNFrYP: 09/04

DATE: 01/2018

DATE: 04/20 18

RAVEN TRAIL RECONSTRUCTION - PHASE 2

METAL STAIRCASE (TYPE MS)

USDA FOREST SERVICE - TONGASS NATIONAL FOREST

R-I0 - PETERSBURG RANGER DISTRICT

STAIR TOP DETAILS

ACAD.DWG

PLOT ON I I "XI 7" PAPER SH.23 of 25

C:

\U se rs

\d jla m bs on \D es kt op \A lu m in um

S ta irs \A lu m in um

St ai rs

ST

D_

DJ

L_

.d w g, 2/

/2

3:

:2

PM

Au to

CA

D

PD

F

(G en er al

D oc um en ta tio n)

NOTES:

-J�-------1 '-3" ---------#-

I '-3"

* * 3" TYP.

1--------- SIZE HOLE PER MANUFACTURER'S

SPECIFICATIONS, TYP.

---+-- SUPPORT POST

3/1 G"

---- ¾" SUPPORT BASE PLATE

SUPPORT POST SOIL ANCHOR FOOTING - PLAN VIEW

SCALE: I " = G"

UNSUITABLE

BEARING MATERIAL

SUPPORT POST

¼"0 WEEP HOLE

AMERICAN EARTH ANCHORS PE I 8

OR PE 2G (ALUMINUM A35G ALLOY),

OR EQUIVALENT

�BASE PLATE

� BEARING MATERIAL

(COMPACTED SAND

OR GRAVEL)

I. FOR STAIRS WITH POST HEIGHTS OF 7' OR LESS, USE AMERICAN EARTH ANCHORS PE 18 OR EQUIVALENT.

l

MIN. 2"

2. FOR STAIRS WITH POST HEIGHTS GREATER THAN 7', USE AMERICAN EARTH ANCHORS PE 2G OR EQUIVALENT.

SUPPORT POST SOIL ANCHOR FOOTING - SECTION VIEW

SCALE: I " = G"

Ll

9"

<J

9"

Ll Ll <J Ll

,j I o

--+--- 1 ){ G 110 HOLE, TYP.

HOLE SIZE MAY VARY FOR

OTHER APPROVED ANCHOR

<J

Ll

Ll

I " TYP.

-+--- SUPPORT POST

¾" SUPPORT BASE PLATE

3/1 G"

Ll

'------- CONCRETE LEVELING

PAD ( 13" x I 3" MIN.)

BEDROCK FOOTING INSTALLATION - PLAN VIEW

SCALE: I II = G"

CONCRETE

SUPPORT POST

¼"0 WEEP HOLE

�------- %"0 ALL-THREAD OR

APPROVED ANCHOR

ROD W/ NUT$ WASHER,

LENGTH FOR 4" MIN.

ENBEDMENT IN

------- BASE PLATE BEDROCK,TYP.

EXCAVATE BEDROCK

IF NECESSARY TO PROVIDE

DIMENSIONS SHOWN

BEDROCK FOOTING INSTALLATION - SECTION VIEW

SCALE: I " = G"

TONGASS

DESIGNED: DJL DATE:01/2018 IDATE: REVISION: BY:

l°RAWN, DJL

I I I �rf\i'.�� REVIEWED: M 15

DATE: 01/2018

RAVEN TRAIL RECONSTRUCTION - PHASE 2

METAL STAIRCASE (TYPE MS) FOOTING DETAILS

ENGINEERING $ . RECREATIONTNFrYP: 09/04

DATE: 04/20 18 USDA FOREST SERVICE - TONGASS NATIONAL FOREST

R-10 - PETERSBURG RANGER DISTRICT

ACAD.DWG

PLOT ON I I "XI 7" PAPER SH.24of2s

C:

\U se rs

\d jla m bs on \D es kt op \A lu m in um

S ta irs \A lu m in um

St ai rs

ST

D_

DJ

L_

.d w g, 2/

/2

3:

:2

PM

Au to

CA

D

PD

F

(G en er al

D oc um en ta tio n)