Amendment A001.pdf

Front View Side View

Anchor unit

Ground line 1"

"4 3 1" 4" 1.938" 8.562" .875"

1"

.375" .375"

17.125"

1"

U-Channel Post

Retainer strap

Anchor unit

4"

38"

42"

Ground line

38"

4"

Retainer Strap Detail

Sign post

S ig n p o s t

S ig n p o s t

A n c h o r u n it

Back View

Sign post

Ground line

Sign post

Ground line

16" min.

18" min.

2" max.

Alternate A

Breakaway U-Channel Detail

Detail A

(see detail)

Retainer strap

See Detail A

See Alt. A Note 4

See Alt. A Note 1c

(see Alt. A Note 1b)

Retainer strap

(see Alt. A Note 3) and lock washer

Grade 8 bolt, nut, (see Alt. A Note 3) and lock washer

Grade 8 bolt, nut, 18"

Note 4

See Alt. A anchor unit and on back side of front side of sign post

Retainer strap is on

(60" min.)

Anchor unit

(42" min.)

Anchor unit lock washers lock nuts and

2- bolts grade 5, lock washers lock nuts and

2- bolts grade 5, lock washers lock nuts and

2- bolts grade 5, lock washers lock nuts and

2- bolts grade 5, (2.5 and 3 lb/ft)

Alternate C

Breakaway U-Channel Splice Detail

(2.5 and 3 lb/ft)

Alternate B

Breakaway U-Channel Splice Detail

Install a maximum of 3 posts within 7'. Install a maximum of 3 posts within 7'.

Install a maximum of 2 posts within 7'.

bolts have full contact across the entire width.

5. Properly nest base post, strap, and sign post. Proper nesting occurs when all flat surfaces of the base post, strap, and sign post at the

"x2" bolt (this fastens sign post to retainer strap).16

54. Complete assembly by tightening

b) Alternately tighten two connector bolts.

"x2" bolt, lock washer and nut in bottom of sign post to facilitate alignment of sign post with proper hole in anchor unit.16 5a) Place 3.

b) Rotate strap to vertical position.

a) Drive anchor unit to 4" above ground.2.

d) Rotate strap 90° to left.

"x2" bolt, lock washer and nut.16 5c) Assemble strap to back of anchor unit using

b) Establish proper assembly by lining up bottom hole of retainer strap with 6th hole from the top of the anchor unit.

a) Drive anchor unit to within 12" of ground level. 1.

Alternate A Steps of Installation:

New Design Engr PE Stamp

Updated to active voice

10-03-19

9-27-17

REVISIONS

DATE CHANGE

DEPARTMENT OF TRANSPORTATION

NORTH DAKOTA

of Transportation

North Dakota Department document is stored at the on and the original

PE- ,

Registration Number issued and sealed by

This document was originally2-28-14

BREAKAWAY SYSTEMS FOR CONSTRUCTION ZONE SIGNS D-704-8

Kirk J Hoff, 10/03/19

12" 12"

60"

36"

24"

3"

18"

(main sign) Vertical clearance

24"

(secondary sign) Vertical clearance required)

(when

G20-1b-60

15"

48" 48"

16"

16"

12"

6' min shoulder

Edge of finished lane

Edge of driving

6' to 16'

(secondary sign) Vertical clearance

(main sign) Vertical clearance

15"

48" 48"

16"

16"

18"

18"

6"

12"

4"

(urban areas)

Orange flags

3" 21"

60"

60"

24"

12"

12"

12"

15" 15"24" 3"

3"

18"

54"

48"

12"

24"

12"

12" 12"24"

9"

12" 24" 12"

48"

12"

24"

18"

3"

3"

10"

20"

20"

10"

60" 15"

30" 3"

3"

24"

16"

16"

48"

15"

48"

12"

W16-2P-30

24"

30"

3"3"

3"

24"

3"

21"

18" supports

Extend

48"

15"

15"

18"

