in its current form since it was operated as the Peninsula Commute by the Southern Pacific Railroad in the late 19th century, but proposals for electrifying the line began as early as 1992. The project lay dormant due to lack of funding until Caltrain agreed to share its tracks with the California High-Speed Rail Authority. CalMod will electrify of tracks between 4th and King station and Tamien Station and plans to be completed by 2024. New electrical infrastructure includes installation of approximately of 25 kV 60 Hz single-phase AC overhead contact lines and ten new power stations (two traction power stations, a switching station approximately halfway along the line, and seven paralleling stations). Delaware, Lackawanna and Western Railroad / Morris and Essex Railroad What are now New Jersey Transit's Morris & Essex Lines (the Morristown Line and Gladstone Branch) and Montclair-Boonton Line were electrified by the Delaware, Lackawanna and Western Railroad at in 1930/31. By August 1984 the lines had all been converted to by NJ Transit. Denver RTD In 2015 a new commuter rail system commenced operation in the Denver metropolitan area with a new electrification network operated at . Lines emanate from Denver Union Station and run to Denver International Airport, Westminster, and Wheat Ridge, and Thornton. Illinois Central Railroad The Illinois Central Railroad electrified its three commuter lines serving Chicago in 1926 pursuant to ordinances passed by the city. The IC commuter lines remain electrified and are now operated as Metra Electric. The catenary is energized at and serves four tracks of commuter operations. Two tracks are unelectrified and used for freight and Amtrak service to downstate Illinois and beyond. Long Island Rail Road The Long Island Rail Road's electrification was initiated in the first decade of the 20th century while it was owned by the Pennsylvania Railroad, which was building tunnels under the Hudson River and East River to gain access to Manhattan. The first segment of the LIRR to be electrified was the trackage between the Atlantic Avenue terminal in Brooklyn and Jamaica station. Electrification extended east of Jamaica to the Belmont Park station in 1905. In 1910, the opening of Pennsylvania Station (New York City) ushered in electric service between that station and Jamaica. The LIRR's Port Washington Branch was rebuilt and electrified by 1918. By 1934, LIRR branches to Mineola, Hempstead, West Hempstead, Far Rockaway, Long Beach, and Babylon were electrified. In 1970,