Evaluation of Modified Minnesota Swing-Away Mailbox

Report Number(s): 609731-5&6

Description: A mailbox and newspaper box mounted onto a swinging post assembly. The post assembly was anchored to the ground by being set inside a 2-inch square 12‑gauge × 64-inch-long perforated steel tube, which was embedded 48 inches deep into the base.  A collar was secured to the mailbox mounting tube. Additionally, a length of proof coil chain tethered the collar to the lower leg of the mount tubing to limit rotation. 

Test Level: 3

MASH Test Number: 3-60, 3-61, 3-62

Proprietary/Non-proprietary: Non-proprietary

Pass/Fail: Pass

Evaluation: Full-Scale Crash Testing

Sponsor: Washington State DOT