December 20, 2023

The Armstrong Tunnel rehabilitation project reached an important milestone recently. Crews began installing new custom panels along the interior walls of the inbound tunnel, replacing the deteriorated tiles that previously lined the walls.

By the time the project is complete, 1,260 panels will have been installed in both the inbound and outbound tunnels. The new roughly 8’ x 4’ panels are non-combustible, fire-resistant calcium silicate boards that are reinforced with fibers and fillers. They are coated with Ceramicoat, which protects them from salt, exhaust fumes, oils, rubber tire dust, and other pollutants and deposits. The coating also makes the panels easy to clean with just water.

The project remains on schedule, and the inbound tunnel is expected to reopen this winter. After the inbound tunnel reopens, crews will close the outbound tunnel and sidewalk. That closure is expected to end in summer 2025.