852.04 Overh Ead Sign Structures
852.01 Description
This work consists of providing and constructing overhead sign structures on prepared footings.
852.02 Materials
Provide materials for overhead sign structures in accordance with Section 720, “Overhead Sign Structures.” Provide materials for concrete footings in accordance with Section 804, “Concrete Footings.” Provide drilled shaft footings in accordance with Section 516, “Drilled Shaft Foundations.” CSL tubes will n ot be required.
852.03 Equipment — Vacant
852.04 Construction Methods
A.Design Use general data in accordance with the AASHTO Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals to design overhead sign structures. Submit shop drawings to the Resident Engineer for approval before construction.
B.Welding Qualify procedures, welders, and welding in accordance with Subsection 720.03, “Welding Requirement,” and AASHTO/ANSI/AWS D 1.1.
C.Fabrication Provide overhead sign structures free of sharp edges, irregularities, misfits, or structural deficiencies, as approved by the Resident Engineer. Complete overhead sign structures as shown on the Plans. Ensure that all anchor bolts, base plate s, and flange plates are properly aligned to prevent unacceptable distortion of the structure upon final installation. In the event that the drilled shaft and anchor bolts are installed before the fabrication of the structure, coordinate with the fabricat or to ensure that the base plates and flanges are fabricated so that proper alignment of all bolt holes is achieved. In the event that the structure is fabricated before the installation of the drilled shaft and anchor bolts, coordinate with the structure fabricator to ensure that the anchor bolt installation allows for proper alignment of all bolted connections. OVERHEAD SIGN STRUCTURES 852.04
D.Shipping and Erection Deliver upright supports and truss structures to the project immediately before the erection of the complete structure, including signs. Provide an erection plan to the Resident Engineer for approval prior to installation. Attach fixtures and other components after erection of the complete structure. Protect the surfaces of the structures to prevent damage during transpor tation and erection. The Resident Engineer will reject damaged structures that cannot be re -galvanized or metalized in accordance with AWS 2.21M/C2.21 Recommended Practices for Metalizing.
E.Electrical Requirements Provide electrical equipment, materials , and installation methods in accordance with Section 801, “Performance and Operational Tests for Highway Lighting and Traffic Signals.” If there is no electrical power at the site, provide temporary power to show that fixtures a nd equipment are installed in accordance with Section 801, “Performance and Operational Tests for Highway Lighting and Traffic Signals.”
852.05 Method of Measuremen T — Vacant
852.06 Basis of Payment
The Department will pay for ea ch pay item at the contract unit price per the specified pay unit as follows: Pay Item: Pay Unit:
A.ALUMINUM OVERHEAD SIGN STRUCTURE Each or Linear Foot [Meter]
B.GALVANIZED STEEL OVERHEAD SIGN STRUCTURE Each or Linear Foot [Meter]
C.OVERHEAD SIGN STRUCTURE, MONOTUBE TYPE A Each Each
E.OVERHEAD SIGN STRUCTURE, MONOTUBE TYPE C Each Each
G.GALVANIZED STEEL OVERHEAD SIGN STRUCTURES -BRIDGE MOUNTED Each Linear Foot [Meter]
I.UPRIGHTS FOR OVERHEAD SIGN STRUCTURE Each
J.TESTING OF ALUMINUM WELDS Lump Sum
K.REPLACE ALUMINUM TUBING IN OVERHEAD SIGN STRUCTURE Pound [Kilogram] Each The Department will pay for drilled shaft footings as Drilled Shafts , in accordance with Section 516, “Drilled Shaft Foundations.”
853.04 Delineators
The Department will pay for the following items separately in accordance with Section 802, “Electrical Conduit” ; Section 803, “Pull Boxes and Ground Boxes” ; Section 804, “Concrete Footings ”; Section 809, “Luminaires” ; and as shown on the Plans: Internal walkway and hand rail, External walkway and hand rail, Sign lights, Electrical conduit, Wiring, Pull boxes, and Reinforcing steel in footings and concrete footings. SECTION 853 DELINEATORS
853.01 Description
This work consists of providing and installing delineators and posts.
853.02 Materials
Provide materials in accordance with Section 710, “Delineators.”
853.03 Equipment — Vacant
853.04 Construction Methods
Install delineator units on the posts at the heights shown on the Plans or directed by the Resident Engineer. Drive or set posts to the line and grade shown on the Plans. Ensure the posts are driven plumb and firm in the ground, spaced as shown on the Plans. Use a Resident Engineer approved driving cap for driven posts. Do not damage the tops of posts during driving operations. Remove and replace d amaged posts as directed by the Resident Engineer, at no additional cost to the Department. Dig the post holes to the depth and spacing shown on the Plans when setting posts in concrete. Backfill post holes with Resident Engineer approved material in layers no greater th an 6 in [150 mm] deep. Compact each layer and preserve the alignment of the posts. Provide bolts and fasteners of the type, length, diameter, and material shown on the Plans, or an equivalent approved by the Resident Engineer. At bridges, fasten the delin eators to the bridge handrail posts or parapet wall using brackets and fasteners for the various types as shown on the Plans.
Source: Oklahoma Standard Specifications for Highway Construction, 2019 Edition. Pages 874–875 of 935.