9-22 Use cantilever sign structures that meet the following design criteria:
A.Do not exceed an L/150 vertical dead load deflection at the end of the arm due to distortions in the arm and vertical support, where L is the length of the arm from the center of the vertical support to the outer edge of the sign.
B.Do not exceed an L/40 horizontal deflection at the end of the arm due to distortions in the arm and vertical support, as a result of design wind load. Fabricate attachment assemblies for mounting signs in a manner that allows easy removal of sign panels for repair.
906-4 Measurement and Payment
Supports, Overhead Sign Structure ____ will be paid for at the contract lump sum for each structure. Such price will be full compensation for design, fabrication, construction, transportation, erection of the complete overhead sign structure, supporting structure hardware, lighting support brackets, preparing and furnishing shop drawings, and attaching the signs to the overhead assembly. Supports, Overhead Sign Structure ____ does not include the cost for foundations as this item will be paid for elsewhere in the contract. Payment will be made under: Pay Item Pay Unit Supports, Overhead Sign Structure _____ Lump Sum
907-1 Description
Properly dispose of or stoc kpile signing components.
907-2 Construction Methods
A.General Repair any areas or materials within the project limits disturbed or damaged in performance of the work required under this section as directed by the Engineer.
B.Removal Do not remove existing signing components until required replacements have been erected and are available for use by traffic or are available for immediate replacement. Remove signing components by methods that will not damage other portions of the project or facility. Repair any damage by methods satisfactory to the Engineer. Cut a nd remove el ectrical conduit to at least 18 inches below finished ground elevation. Plug or seal the ends of the cut conduit by methods approved by the Engineer. Remove foundations, including any reinforced steel or anchor bolts, to a minimum depth of 2 feet below the finished ground elevation unless otherwise indicated by the contract. Promptly backfill and compact areas disturbed by removal of foundations with suitable materials and match the finished ground elevation. Seed disturbed areas in accordance with Section 1661.
C.Disposal All materials to be removed and disposed of will become the property of the Contractor. Promptly transport the materials from the project after they have been removed unless otherwise permitted by the Engineer. Promptly dispos e of the concrete, reinforcing steel and anchor bolts from the project.
9-23 (D) Stockpile
Before stockpiling, remove signs from supports. The Department maintains ownership of all materials to be stockpiled. Transport and stockpile designated items to locations approved by the Engineer. Sort and stockpile all materials neatly in stacks or storage bins. Repair or replace materials damaged in removal or while in storage.
907-3 Measurement and Payment
Disposal of ____ and Stockpile ____ will be measured and paid as the actual number of signing components acceptably disposed or stockpiled . Removal is incidental to stockpiling and disposal. Secondary signs will be incidental work in conjunction with the primary sign. Sign assemblies consisting of more than one sign panel will be considered one sign. Overhead sign systems include signs, supports, walkways and all electrical components. Sign systems include signs, supports and foundations. Supports include any foundations. Repair or replacement of any materials or areas within the project limits disturbed or damaged in performance of the work required under this section will be at no cost to the Department. Payment will be made under: Pay Item Pay Unit Disposal of Sign System, Overhead Each Disposal of Sign System, Steel Beam Each Disposal of Sign System, U -Channel Each Disposal of Sign System, Wood Each Disposal of Sign, A and B, (Ground Mounted) Each Disposal of Sign, A or B, (Overhead) Each Disposal of Sign, D, E or F Each Disposal of Sign, Milemarker Each Disposal of Sign, Overlay (Overhead) Each Disposal of Sign, Overlay (Ground Mounted) Each Disposal of Support, Overhead Structure Each Disposal of Support, Steel Beam Each Disposal of Support, U -Channel Each Disposal of Support, Wood Each Disposal of Lighting System Each Disposal of Lighting Fixtures Each Disposal of Walkway Each Stockpile Sign System, Overhead Each Stockpile Sign System, Steel Beam Each Stockpile Sign System, U -Channel Each Stockpile Sign System, Wood Each Stockpile Sign, A or B, (Overhead) Each Stockpile Sign, A and B, (Ground Mounted) Each Stockpile Sign, D, E or F Each Stockpile Sign, Milemarker Each Stockpile Support, Overhead Structure Each Stockpile Support, Steel Beam Each Stockpile Support, U -Channel Each Stockpile Support, Wood Each Stockpile Lighting System Each Stockpile Lighting Fixtures Each Stockpile Walkway Each
Source: North Carolina Standard Specifications for Roads and Structures, 2024 Edition. Pages 414–416 of 857.