Minnesota Department of Transportation (MnDOT) · 2025 Standard Specifications for Construction
Section 3401 — Flanged Channel Sign Posts
Minnesota 2025 Standard Specifications for Construction, Section 3401. Full text, cross-references and related pay items on BuildSpec.
3401 FLANGED CHANNEL SIGN POSTS 3401.1 SCOPE Provide rerolled rail steel and comparable new billet steel posts for signs, delineators, and guide posts. 3401.2 REQUIREMENTS A Material Use posts made of rerolled rail steel or a new billet steel meeting the mechanical requirements of ASTM A499, Standard Specification for Steel Bars and Shapes, Carbon Rolled from ’T’ Rails, Grade 60. For rails weighing at least 91 pounds per yard of length, use steel meeting the chemical requirements of ASTM A1, Standard Specification for Carbon Steel Tee Rails. B Length Use posts with lengths within 1/2 inch as…
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