1122 Third Avenue

1122 Third Avenue, or "New Main" is a telephone equipment building in downtown Seattle, WA. The building was constructed in 1956, and expanded in 1970 to fill the entire lot. At the time of its expansion, variance had to be requested from the city for the bas relief artwork that projected outward from the building on 3rd Avenue. The building was initially constructed to replace the 1924 telephone building, a block north at 1200 Third Ave.

This equipment includes the largest No. 5 Crossbar office in the country at the time of its construction, a 4A toll switching system, and telegraph and toll test equipment.