82-2.03A General
Deliver sign panels to the job site with the background and legend permanently affixed to the panels.
Do not chip or bend sign panels.
Immediately replace sign panels exhibiting damage or flaws, including a significant color difference between daytime and nighttime.
Obtain authorization before repairing sign panels at the job site.
Use the following hardware to mount the type of sign panel shown:
1. Lag screws, nuts, bolts, and washers for roadside signs
2. Braces and wood block spacers for roadside signs
3. Type A-1 and Type A-2 mounting hardware for overhead laminated-panel signs
4. Type A-3 mounting hardware for overhead formed-panel signs
For laminated multiple-panel signs, place an H-section closure extrusion in the top channel of the lower panel before mounting the upper panel. When mounted, the bottom channel of the adjoining upper panel must fit together to enclose the H-section closure extrusion for the full length of the panel without gaps.
82-2.04 PAYMENT
The payment quantity for furnishing any type of sign panel is the area determined from the dimensions shown.
82-3 ROADSIDE SIGNS
82-3.01 GENERAL 82-3.01A Summary
Section 82-3 includes specifications for constructing roadside signs.
Roadside signs include Type N (CA), Type P (CA), and Type R (CA) marker panels.
82-3.01B Definitions
roadside sign: Traffic sign with 1 or more sign panels attached to a supporting structure consisting of 1 or 2 posts, a signal standard, or a lighting standard.
82-3.01C Submittals
Reserved
When delivered to the job site, treated posts must comply with the specified grading requirements and have a moisture content of not more than 25 percent when tested under ASTM D4444 with an authorized moisture meter.
82-3.02 MATERIALS 82-3.02A General
A roadside sign includes sign panels, fastening hardware, back braces, straps and saddle brackets, and frame assemblies for multiple sign panels.
A mounting for a roadside sign to be installed on a barrier or railing must be fabricated from (1) welded or seamless steel pipe complying with ASTM A53/A53M, Grade B, and (2) structural steel complying with ASTM A36/A36M.
Bolted connections must comply with section 56-2.02D. Concrete anchorage devices must comply with section 75-3.
After fabrication, all metal parts for mounting a roadside sign must be galvanized under section 75-1.02B.
82-3.02C Wood Posts
A wood post must be the allowable grade and species for the sizes shown in the following table:
Nominal post sizea
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Allowable grades and species
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4 by 4 inches
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Select heart redwood
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No. 1 heart structural redwood, 1050f
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No. 2 heart structural redwood, 900f
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No. 1 structural light framing Douglas fir, free of heart center
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No. 1 structural light framing Hem-Fir, free of heart center
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No. 1 structural light framing Southern yellow pine, free of heart center
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4 by 6 inches
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Select heart grade redwood
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Select heart structural grade redwood, 1100f
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No. 1 heart structural redwood, 950f
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No. 2 structural joists and planks, Douglas fir, free of heart center
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No. 1 structural joists and planks Hem-Fir, free of heart center
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No. 2 structural joists and planks Southern yellow pine
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Greater than 4 by 6 inches
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Select heart redwood
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No. 1 heart structural redwood, 950f
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No. 1 posts and timbers, also known as no. 1 structural, Douglas fir, free of heart center
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Select structural posts and timbers Hem-Fir, free of heart center; and no. 1 timbers Southern yellow pine, free of heart center
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aSizes shown are minimum dressed dry sizes
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The posts must be graded under section 57-2.01B(2). The sweep must not exceed 0.08 foot in 10 feet.
When tested under ASTM D4444 with an authorized moisture meter, the moisture content of Douglas fir, Hem-Fir, and Southern yellow pine posts must be not more than 25 percent in the outer 1 inch at the post's midpoint before preservative treatment.
Douglas fir and Hem-Fir posts must be treated under section 57-2.01B(3) and under AWPA U1, Use Category UC4A, Commodity Specification A. Posts must be incised, and the minimum retention of preservative must comply with AWPA requirements.
82-3.02D Laminated Wood Box Posts
The Department furnishes a laminated wood box post with an attached metal cap at the top of each post.
82-3.02E Sign Panel Fastening and Mounting Hardware
Frame assemblies for multiple sign installations must be fabricated from an aluminum alloy or structural steel complying with ASTM A36/A36M. Frames fabricated from structural steel must be hot-dip galvanized after fabrication.
Back braces for a sign must be made of commercial-quality, mild steel and hot-dip galvanized after fabrication.
Straps and saddle brackets for mounting sign panels on lighting standards, sign structure posts, and traffic signal standards must be stainless steel complying with ASTM A167, Type 302B. Theft-proof bolts must be stainless steel with a chromium content of at least 17 percent and a nickel content of at least 8 percent.
Bolts, except theft-proof bolts, lag screws, metal washers, and nuts must be made of commercial-quality steel and hot-dip galvanized after fabrication. Fiber washers must be commercial quality.
Galvanizing must comply with section 75-1.02B.
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