KMOX 1120AM

National Parks Service

(credit: KMOX/Tanya Sinkovits)

Report: Arch Corrosion/Staining is Just a Cosmetic Annoyance

A Chicago engineering firm has just completed a study of the monument. They says the corrosion is simply discoloring, probably from the welds that hold the arch’s sections together.

09/24/2012

Follow

Get every new post delivered to your Inbox.

Join 3,820 other followers