Walz & Krenzer, Inc. (an Atlas-SSI company)
Associated with the largest flood closures in the New York system - the watertight doors the MTA closes ahead of coastal storms at the Queens Midtown and Hugh L. Carey tunnels. The MTA confirms eight doors installed in 2017, each over 20 tons and 29 feet wide by 14 feet high.
Credentials & verification
- Years in business
- Founded 1939
Services
Service area
New York City · New York State · Connecticut · New Jersey · Nationwide
Our verification notes
Attribution gap, stated plainly: the MTA and two independent outlets confirm the tunnel doors exist with matching specifications, but none of them names the manufacturer. The only third-party record tying this firm to the contracts is a manufacturer-submitted listing on an independent specification platform, which is semi-independent at best. Also note the company was acquired by Atlas-SSI in 2026. Where dimensions conflict, the MTA figures are authoritative.
Sources checked
- https://www.mta.info/press-release/photos-mta-performs-flood-door-testing-hugh-l-carey-and-queens-midtown-tunnels
- https://www.arcat.com/company/walz-krenzer-inc-36439-walzkren/projects/50-queens-midtown-tunnel-and-the-hugh-l-carey-tunnel-watertight-doors
- https://www.thedrive.com/news/15909/nyc-installs-massive-apocalyptic-floodgates-in-car-tunnels-to-fend-off-the-next-big-storm
Last verified 2026-08-13. This is an independent listing, not an endorsement, and we are not affiliated with Walz & Krenzer, Inc. (an Atlas-SSI company). Confirm the current license, insurance and references directly before signing any contract.