Interstate 475 or I -475 is an Interstate Highway in the U.S. state of Ohio. The highway forms the western beltway to Toledo, a larger city in the northwest of the state. The motorway forms a three-quarter ring and is 33 kilometers long.
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The I-475/US 23 fork on the northwest side of Toledo.
Near the suburb of Perrysburg, I-475 begins at an interchange with Interstate 75, the highway from Cincinnati and Dayton to Detroit. The highway then has 2×2 lanes at first and goes west, later north and crosses the Maumee River. From US 24, the highway has 2×3 lanes. One then crosses the Ohio Turnpike, which is formed by Interstate 80 and Interstate 90. However, there is no node with it. The interstate then heads north, and on the northwest side of Toledo, I-475 exits east, while US 23 continues straight on towards Ann Arbor, making a long bypass past the city of Detroit. I-475 then also has 2×3 lanes and ends on the north side of Toledo on Interstate 75.
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The I-475 was built fairly quickly as a bypass of Toledo, the first part opened in 1963 between US 20 and Sylvania, including a part of US 23. This was part of the major bypass of Detroit, US 23 in Michigan. This stretch of what would later become I-475 was only 1 kilometer long. The first major stretch of I-475 opened in 1967 around Perrysburg, connecting I-75 and US 24. In 1969 it was extended north to US 20, west of Toledo, and on to I-I in about 1971. 75 in northern Toledo.
Originally, the starting point of I-475 east of Perrysburg on US 20 was planned. In 1969 this was changed to I-75 south of Perrysburg, making the planned I-475 2 kilometers shorter.
Before 1993, the easternmost portion of I-475 between Monroe Street (OH-51) and I-75 had 2×3 lanes. Between 2010 and 2012, this section was partially reconstructed with modified connections and additional lanes to and from the interchange with I-75. The artworks of the node have also been replaced, but the configuration of the node has largely remained the same. On September 11, 2017, a diverging diamond interchange opened with State Route 25 in Perrysburg.
Between 2015 and 2021, I-475 was widened in two phases to 2×3 lanes between Airport Highway and US 23 along the west side of Toledo. The highway has been completely redeveloped here, all bridges to and over I-475 have been replaced. A half-cloverleaf with US 20 has been replaced by a SPUI. The interchange with US 23 has been partially reconstructed.
Beginning in June 2022, 5 miles of I-475 between US 24 and Airport Highway southwest of Toledo has been widened to 2×3 lanes. A diverging diamond interchange has also been constructed with US 20A, which previously had no connection.
|Exit 1 (south)||Exit 4 Maumee (US 24)||6 km||circa 1967|
|Exit 4 Maumee (US 24)||Exit 13 Ottawa Hills (US 20)||14 km||about 1969|
|Exit 13 Ottawa Hills (US 20)||Exit 20 (north)||11 km||about 1971|
I-475 does not connect to the Ohio Turnpike west of Toledo. Traffic from I-75 wishing to reach the Ohio Turnpike should follow I-75 and switch to the Ohio Turnpike near Perrysburg. Another option is to use the Maumee street network to reach the Ohio Turnpike.
|Exit 0 I-75||Exit 4 US 24||2×2||6 km|
|Exit 4 US 24||Exit 14 US 23||2×3||16 km|
|Exit 14 US 23||Exit 17 Monroe Street||2×2||5 km|
|Exit 17 Monroe Street||Exit 20 I-75||2×3||5 km|
By capacity, I-475 is fairly busy with up to 74,000 vehicles on the west side of Toledo. On the north side of Toledo, a maximum of 93,000 vehicles drive every 24 hours.