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DIVISION 9 SIGNING Section 900
9-1
DIVISION 9
SIGNING
SECTION 900
GENERAL REQUIREMENTS FOR SIGNING
900-1
DESCRIPTION
Furnish, fabricate and erect complete traffic sign and sign lighting systems in accordance
with the requirements of the contract.
900-2
ACCEPTANCE OF SIGNS
Prior to final inspection of the signs, clean exposed sign and support surfaces, and repair
the site as may be deemed necessary to ensure the safety, effectiveness and neat appearance
of the work.
Maintain responsibility for the signs until accepted. Any damaged sign will not be
accepted. Any repairs to the signs before final acceptance of the project are to be approved.
Do not perform any repair work without written approval. Make repairs only under the
supervision of the Engineer.
Handle, transport, and store all signs in accordance with the sheeting manufacturers
recommendations. Failure to comply with the manufacturers recommendations during the
handling, transportation, and storage of the signs will be cause for rejection of the signs.
The Contractor may request early Department acceptance of part or all of the highway
signs, including sign panels, retroreflective sheeting, and associated hardware, before final
project acceptance. Sign supports will not be accepted early. To be accepted prior to final
project acceptance, the signs shall be required for traffic control at that phase of project
construction.
If the Department accepts the signs, the Contractor will be relieved of the responsibility
for any damage and/or theft that may occur to the signs, retroreflective sheeting, or
associated hardware, with exception of any damage caused by the Contractor or any
subcontractor working on the project.
900-3
ALTERNATE DESIGN
Standard designs for Types A, B, D, E, and F ground mounted signs will be shown in the
contract. In lieu of the standard design, the Contractor may submit for approval an alternate
design for sign panels differing in component parts and construction details from those
shown in the contract. Provide any alternate designs that are in accordance with the Manual
on Uniform Traffic Control Devices, published by FHWA.
Submit complete details of the alternate sign designs to the Engineer for approval.
Include the dimensions, thickness, and alloys of the component parts, and typical shop
drawings of all fabrication, erection, and construction details.
Alternate design for supports and footings will not be permitted. Section 900
9-2
900-4
COVERING OF SIGNS
Cover signs or portions of signs that have been erected on roads to traffic, but that are
not yet applicable to traffic. Keep signs or portions of signs covered until instructed to
remove the covering. Provide covering for entire signs by method approved by sheeting
manufacturer that will prevent the messages from being read or seen during both day and
night conditions and that will cause no harm to the sheeting face.
SECTION 901
SIGN FABRICATION
901-1
DESCRIPTION
Fabricate and furnish signs, including sign face, supporting frames, hardware, and
package the signs for shipment.
901-2
MATERIALS
Refer to Division 10:
Item
Section
Signs and Hardware
1092-1
Retroreflective Sheeting
1092-2
CONSTRUCTION METHODS
(A)
General
Details concerning the fabrication and erection of the signs are shown in the contract.
Sign designs not shown in the contract are available from the Signing Engineer.
All items shall be fabricated to within 1/8 of exact measurements.
Scribe each sign, shield, arrow, overlay and/or blank on the back with the month and
year of manufacture and the metal treater of the aluminum sheets.
Do not begin fabrication for Type A & B signs until S dimensions verification
revisions have been approved.
Provide mounting holes in the Z stringers of the signs in accordance with the details
shown in the contract or approved shop drawings. Provide a space between the
Z bar and backing strip not greater than 1/8.
Date the erection of all signs and sign assemblies using printed self-adhesive stickers
designed for punching the appropriate day, month, and year numbers with a hole
punch. Place the sticker on the back of each sign in the lower corner nearest the
roadway. The Sign Fabricator will provide a sufficient quantity of the stickers for
each sign. Print on the back of each sign the size of that sign [e.g. 144 X 48] with
a black permanent marker with numbers a minimum of 2 inches in height and located
near the self-adhesive sticker. Section 901
9-3
(B)
Department and Contractor Furnished Signs
The contract will show whether the signs are to be fabricated and furnished by the
Contractor or whether the Department will provide them to the Contractor.
For both Department and Contractor Furnished Signs, the Contractor provides all
mounting hardware consisting of, but not limited to, backing plates, mounting bolts,
washers, shims, and nuts.
The sign fabricator will provide vertical Z bars required for attaching secondary signs
to the primary signs.
Confirm in writing a minimum of 4 months in advance, the actual date the
Department furnished signs will be required. The signs will be made available to the
Contractor for pickup at the North Carolina Department of Correction sign
fabrication facility on NC 39 near Bunn, North Carolina, unless otherwise indicated
in the Specifications. Provide for all transportation.
The Engineer will inspect and approve the signs before they are packaged and crated
for shipment. Any inspection by the Contractor will be done at no cost to the
Department. Take delivery of all signs within 60 days of the date requested or the
date they are made available, whichever occurs last, and within 96 hours of receiving
the first sign. The Engineer shall approve any exception to the above delivery
procedure. At the time the signs are delivered to the project, provide to the Engineer
one copy of the sales ticket furnished with the signs. Signs stored beyond these dates
incur a storage fee of 5% of the cost of the sign per month or portion thereof.
After taking possession of the signs, be responsible for any damage and/or theft that
occurs to signs prior to final acceptance by the Engineer. Comply with the reflective
sheeting manufacturer's recommendations for handling, transporting, erecting, and
storage of the signs. Acceptably repair or otherwise correct any damage to the signs
or refabricate them at no cost to the Department. When requested by the Contractor,
the Department may have the necessary repairs made, or the signs refabricated, and
deduct the associated costs thereof from monies due the Contractor. Section 901
9-4
(C)
Signs
Construct all signs, supporting frames and assemblies in accordance with the details
shown in the contract.
TABLE 901-1
SIGN TYPE PARAMETERS
SIGN
TYPE
VERT. AND HORIZ.
DIMENSIONS
Inches
ALUMINUM
PANELS
(144 x 48)
HORIZANTAL
Z BARS
ALUMIMUN
THICKNESS
Inches
A
1. Vertical or Horizontal >
144 or
2. Vertical and Horizontal
> 48
Multiple
Yes
0.125
B
1. Vertical and Horizontal
< 144, and
2. Vertical or Horizontal <
48
Single
Yes
0.125
D
Single
No
See Table
901-2
E
Single
No
See Table
901-2
F
Single
No
See Table
901-2
(1)
Type A Signs
Fabricate Type A signs from multiple 0.125 aluminum sheet increments, with
welded studs for attachment to the supporting frame. Type A signs may be
fabricated from multiple 0.080 aluminum sheet increments, with the use of
very high bond acrylic foam tape capable of obtaining 140 psi tensile
adhesion, for attachment to the supporting frame.
Use aluminum sheets with increments of 4 feet in width; except, for sign
widths that are not multiples of 4 feet, a maximum of two (2) panels may be
cut to less than 4 feet. No panel may be cut to less than 1 foot. Mount
aluminum sheet increments vertically, and provide with backing strips at the
vertical joints, held firmly in place, to keep the abutting sheets in proper
alignment. Leave a minimum space of .020 to a maximum space of .032
between each panel.
Fabricate signs with a height of 12 feet or less, without horizontal joints. One
horizontal joint will be permitted for signs that are more than 12 feet in height.
Locate the joint near the mid-height of the sign. Construct this joint according
to the details as shown in the contract. Section 901
9-5
(2)
Type B Signs
Fabricate Type B signs from single 0.125 aluminum sheets, with welded
studs for attachment to the supporting frame. Type B signs may be fabricated
from single 0.080 aluminum sheets, with the use of very high bond acrylic
foam tape capable of obt