Attachment_V_-_W633-7.pdf

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Saw cut notch full width of post. Omit notch for

1 • single post installations

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Notch depth (where required) (See Post Selection table)

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Long side of post

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Field drill holes through post, parallel to sign face.

See table for hole size

Finish ground line w

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Elevation at edge of traveled way

Backfill material 3" minimum all around (typ.)

, X=5 ft

1 • ! • 1 maximum

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-8' l.lJ w

0.2X

Same post size

Elevation at edge of traveled way

Backfill material 3" minimum all around (typ.)

X=4 ft (min.)

to 12 ft (max.)

0.6X 0.2X

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SINGLE POST SIGNS TWO POST SIGNS

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POST DETAIL

w

0.15X

Same post size

Elevation at edge of traveled way

Backfill material

Direction of traffic flow

SIGN INSTALLATION ANGLE

For all retroflectorized signs where W > 25'

X=10 ft (min.) to

:1: ''

18 ft (max.)

0.35X 0.35X

·1· ''

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3" minimum all around (typ.)

·1· ''

0.15X

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THREE POST SIGNS

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MINIMUM DISTANCE TO SIGN

Lateral Mounting Location Offset (W) Height (V) Rural Districts 6 ft 5 ft Business or 2 ft 7 ft Residence Districts from curb

V may be reduced by 1 foot in rural districts for a secondary sign mounted below another sign.

w

0.125X

Same post size

Backfill material

3" minimum all around (typ.)

X=14 ft (min.) to 22 ft (max.)

0.25X 0.25X 0.25X

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FOUR POST SIGNS

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0.125X

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STATE PROJECT

NOTE:

1. Traffic barrier protection is required for all posts larger than 6" x 8" when located within the clear zone or if the post

SHEET

NUMBER

is vulnerable to being struck when placed outside the clear zone.

2. H1 thru H4 indicate overall post length. Select post lengths to fit field conditions.

3. D is the minimum post embedment depth for average soil conditions. See Wood Post Selection Table below.

4. Z is the height from ground line to mid-height of sign at the longest post.

5. For the purpose of post selection X and Y are as follows:

- Single sign, or back to back signs: X and Y are the overall dimensions of the signs.

- Multiple sign installations: X and Y are the dimensions of a rectangle enclosing all the signs.

-½6" lock nu

-½ 6" oversized washer

-½6" nonmetallic oversized washer __ __._........,_ __ (1¼" outside dia.) � o/, "bolt

(- - 0 - --------, 1 6

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TYPICAL MOUNTING FOR

SIGNS WITHOUT ANGLES

WOOD POST SELECTION TABLE

POST NUMBER OF POSTS Notch

SIZE 1 2 3 4 D depth and hole

(inch) Product of X-Y-Z in CUFT diameter 4 x 4 80 155 235 310 3'-0" -

4 x 6 180 385 545 725 4'-0" 1¾" 6 x 6 235 475 710 950 4'-0" 1¾" 6 x 8 300 850 1280 1700 4'-0" 2½"

6 x 10 385 1180 1170 2360 5'-0" -

Bx 10 575 1610 2410 3215 5'-0" -

Bx 12 775 2310 3465 4620 6'-0" -

Values shown are the maximum permitted. If the product of XYZ exceeds the limit for the largest post, use steel post installation.

U.S. DEPARTMENT OF TRANSPORTATION

FEDERAL HIGHWAY ADMINISTRATION

WESTERN FEDERAL LANDS HIGHWAY DIVISION

NO SCALE REVISED:

U.S. CUSTOMARY DETAIL

PERMANENT SIGN

INSTALLATION

WOOD POSTS

DETAIL APPROVED FOR USE 10/2009 DETAIL

W633-7

Attachment V