Question: Which canal, the North Shore Channel or the Eastside Canal, originates from a common diversion at Manor Street in Bakersfield, which also serves the Carrier Canal and Kern Island Canal?   
Context: The North Shore Channel is a drainage canal built between 1907 and 1910 to flush the sewage-filled North Branch of the Chicago River down the Chicago Sanitary and Ship Canal.  The sewage carrying duty has been largely taken over by the Chicago Deep Tunnel, but there are still occasional discharges due to heavy rains. Mill Creek is a linear park located in Bakersfield, California.  It runs along the Kern Island Canal between Golden State Ave. and California Ave. in downtown, although there is a gap between 19th St. and the BNSF railroad yard.  The center of the park is Central Park, the only park in downtown.  The park contains a lake with spray fountains and the “Mill Creek” bridge.  It is also home to the Bakersfield Museum of Art and the Bakersfield Community House. Buena Vista Canal is an irrigation canal in Kern County, California.  It originates from the Carrier Canal at Coffee Road.  The canal terminates at Lake Webb (and Buena Vista Lakebed) and the Kern River. Eastside Canal is an irrigation canal in Kern County, California.  It originates from a common diversion at Manor Street in Bakersfield, which also serves the Carrier Canal and Kern Island Canal.  The common diversion originates from the Kern River, about 1 mi south of Gordon's Ferry.  The canal terminates south of Bear Mountain Boulevard (SR 223), just west of Arvin. Beardsley Canal is an irrigation canal in Kern County, California.  It originates for the Kern River, east of Gordon's Ferry and just west of the First Point of Measurement.  It is the first diversion from the river in the San Joaquin Valley for agriculture irrigation (Hart Park has two canals, but are used exclusively for aesthetics and reconnect to the river).  It terminates at reservoirs located in Famoso, just east of SR 99 (Golden State Freeway). Calloway Canal is an irrigation canal owned by the North Kern Water Storage District in Kern County, California.  It originates from the Kern River, just east of Golden State Highway (SR 204 freeway) in Bakersfield.  It terminates at reservoirs located south of Whisler Road and east of SR 99 (Golden State Freeway), near McFarland. Kern Island Canal is an irrigation canal in Kern County, California.  It primarily irrigates farmland located on the Kern Lakebed, south of Bakersfield.  It originates from a common diversion at Manor Street in Bakersfield, which also supplies the Carrier Canal and Eastside Canal.  The common diversion originates from the Kern River about 1 mi south of Gordon's Ferry. Mill Creek is a district in Downtown Bakersfield, California.  It is primarily a mixture of residential and commercial on the east side of downtown.  Since the mid-2000s, the district has gone through major redevelopment.  These included, the development of the Kern Island Canal into a walking path (also called Mill Creek), the redevelopment of Central Park, construction of the Federal Courthouse, and construction of several new housing and commercial developments. Stine Canal is an irrigation canal in Kern County, California.  It originates from the Carrier Canal adjacent to SR 99 (Golden State Freeway).  It terminates at a reservoir on Bear Mountain Boulevard (SR 223), just east of Gosford Road. Carrier Canal is an irrigation canal in Kern County, California.  It originates from a common diversion at Manor Street in Bakersfield, which also supplies the Kern Island Canal and Eastside Canal.  The common diversion originates from the Kern River about 1 mi south of Gordon's Ferry.  There are additional diversions from the Kern River at Golden State Highway (SR 204 freeway) and Coffee Road.  The canal terminates at the Kern River, near Enos Lane west of Bakersfield.  For its entire length, it runs roughly parallel to the Kern River.
Answer: Eastside Canal