Patent ID: 6886813

Claim:
A breakaway support post for mounting a guardrail thereon as part of a highway guardrail system comprising: an elongated body having an upper portion and a lower portion; a rotatable coupling assembly disposed between the upper portion and the lower portion of the elongated body; the upper portion of the elongated body having a first end; the lower portion of the elongated body having a second end which may be inserted into the soil adjacent to a roadway; means for attaching the guardrail adjacent to the first end of the upper portion; and means for releasably securing the upper portion of the elongated body in a generally collinear alignment with the lower portion of the elongated body such that an impact with one end of the attached guardrail will tend to rotate the upper portion of the elongated body relative to the lower portion of the elongated body and the breakaway support post will resist a rail face impact with the guardrail.