632.01 Description.
b.Payment will be made under Item No .: 631-C Guardrail Reset – per linear foot {meter} 631-E Guardrail End Anchor ** Reset – per each 631-F ** Relocated - per linear foot {meter } 631-G Guardrail End Anchor *** Relocated - per each * Steel Beam Guardrail Class ____ , Type ____ ; Aluminum Beam Guardrail Class ____ Steel Rectangular Tube, Barrier Rail; Extruded Aluminum Tube, Barrier Rail ** Type 1, 2, 3, etc. HEADLIGHT GLARE SCREEN
632.01 Description.
This Section shall cover the work of furnishing and erecting headlight glare screens in accordance with the details shown on the plans and as specified herein at the locations shown on the plans or designated. Where optional types are permitted, the same type, once selected, shall be used throughout the project.
632.02 Materials.
Materials furnished for use shall meet the requirements of Division 800, Materials, and th e requirements noted in the plans.
632.03 Construction Details.
All construction methods and equipment employed in installation of the headlight glare screen shall be in accordance with the requirements shown on the plans and those of the manufacturer of t he materials being used and good erection practices, so that the resulting structure will provide the expected service and be complete in every detail. Headlight glare screen may be supported by ground -mounted posts or posts attached to guardrail posts, rectangular tubing barrier rail, along the top of the concrete median barrier wall or other special mounting as shown on the plans.
632.04 Method of Measurement.
Quantities of Headlight Glare Screen to be paid for will be determined by the linear foot {meter } from actual measurements along the line of the completed headlight glare screen.
632.05 Basis of Payment
a.Unit Price Coverage . The accepted quantity of Headlight Glare Screen, measured as provided above, will be paid for at the respective contract un it bid price for each separate type of mounting. The said unit price shall be payment in full for furnishing all materials and for all labor, tools, equipment, and incidentals necessary for performing all work involved in constructing the headlight glare s creens, complete in place, in accordance with the details shown on the plans. When plans show the Headlight Glare Screen to be mounted on existing facilities, the unit bid price shall also include the necessary drilling, welding, and/or other special treat ment of the existing facility for satisfactory attachment of the posts.
b.Payment will be made under Item No .: 632-A Headlight Glare Screen, ( * Type of Mounting) - per linear foot {meter} * Example: Ground mounted; Mounted on Guardrail Posts; Mounted on Barrier Rail , Rectangular Tubing; or Mounted on Concrete Median Barrier.
634.03 Construction Requirements.
SECTION 634 CHAIN LINK INDUSTRIAL FENCE
634.01 Description.
This Section shall cover the work of furnishing and installing, complete in place, commercial chain- link fence on posts and frames with either standard ground mounting or mounted on structures (bridges, retaining walls, etc.) as required by the plans, at locations shown on the plans or designated, all in accordance with the details shown on the plans and these specifications.
634.02 Materials.
a.General . All materials shall conform to the requirements of Division 800, Materials, and shall be in accordance with details shown on the plans. Special attention is directed to Section 871.
b.Special Mounted Fence . When the fence is to be installed on structures which cannot utilize the standard method provided by the regular fence drawings, the type of post installation, etc., will be shown on the plans. Requirements for such installations will be shown on the plans. All miscellaneous steel used in such installations or mounting assemblies shall be of ASTM A 36 steel or approved equal and galvanized in accordance with ASTM A 123, unless such is otherwise provided by the plans.
634.03 Construction Requirements.
a.General . All construction methods and equipment employed in the setting of fence shall be in accordance with requirements of the specifications of the manufacture of the fence materials being used and such that the res ulting structure will provide the expected service and be durable and complete in every detail.
b.Clearing Fence Line . All brush, stumps, logs, large roots, humps of earth, boulders or debris which would interfere with proper construction of the fence in the required location and present a pleasing and acceptable profile along the tops of posts shall be removed before starting fencing operations. Sound standing trees in the fence line shall be removed or trimmed as directed to provide adequate working roo m. The clearing and/or grading of the fence line and the disposal of material removed shall be accomplished in such a way that trees and shrubs on the remainder of the right of way will not be damaged. Breaks in profile of the fence shall be spread over vertical curves of sufficient length to insure a pleasing appearance.
c.Setting Posts . Posts and anchorages shall be set at intervals shown on the plans or directed. The posts shall be set plumb and true in alignment on the side which the fabric is to be a ttached. All end and corner posts, brace posts, pull posts and gate posts shall be set in concrete in accordance with plan details. Line posts may be set in place by one of the following methods: (1) set in concrete in the same manner detailed in the plans for brace posts, (2) driven, provided soil conditions are suitable and full embedment depth is obtained. When posts are driven, methods shall be used to protect the posts from damage due to driving operations. Damaged posts shall be repaired as directed o r removed and replaced without additional cost to the State, Regardless of the installation method used, a stable fence frame shall be obtained. Where unstable soil is encountered, the use of longer posts, concrete anchorage or other approved post stabiliz ation methods shall be required. Where fence is over solid rock or other hard unyielding material is encountered, special treatment may be authorized. When installing fence through areas where other than ground installations are required, special attention shall be given to the attachment of the mounting assemblies to the structure. Anchor bolts, etc. shall be cast into structures wherever possible. Other types of attachments, if permitted by the plans, must be approved by the Engineer before use. In any ev ent, anchorage must be so installed as to present a neat workmanlike appearance.
d.Constructing Fence . Chain link fence shall be stretched taut and securely fastened to each post by means of approved metal bands or No. 9 gage {3.75 mm} wire spaced not mo re than 12 inches {300 mm} apart on posts and
Source: Alabama Standard Specifications for Highway Construction, 2022 Edition. Pages 519–519 of 934.