Video: How to keep a gasholder from collapsing under its own weight

How to keep a gasholder from collapsing? Tom Evarts, Founder and President of Yankee Steeplejack Co., takes us on site to the 1888 Concord, NH Gasholder.

Evarts describes the emergency stabilization work needed to prevent catastrophic loss of this last-of-its-kind structure. The New Hampshire Preservation Alliance listed the Gasholder on its Seven to Save list in 2020 because of its national significance and redevelopment potential after property owner Liberty announced plans to seek a demolition permit due to the imminent risk of collapse.

This 3-minute video was produced by John Gfroerer for the Preservation Alliance and the Concord Historical Society.

In the next video in the series, Evarts is joined by John Wathne, Founder-Principal of Structures North Consulting Engineers, who shares what makes this project stand out among many he has engineered, including stabilizing the New Jersey State House and the clock faces on Philadelphia’s Independence Hall.  

Interested in volunteering for the Save Our Gasholder effort? Give us a call at 603-224-2281 or email projects@nhpreservationalliance.org.