35951_Exhibit B Standard Drawings.pdf

TM570

TRAFFIC DELINEATORS

T M

.d g n

06-JAN-2012N/A

J A

N

TANGENT

No t A ppl ica ble

THIRD SPACE

FIRST SPACE

REFLECTOR PATTERN TABLE

TYPE - 5

ALTERNATE 2

TYPE - 4

ALTERNATE 1

Wood post

Wood post

E d g e o f s h ld

r. o r fa c e o f c u rb

/- 3

And Target Or Post Color Of Reflector

Reflectors Number Of

On Backside And Target Or Post Color Of Reflector

On Backside Reflectors Number Of

No t A ppl ica ble Pattern

Standard

Pattern Backside

White

White

Type Color

IN ADVANCE OF & BEYOND CURVE

CURVE

ON

CURVE

OF

DEGREE

SECOND SPACE

DELINEATOR SPACING TABLE FOR TYPES 1, 1U, 2, and 4

TYPE - 1 UTYPE - 1

TARGET 3�"

STEEL POSTS

2 ¼"

2½" 3 ½"

¼

2�"

¼

¼ detail See inst.

TYPE - 3TYPE - 2

FLEXIBLE PLASTIC POSTS

" 9

(see steel post detail) U-Flange post

" 9

GUARDRAIL AREAS (WITH WOOD POSTS)

INSTALLATION DETAIL

CONCRETE BARRIER AREAS

HORIZONTAL CURVES

¼

T yp e

, 1 U

- 7 ' M in im u m

T yp e

- V a ria b le

Ground Line

Ground LineGround Line detail See inst.

plastic post Flexible

Ground Line

Ground Line

Conc. Barrier

Var., dependent on rdwy. sec.

(8 req'd.)

¼" dia. holes

54 & Higher 35 - 53 23 - 34 17 - 22 12 - 16 9 - 11 7 - 8

Lower Than 1

2"

1"

2"

1"

2"

1" for the Type 2 post Install reflective sheeting as shown as shown for the Type 1 post Install target and reflective sheeting

Reflective sheeting

¾"

¼

¼ "4

¼

¾"

1�" channelized intersections, lane reductions, emergency escape ramps and freeway crossovers.)

for spacing, layout, and reflective pattern of delineators at interchange ramps, ( Install "W-1" reflective pattern unless otherwise noted. See Standard Drawings TM575 thru TM577 used and anchorage system.

dependent upon make of post plastic posts, variable Metal posts, 2'

To be accompanied by Drg. No. TM571, TM575, TM576, and/or TM577 as specified.

color of the adjacent edge line) and reflective material shall be the (color of barrier marker Retroreflective Barrier marker

"W-2B" "W-1B"

"R-1" "B-3" "B-2" "B-1" "Y-2" "Y-1" "W-2" "W-1"

White White

Red Blue Blue Blue

Yellow Yellow White White

2nd target pattern, install reflector For "B-3"

10. Refer to TM 222 for bracket assembly details for Backside Reflector Pattern.

on one-way sections of roadway, freeways and ramps, or on radius sections.

respectively, on Type 1 steel posts. Do not install Backside Delineators are specified, substitute "W-1" and "W-2" with "W-1B" and "W-2B" where use of snow poles is not justified. When Backside Delineators

9. Backside Delineators may be used in frequently snow plowed areas

8. Offset delineators an additional 4' in areas of heavy snow removal operations.

7. Install all delineators with reflectors facing adjacent oncoming traffic.

for Type 4 Delineators.

the rail and shall be located adjacent to guard rail posts as shown

6. At guard rail locations the delineators are to be installed behind

5. On horizontal curves place delineators nearly opposite each other.

tend to hamper maintenance operations.

standards where ditches are narrow and where delineators in cut section, particularly on roads constructed to older

4. Judgement should be exercised in the installation of delineators must be exceeded.

(b) eliminate said post if limit of variation of spacing shown, or;

(a) vary placement of that post up to 25% at ramps and at intersections, either:

3. To clear driveways, crossroads etc., or for required adjustments used except where situations such as sharp horizontal curves, etc. exist.

2. On roads with less than 500 vehicle ADT, delineators are not to be

1. Spacing shall be measured along the shoulder.

GENERAL NOTES:

around cylindrical post sheeting bands wrapping 4" wide reflective

3" - 4" diameter3" - 4" wide as dir.

8' max.

2' norm.

section when tightening lag screws) Do not compress or deform circular than the diameter of the circular section.

Lag screws shall be at least 2" longer circular section plastic delineators.

(Use 2 lag screws, centered, for with 4 (¼" x 2") lag screws �" dia. holes & fasten

(Install barrier markers at 50' spacing unless otherwise noted in plans)

Place required number in sequence from top of target.

and 4 posts and Type 5 barrier mounts.

Acrylic prismatic reflectors acceptable on Type 1, 1 U, 2 unless otherwise shown.)

( 3½" x 4" reflective sheeting is an acceptable alternate 3" x 4" reflective sheeting unless otherwise shown.

REFLECTORS:

target.

For "B-3" reflector pattern, top target shall overlap bottom with�" dia. aluminum blind rivets and washers.

Aluminum sheet, nominal thickness .050". Fasten to post

TARGET:

and details.

See Standard Drawing TM571 for steel post dimensions

Type 1 U, 1.12 lb/ft.

Galv. steel, nominal weight Type 1, 2 lb/ft, POST:

NOTES:

MAX. SPACING EACH SIDE OF ROADWAY IN FEET

ROADWAY IN FEET

EACH SIDE OF

MAX. SPACING

(Min. spacing 20 feet) the current Oregon Standard Specifications.

All materials shall be in accordance with

DATE REVISION DESCRIPTION

OREGON STANDARD DRAWINGS

DATE

SDR

BOOK NO.

CALC.

Effective Date: December 1, 2023 - May 31, 2024

Professional Engineer.

first consulting a Registered and should not be used without sole responsibility of the user principles and practices, is the generally accepted engineering designed in accordance with

Standard Drawing, while

The selection and use of this

With White reflective on white side.

EXHIBIT B - STANDARD DRAWINGS