Skid-Mounted Single-Post Perforated Steel Tube Temporary Sign Support

Report Number(s): 0-6946-R2

Description: These test installations consisted of three main parts. A 36-inch square extruded, hollowcore plastic sign panel was secured to an approximately 11 ft long section of 1¾-inch square perforated steel tubing with two hex bolts with fender washers under the head of the bolt. This tubing was inserted into a 4-ft long sleeve fabricated from 2-inch square perforated steel tubing and secured with a bolt, nut, and fender washers such that the bottom corner of the sign was approximately 84 inches above grade. The sleeve was welded to an I-shaped skid fabricated from 1¾-inch and 2-inch square perforated steel tubing. All square perforated tubing was 12 gauge. Excluding the four 40-lb sandbags, the test article weighed 63 lb. The skid-mounted sign support systems were placed on a concrete apron but were not secured to it. The installation for Test No. 469468-7-1 was placed with the sign panel perpendicular to the vehicle path. For Test No. 469468-7-2, the sign panel was oriented parallel to the vehicle path.

Test Level: 3

MASH Test Number: 3-72

Proprietary/Non-proprietary: Non-proprietary

Pass/Fail: Pass

Evaluation: Full-Scale Crash Testing

Sponsor: TxDOT & FHWA