Colorado State Highway 35
State Highway 35 (SH 35) is an unsigned state route in the city of Denver, Colorado. It is long. Its southern end is in the vicinity of Interstate 70 (I-70) and its northern end is 53rd Place. An expansion was planned but funding has not materialized. Route description. The route begins as Quebec Street near I-70. North of I-70, it becomes Northfield Quebec Street. It crosses Sand Creek and intersects I-270 and Northfield Boulevard; the interchanges overlap one another. The route then continues as Quebec Street, intersects 52nd Place and ends at 53rd Place, but Quebec  Street continues northward towards Commerce City. History. The route was established in 1972 as a road to Stapleton International Airport (now closed). It was planned to be extended in several locations, but it remains a short highway. Government records from the 1970s indicate that the route would have run all the way from the intersection of Quebec St. and Hampden Avenue north to I-80S (now I-76), southwest of Barr Lake, but construction never began, even though the project was still listed in transportation plans until the late 1990s. The route's southern end was at the Stapleton terminal access road  from 1972 to 2000, when it was moved up to I-70. From 1972–1977 the northern end of the highway ended at I-70, then moved to 56th Ave, and then to I-270 in 1988 before ending around 53rd Place in the mid-1990s. Future. Because of congestion in the areas around Quebec Street an extension of SH 35 into a major highway in the eastern metropolitan Denver area has been proposed. In theory, it would be useful to alleviate traffic jams in the Quebec St. area.