Interstate 475

Interstate 475 may refer to:

Interstate 475 (Georgia)

Interstate 475 (I-475) is a 15.83-mile-long (25.48 km) auxiliary Interstate highway in Georgia, splitting off from I-75 and bypassing Macon. It is also unsigned State Route 408 (SR 408). This is the preferred route for through traffic, as I-75 enters downtown Macon and reduces to four lanes (two in either direction; undergoing widening), and has a 70-mile-per-hour (110 km/h) speed limit, in addition to the highway interchange with I-16.

Route description

I-475 carries six lanes (three in each direction) throughout its entire route (expanding to eight lanes at both junctions with I-75).

The road has also been equipped with traffic cameras, which are a part of the Georgia Navigator system that has been extended via fiber optics all the way from metro Atlanta, nearly 100 miles (160 km) to the north-northwest.

History

The number 475 had originally been assigned to I-675 and SR 400, which were to have been a single north–south expressway through the immediate east side of Atlanta.

Tennessee State Route 475

Interstate 475 (I-475)/State Route 475 (SR-475) was a proposed Interstate highway and state highway in Knox and Anderson counties, within the eastern part of the U.S. state of Tennessee. The proposed route would have allowed through traffic on I-75 to bypass the city of Knoxville. It was planned to begin at the I-40/I-75 split and travel northeast through the communities of Solway and Bull Run, then join I-75 again northwest of Heiskell.

Route description

I-475/SR-475 was proposed as a four-lane divided highway with full access control and a 70 mph (110 km/h) design speed. Upon completion, this route was expected to be added into the National Highway System and would have also been designated as a Tennessee Scenic Parkway or State Scenic Highway. This route was also being studied by TDOT as a potential toll corridor and may have been planned to be extended to I-40 near mile marker 407.

History

With the idea originally conceived in the mid 1990s, the Knoxville Parkway was dubbed the "orange route" in the press. The route was cancelled on June 25, 2010 due to changing traffic needs and high cost. The "no build" option was selected because projections showed that it would divert less traffic from I-40/I-75 than previously expected, and the estimated one billion dollar cost was prohibitive.