DELINEATORS
PART 1 GENERAL
1.1SECTION INCLUDES
A.Delineators, Type I and Type II.
B.Culvert and maintenance markers.
C.Freeway turnaround markers.
1.2RELATED SECTIONS
A.Section 02765: Pavement Marking Paint
B.Section 02890: Retroreflective Sheeting
1.3REFERENCES
A.AASHTO M 111: Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel
Products
B.ASTM A 1011: Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural,
High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability
C.ASTM D 638: Tensile Properties of Plastics
D.ASTM D 4956: Standard Specification for Retroreflective Sheeting for
Traffic Control
E.ASTM G 23: Operating Light-Exposure Apparatus (Carbon-Arc Type)
With and Without Water for Exposure of Nonmetallic Materials
1.4DEFINITIONS Not Used
1.5SUBMITTALS Not Used
Delineators
PART 2 PRODUCTS
2.1STEEL POSTS
A.Supply and galvanize posts as specified. Refer to ASTM A 1011 and
AASHTO M 111.
B.Use flanged, channel-shaped steel posts that weigh 2 lb/ft.
C.Make all cuts before galvanizing posts. Refer to GW Series Standard
Drawings.
2.2FLEXIBLE POSTS
A.Free of burns, discoloration, contamination, and other defects.
B.Remains flexible at temperatures from -5 degrees F to +140 degrees F.
C.Capable of being driven into an earth shoulder with or without a pilot hole.
D.Tensile strength of 1,100 psi. Refer to ASTM D 638.
2.3QUALITY CONTROL – FLEXIBLE POST TESTING
A.Meet Cold Bend Test
1.Subject two posts to a temperature of -10 degrees F, ± 5 degrees F
for at least four hours.
2.Immediately bend each post four times through a 90 degree angle
around a 2 inch mandrel.
3.Each post must return to its original straight configuration within a ±
10 degree angle within five minutes at the end of the four bends.
4.Any cracking or significant loss of rigidity are grounds for failure.
B.Meet Hot Bend Test
1.Subject two posts to a temperature of 100 degrees F ± 5 degrees F
for at least four hours.
2.Satisfy all bending and physical requirements specified in the Cold
Bend Test.
C.Meet Impact Resistance Test
1.Subject post to impacts by a typical sedan as follows:
a.Three hits - 0 degree angle at 0 degrees F.
b.Three hits - 0 degree angle at 100 degrees F.
c.Ten hits - 0 degree angle at 35 mph.
d.Five hits - 15 degree angle at 55 mph.
Delineators
2.Acceptable Results
a.Installed post remain intact, securely anchored, and within
± 10 degrees of vertical orientation.
b.Installed post shows minimal signs of cracking or loss of
rigidity.
c.Installed post retains at least 50 percent of its reflective
sheeting.
d.Impact vehicle suffers little or no damage during the impact
test.
D.Exposure
1.Expose the specimens for 500 hours in a carbon arc-type
apparatus according to ASTM G 23, Method 1.
2.Acceptable results:
a.Exposure does not result in delamination, distress, or
discoloration.
b.Sheeting is not removable from the specimens without
damage.
c.Post is resistant to ultraviolet light, ozone, hydrocarbons, and
other weathering.
2.4SHEETING
A.Refer to Section 02890.
2.5PAINT
A.Refer to Section 02765.
PART 3 EXECUTION
3.1INSTALLATION
A.Posts – Visibly free of bends or twists both before and after installation.
END OF SECTION
Delineators
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Source: Utah Standard Specifications for Road and Bridge Construction, 2026 Edition. Pages 727–729 of 1,331. View official source ↗