NOTES BEAM GUARDRAIL TRANSITION SECTION TYPE 24 BEAM GUARDRAIL TYPE 31

PAY LIMIT PAY LIMIT REDUCED LENGTH 1. This guardrail transition is for connection to a vertical concrete shape,

THRIE BEAM RAIL ~ a single slope, or a safety-shape barrier. The toe of the single slope and the safety-shape barrier shall be tapered or the barrier blocked ELEMENT (10 GA!_)...~------"'----'-~ ------------­REDUCER ELEMENT

• i out so that the toe of the barrier does not project beyond the face of 1 TYPE C (10 GAGE)

the approach guardrail. SEE CONTRACT PLANS FOR I I

1.. 3' - 1 1/2" 3 SPACES @ 3' - 1 1/2" 6' - 3" 3' - 1 1/2" SPECIFIED CONNECTION - .. 1 .. · I· 2. See Standard Plan C-1 b for thrie beam wood block detail.

END SECTION DESIGN F I I I

SHOWN I .. 1114" I ~ 8" (IN) W- BEAM WOOD BLOCK 3. See Standard Plan C-20.10 for typical components (nuts.washers

SEE NOTE 4 AND DETAIL B !------I 1 I I and bolts) at splices.

I '

4. See Standard Plan C-1 b for W-Beam wood block detail.

5. All rail sections shall be lapped in the direction of traffic.

6. See Standard Plan C-24.10 for details regarding connection to bridge rail or traffic barrier.

7. See Standard Plans A-50.10, or A-50.40 for beam guardrail GROUND transition grading details at bridge ends.

FACE OF FACE OF THRIE BEAM W- BEAM GUARDRAIL GUARDRAILWOOD BLOCK WOOD BLOCK

5/8" (IN) x 10" (IN) 5/8" (IN) x 10" (IN)

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{C ----o( 0 0

' '-oC - - - - - - ' '- - f,...

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A11 !\ N

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0 0

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' 1 ." 1•W\W ' IW\W

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LINE ' ' ' ' I

' I I I I ~I I8" (IN) THRIE BEAM WOOD '

I M II

BLOCK - SEE NOTE 2 I

AND DETAIL A ' I I I I I I I

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~ _!_ 1 - r -t- _L_ ' - C BUTTON HEAD BOLTS BUTTON HEAD BOLTS - : \_ 6 x 8 TIMBER POST OR ' WI 7/32" (IN) OVAL WI 7132" (IN) OVAL

6" x 12" x 19" (IN) THRIE BEAM GRIP & HEX HEAD NUT GRIP & HEX HEAD NUT W6 x 8.5 OR REDUCER BLOCK - SEE DETAIL, WI CUT WASHER ---.----'1--+~G""-'-rr"--nWI CUT WASHER W6 x 9 STEEL POST STANDARD PLAN C-25.22 SEE STANDARD PLAN C-1b

FOR BOLT, NUT AND WASHER, SEE DETAIL B - THIS SHEET

I

W6 x 8.5 OR W6 x 9 - 6' - O" LONG STEEL POSTS

ELEVATION VIEW 4' - 2"

3' - 1 1/2"

STEEL POST ~,,iI ~1

STEEL POST ~ ! ::

~ --1yL DETAIL A DETAIL B Ij= Ii :::::t5SFiR I : I 6 6 6

I I f

'l' 'l' 'l' I 'l'

+ + + +

::

LEFT

(MIRROR OF RIGHT) REDUCED LENGTH THRIE-BEAM RAIL ELEMENT

10 GAGE

£ 1/4" 4 1/4" 7' - 3 1/2"

, I ~~ 29/32" (IN) x 1 1/8" (IN) 3/4" (IN) x 2 1/2" (IN) I I !

SLOT (TYP.) 3' - 1 1/2" 3' - 1 1/2" SLOT

Aug 17, 2021

BEAM GUARDRAIL (TYPE 31) TRANSITION SECTION TYPE 24

(POSTED SPEED 45 MPH AND BELOW)

29/32" (IN) x 1 1/8" (IN) STANDARD PLAN C-25.30-01SLOT (TYP.) 2" SHEET 1 OF 1 SHEET3/4" (IN) x 2 1/2" (IN) 1' - 0 1/2" --1RIGHT

SLOT (TYP.) APPROVED FOR PUBLICATION REDUCER ELEMENT TYPE C ~ Aug 20, 2021

STATE DESIGN ENGINEER DETAIL 0 DETAIL 0 .... r ­

... Washington Stole Department of Transportation