Dive summary:

• A Connecticut company now offers flood-barrier panels that can be installed in urban settings where there is a garage entrance or other down-sloping area; the panels can be removed when the high water has receded.
• The panels from Walz & Krenzer, Inc. target openings of 10 feet or more and 6 or more feet high and use a lip sealing system.
• The panels, which can be connected side by side and be stacked, have some leaking between them, but the company says it is far below what Federal Emergency Management Agency rules allow.

From the article:

For larger panels that may be difficult to lift, panel mounted rollers allow larger panels to be positioned and installed with ease. ...