Guard Posts Art. 634.03
633.04 Method of Measurement. The complete removal and reerection of
the various types of steel plate beam guardrail will be measured for payment in feet (meters) in place at the location of reerection. The complete removal and reerection of the various types of traffic barrier terminals will be measured for payment in place at the location of reerection in units of each according to Article 631.12. The removal and reerection of the rail elements of steel plate beam guardrail and adjoining traffic barrier terminals will be measured for payment in feet (meters), measured from center to center of end posts. Excavation in rock will be measured for payment according to Article 502.12.
633.05 Basis of Payment. The work of complete removal and reerection will
be paid for at the contract unit price per foot (meter) for REMOVE AND REERECT STEEL PLATE BEAM GUARDRAIL, of the type specified, and at the contract unit price per each for REMOVE AND REERECT TRAFFIC BARRIER TERMINALS, of the type specified. Replacement of unsatisfactory rail elements and posts, except those damaged by the Contractor during removal, will be paid for according to
Article 109 — 04.
The work of removal and reerection of rail elements only will be paid for at the contract unit price per foot (meter) for REMOVE AND REERECT RAIL ELEMENT OF EXISTING GUARDRAIL. Replacement of unsatisfactory rail elements, except those damaged by the Contractor during removal, will be paid for according to
Article 109 — 04.
Excavation in rock will be paid for according to Article 502.13. SECTION 634. GUARD POSTS
634.01 Description. This work shall consist of furnishing and setting guard
posts.
634.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Guard Posts ....................................................................................... 1007.09
b.Preservative Treatment ..................................................................... 1007.12 CONSTRUCTION REQUIREMENTS
634.03 Preparation of Posts. The bottom of the posts shall be sawed
square, and the tops shall be rounded to a hemisphere. This sawing and rounding shall be performed at the source of supply, and not in the field. All posts shall be peeled by removing all of the rough bark and at least 80 percent of the inner bark. All knots and projections shall be shaved smooth and flush with the surrounding wood. Art. 634.04 Delineators
634.04 Preservative Treatment. The posts shall be pressure treated after
the sawing and rounding have been performed.
634.05 Setting Posts. The posts shall be set in compacted soil. The material
in the bottom of the post holes shall be compacted to provide a stable foundation. The posts shall be set plumb with the front faces forming a smooth line. After the posts are in place, the holes shall be backfilled in layers with approved materials compacted in such a manner as not to displace the posts from correct alignment. In lieu of setting posts in previously dug holes, the posts may be driven provided they are protected by a suitable driving cap, no damage is done to any portion of the post, they are driven plumb to the required depth and alignment with adequate lateral stability, and provided that the shoulders and adjacent slopes are not damaged from the driving operations. When, in the opinion of the Engineer, driving operations are producing unsatisfactory results, the posts shall be set in dug or bored holes.
634.06 Basis of Payment. This work will be paid for at the contract unit price
per each for GUARD POSTS. Excavation in rock will be measured and paid for according to Section 502. SECTION 635. DELINEATORS
635.01 Description. This work shall consist of furnishing, installing,
removing, and reinstalling delineator posts and reflectors.
635.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Metal Posts and Hardware for Highway Markers, Signs, and Delineators (Note 1) ........................................................... 1006.29
b.Reflectors for Delineators ................................................... 1097.01, 1097.03 Note 1. The hardware for attaching the reflectors to the posts shall be stainless steel. CONSTRUCTION REQUIREMENTS
635.03 General. Delineators shall be installed in the configurations, locations,
and spacing shown on the plans. If the designated spacing causes a delineator location to occur at a pier of an overhead structure, the delineator may be omitted. The color of the reflectors shall be the same as the adjacent pavement edge line.
635.04 Installing New Delineator Posts and Reflectors. Only one type of
reflector will be permitted within the limits of a contract. The installed posts shall be vertical and oriented so the face of the delineator shall be at 90 degrees to the centerline of the adjacent pavement.
Referenced in this section
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 576–577 of 1,217. View official source ↗