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Helena, Alabama. Helena (pronunciation [3]) is a city in Jefferson and Shelby Counties in the State of Alabama. Helena is considered a suburb of Birmingham and part of the Birmingham-Hoover Metropolitan Area. As of the 2010 census the population was 16,793.
The Highway 29 Channelization Project will rehabilitate the pavement, widen the shoulders, construct a two-way left turn lane, and improve the bicycle/highway/railroad crossing at Whitehall Lane. The project limits are in the Napa County city of St. Helena between Mee Lane and Charter Oak Avenue. 29 St. Helena Channelization Project Caltrans Project list for Napa County.