00840.00 Description
00840.00 Scope - This Work consists of furnishing and installing delineators and milepost marker
posts at locations shown or established. Materials
00840.10 Materials - Furnish Material s meeting the following requirements:
Barrier Markers ................................................................................... From QPL Delineator Reflective Sheeting (Type III and Type IV) ......................... From QPL Flexible Delineators ............................................................................. From QPL
00840.11 Galvanized Milepost Marker Posts - Furnish milepost marker posts meeting the following
requirements:
a.General - Fabricate milepost marker posts from steel sections meeting either of the following requirements: Metal Properties Minimum Yield Minimum Ultimate Grade Strength, ksi Strength, ksi Hot-rolled carbon steel - min. carbon content 0.32% 40 70 Hot-rolled rail steel * 50 80 * As defined in U.S. Department of Commerce Commercial Standard 1CS 150-48, rail steel products shall be rolled from standard tee- section steel rails. No other mat erials, such as those known by the terms "rerolled", "rail steel equivalent", and "rail steel quality", shall be substituted. Fabricate milepost marker posts using channel sections of the nominal dimensions as shown, subject to the manufacturer's toleranc es in dimensions, and a tolerance in weight of 3.5 percent in any one shipment and 5 percent under for any one post, and a tolerance in length of 1 inch under and 2 inches over. Ensure the milepost marker posts are straight and free of sharp corners and rough or burred edges or surfaces.
b.Multiple Punching - Milepost marker posts with holes in addition to those called for on the Plans will be acceptable provided that the critical net width of the section measured on the frontal plane projection of the post is not less than 2 1/2 inches.
c.Galvanizing - Galvanize milepost marker posts after fabrication according to AASHTO M 111 (ASTM A123).
d.Acceptance - Acceptance of milepost marker posts will be according to 00165.35. Accompany each shipment of support posts with a quality compliance certificate. 00840.80 867 Construction
00840.40 Lines, Grades, and Preparation Work :
a.Delineator Posts - Install delineator posts to the lines, grades and spacings shown and as established. To avoid difficult installation at any individual post site, the spacing may be varied 5 percent in either direction and may deviate from line by 6 inches in either direction. Remove vegetative growth, litter and debris from the post sites.
b.Milepost Marker P osts - Locate and install milepost marker posts as shown.
00840.41 Installation of Posts - Set posts firmly into the ground and vertical. Remove and discard
posts that become split, cracked, twisted, or bent, or whose tops become badly misshapen during installation.
a.Embedment Depth - Field verify post length. Posts set in sandy, gravelly or other unconsolidated material may require an anchor system or need to be longer to provide adequate anchorage. Posts may be shortened to avoid unnecessary penetration in solid Rock or in large Rock fragments. If set in Rock , drill a 9 inch deep hole, 1 inch greater in diameter than the large dimension of the post, and grout in place with a fine mortar grout.
b.Guardrail Locations - At wood guardrail post installations, attach Type 4 delineators (alternate 1, plastic or alternate 2, steel) to the wood guardrail posts as shown on the Standard Drawings . At metal guardrail post installations, install full length Type 1, 1U, or 2 ground mounted delineators behind the rail, adjacent to metal guardrail posts.
c.Concrete Barrier Locations - At concrete barrier installations, attach Type 5 delineators to the concrete barrier according to the manufacturer's recommendations and as shown on the Standard Drawings .
00840.42 Target Members for Delineator Posts - Assemble, fasten, set and align target members
and reflective material appropriate to the type and color of delineators as shown. Attach reflective sheeting to the targets as recommended by the manufacturer.
00840.43 Signs For Milepost Marker Posts - Assemble, fasten, set, and align milepost marker
signs and object marker signs according to Section 00940 and as shown. Finishing and Cleaning Up
00840.70 General - Remove and dispose of excess excavated materials, litter, and debris resulting
from the operations according to 00290.20. Finish the surface around the support to match the surrounding surface or as shown. Measurement
00840.80 Measurement - The quantities of delineators and milepost marker posts will be measured
on the unit basis. 00840.90 868 Payment
00840.90 Payment - The accepted quantities of Work performed under this Section will be paid for
at the Contract unit price, per unit of measurement, for the following items: Pay Item Unit of Measurement
a.Delineators, Type ____ ......................................................................... Each
b.Milepost Marker Posts .......................................................................... Each In item (a) the type of delineator will be inserted in the blank regardless of the color or number of reflectors and targets. Payment will be payment in full for furnis hing and placing all Material s, and for furnishing all Equipment , labor, and Incidental s necessary to complete the Work as specified. No separate or additional payment will be made for preparation Work , earthwork, grouting, backfilling, or cleaning up. Signs mounted on milepost marker posts will be paid for according to 00940.90.
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Source: Oregon Standard Specifications for Construction, 2024 Edition. Pages 932–934 of 1,268. View official source ↗