Belle Isle "Trolley" tunnel
From the application for national historic designation fro Belle Isle:
The basic layout of the current approach was established during the early 20thcentury. In 1906an amusement park was constructed on the east side of the Belle Isle Bridge along thewaterfront, adjacent to a large brewery complex. The amusement park, commonly referred to as“Electric City” [[as well as several other names), quickly expanded. It eventually took over thebrewery site as well as a narrow strip of land on the west side of the bridge adjacent to the StoveWorks, thereby extending along the entire waterfront on both sides of the bridge. When the BelleIsle Bridge burned in 1915, a temporary bridge was constructed slightly to the west of the bridgecrossing, in order to accommodate automobile travel while the new bridge was beingconstructed. In order to accommodate the approach to this temporary bridge, the portion ofElectric City located on the west side of the main bridge was razed. When the new permanentbridge was constructed in 1923, the intersection of East Grand Avenue and Jefferson Avenuewas configured to allow access to a trolley tunnel underneath the bridge. After being plagued bya number of fires, the remainder of Electric City was condemned by the city and torn down in1928. A park was constructed in its place on the east side, named “Gabriel Richard Park” in 1936for the influential French priest who served Detroit during the late 18th and early 19th centuries asa Catholic pastor for Detroit, missionary to the Indian tribes in the area, a newspaper publisher,school promoter, and Congressman.The only building left on the east side of the approach was the former 1921 Belle Isle CoachStation, which was demolished in 1980. During the restoration of the General Douglas A.MacArthur Bridge in 1986, the intersection of East Grand Avenue and Jefferson Avenue wasonce again redesigned, and the trolley tunnel removed.