Editing Columbia, Pennsylvania (section)

====Changes in the new century====
By 1900, the town's population had grown to over 12,000, with a 50% increase from 1880 to 1900. Some of the items produced by its industries were silk goods, lace, [[Pipe (fluid conveyance)|pipe]], laundry machinery, stoves, iron toys, flour, lumber, and wagons. By this time Wright's Ferry had ceased its operations, having been supplanted by rail and bridge traffic.

In 1930, yet another bridge, the [[Columbia–Wrightsville Bridge|Veterans Memorial Bridge]], was opened to improve traffic flow across the Susquehanna. It first opened as a [[toll bridge]]; to avoid the toll, in the coldest winter months some daring motorists would cross on the firmly frozen river.  Later that same decade, many of the city's brick [[sidewalk]]s were converted to concrete; the bronze plaques of the concrete installers are still visible today.