<P> Due to funding constraints with IDOT, the Illinois General Assembly authorized the Illinois State Toll Highway Authority (ISTHA) to plan and construct both the Illinois 53 extension and the Richmond - Waukegan Expressway in 1993 . The latter project has been dormant since the mid-1990s, mainly due to major environmental complications along the route (the proposed corridor would run through two sensitive conservation areas: Glacial Park and the Volo Bog). While the project has not been officially cancelled, this leg of the highway will likely never be built due to the aforementioned environmental impacts . However, the Illinois Tollway has moved forward with the main Illinois 53 extension . </P> <P> The extension has been opposed by several organizations, notably the Illinois chapter of the Sierra Club, and many residents of Long Grove, which lies in the path of the highway . The Sierra Club opposes the roadway extension because it would be routed through wetlands and the group has concerns about suburban sprawl and increased pollution . </P> <P> Proponents of the tollway argue that congestion in Lake County has already reached economically damaging levels, that the existing network of roads in the county is insufficient, and that future projections call for extensive sprawl to continue regardless of the presence of a new highway . In an April 2009 non-binding referendum, registered voters in Lake County approved (76% yes to 24% no) the proposal to extend IL 53, with a 16% turnout rate . </P> <P> The extension is now proposed as a limited - speed (45 mph, 72 km / h) tolled parkway, and it is currently under study by the Illinois Route 53 / 120 planning council . </P>

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