30"3"

12"

24"15"

54"

15"

6" 24"

24"

30"

3"3"

30"

3"

21"

24"

3"

48"

24" 12"12"

12"

24"

12"

48"

9"

3"

3"

24"

24"

54"

15" 15"24" 3"

3"

18"

12"

24"

12"

48"supports

Extend

64"

24"12" 12"

6" 6"32"32"32"

108"

48"

16" 16"

96"

32"32"

12" 12"

72"

36"

24"24"

12" 12"

72"

24"24"

24"

12" 12"

48"

24"

"2

"2

"2

"2

12"

12"

"2

3" 3" 24" "2

15"

"2

"2

12"

24"

"2

21"

21"

36"

18"

18"

36"

18" 3"

3"

3"

3"

6"

6" 3"

3"

30"

15"

(48" x 48" diamond warning sign shown)

TYPICAL SECTION

R1-2-60 - YIELD SIGN

30" x 24" SIGN

(with R6-1-54 sign as required)

R1-1-48 - STOP SIGN

(with R6-1-54 sign as required)

48" x 48" SIGN

W14-3-64 - PENNANT SIGN

12"

(with 30" x 24" secondary sign)

48" x 48" DIAMOND SIGN

(with 30" x 30" secondary sign)

48" x 48" DIAMOND SIGN

DIAMOND SIGN

18" x 18"

108" x 48" SIGN 96" x 48" SIGN 72" x 36" SIGN 72" x 24" SIGN 60" x 24" SIGN 48" x 24" SIGN

18" 18"

24" 3"

3"

36"

12"

24" x 36" SIGN

ASSEMBLY

ROUTE MARKER

24" x 24"

ASSEMBLY

ROUTE MARKER

36" x 36"

"4

(secondary sign) Vertical clearance

(main sign) Vertical clearance

(main sign) Vertical clearance

W13-1P-30

(main sign) Vertical clearance (main sign)

Vertical clearance

(main sign) Vertical clearance

(main sign) Vertical clearance

(main sign) Vertical clearance

(main sign) Vertical clearance

(secondary sign) Vertical clearance

(main sign) Vertical clearance

(secondary sign) Vertical clearance (main sign)

Vertical clearance

(secondary sign) Vertical clearance

3"

24"

6"4"

20"

20"

4"

20"

20"

18"

(main sign) Vertical clearance

(main sign) Vertical clearance

(main sign) Vertical clearance

(main sign) Vertical clearance

(main sign) Vertical clearance

(main sign) Vertical clearance

(main sign) Vertical clearance

48"

24"

(main sign) Vertical clearance3"

18"

9" "2

"4

" plywood sign panel2

0.080" aluminum or panel and supports bolt (2 per support) joining sign

" A325 or equivalent 2 1"| x 316

"| x 5" bolt16 5with

Attach to upright

Horizontal brace

(ft)

Mounting Height

Sign Panel

4' x 4' sign panel sandbags for

Number of 25 lb

5'

7' 10

(see Table)

Ballast

32"

9"

48" panel and supports bolt (2 per support) joining sign

"| x 3" A325 or equivalent 16

"4

(see Table)

Ballast

" plywood sign panel2

0.080" aluminum or upright and sleeve equivalent bolt joining

"| x 3" A325 or 16

(optional) upright and sleeve equivalent bolt joining

"| x 3" A325 or 16

72"

"8

61'

HIGH-MOUNTING HEIGHT

PORTABLE SIGN SUPPORT

required)

(when

R6-1-54 required)

(when

W20-52P-54

LOW-MOUNTING HEIGHT

PORTABLE SIGN SUPPORT

" x 10 gauge2 1" x 22

Use minimum post size of

Steel perforated tube support

Steel perforated tube

" x 12 gauge2 1" x 344

1" x 24

Horizontal brace

Steel perforated tube

" x 12 gauge2 1" x 22

Sleeve

Steel perforated tube

" x 12 gauge2 1" x 22

Skid

Steel perforated tube

" x 12 gauge4 3" x 14

Sleeve

Steel perforated tube

" x 12 gauge4 3" x 14

Skid

Steel perforated tube

" x 12 gauge4 3" x 14

Upright

(For each side of sign support base)

MINIMUM BALLAST

78" max

12" min

32"

Steel perforated tube

" x 12 gauge4 1" x 24

Upright clearance vertical minimum 5' or 7' clearance vertical for 7'

150" min or for 5'

126" min the sign.

from face of the curb to near edge of minimum horizontal distance of 2'

Note: In curb sections, place signs a ends of skids.

speed of 55 MPH. Place sandbags at or near the

Note: The number of sandbags are based on a wind details to a maximum surface area of 16 square feet.

LOW-MOUNTING HEIGHT and HIGH-MOUNTING HEIGHT

Restrict signs mounted on portable sign supports shown in the and E5-1 is allowed for longer than 5 days.

R9-8 through R9-11a series, W1-6 through W1-8 series, M4-10, failures, etc., will not accrue towards the 5 day period. Use of circumstances, such as equipment breakdown, rain, subgrade of the sign is not obstructed. Time delays caused by unforseen portable signs for 5 days or less, is allowed as long as the view

Use of low-mounting height (minimum 12" vertical clearance) within the pavement surface.

clearance stated above when it is necessary to place signs

Portable Signs: Provide portable signs that meet the vertical 6.

post for signs with an area exceeding 50 square feet.

Provide a minimum clearance of 7'-0" from the ground at the vertical clearance stated above.

The vertical clearance to secondary signs is 1'-0" less than the absence of a curb.

the top of the curb or from the near edge of the driving lane in obstructed, install signs with a vertical clearance of 7'-0" from pedestrian movements are likely or the view of the sign may be

5'-0" (see TYPICAL SECTION.) In areas where parking or

Vertical Clearance: Install signs with a vertical clearance of 5.

County - yellow legend on blue background

US and State - black legend on white background

Interstate Business Loop - white legend on green background

Interstate - white legend on blue background used with:

a background and legend that match the route marker they are signs, such as the cardinal direction and directional arrows, with

Route Marker Auxiliary Signs: Provide route marker auxiliary 4.

"Left" and "Right" message on lane closure sign) signs on reflectorized plate (without borders) as required. (i.e.

Alternate Messages: Install and remove alternate message 3.

" bolts.8 3Punch all holes round for plywood, or other approved material, except where noted.

" 2 1Sign Panels: Provide sign panels made of 0.100" aluminum, 2.

behind sign panels when used with u-posts.

Do not attach guy wires to sign supports. Attach wind beams supports as a minimum.

" perforated tube 2 1" x 22

1Place signs over 50 square feet on 2 of 55 MPH.

secondary sign is 3.0 lb/ft. Post sizes based on a wind speed u-channel, minimum post size for assemblies containing a perforated tube, except where noted. When installing signs on sizes are 2.5 lb/ft u-channel or 2" x 2" x 12 gauge steel

Sign Supports: Galvanize or paint supports. Minimum post 1.

NOTES:

required)

(when

R1-50P-24

(with R1-50P-24 sign as required)

R1-1-48 - STOP SIGN

required)

(when

R2-1aP-24

(with R2-1aP-24 sign as required)

48" x 48" SIGN

3"

18"

10-4-13

D-704-14

CONSTRUCTION SIGN PUNCHING AND MOUNTING DETAILS

Kirk J Hoff, REVISIONS

DATE CHANGE

DEPARTMENT OF TRANSPORTATION

NORTH DAKOTA

of Transportation

North Dakota Department document is stored at the on and the original

PE- ,

Registration Number issued and sealed by

This document was originally

Revised 60"x24" sign detail

Updated to active voice

Revised Note 6

11-01-19

9-27-17

11-14-13

11/1/19