Inside Lytle Tunnel
|Operator||Ohio Department of Transportation|
|Length||335 metres (1,099 ft)|
|No. of lanes||6|
The Lytle Tunnel is a vehicular tunnel that carries Interstate 71 (I-71) under the historic Lytle Park in Cincinnati, in the U.S. state of Ohio. It is a six-lane tunnel with three tubes. There is a two-lane southbound tube, a three lane-northbound tube, and a one-lane southbound tube that separates from the highway and serves as an exit ramp to the downtown area. The tunnel is ventilated by two grates in the northbound tube and the southbound exiting tube. It was completed in 1970. At 335 meters (1,099 feet), it is the longest vehicular tunnel in Ohio. It is also the only tunnel on I-71.
During the construction of the Lytle Tunnel, many historic buildings were razed for the project. The old Lytle Park was similar to a town square, with many Greek Revival buildings surrounding the park. On the park's east side is the Taft Museum of Art. A few of the original buildings remain, including the Literary Club of Cincinnati, the Anna Louise Inn, Guilford School building, and the Phelps Apartments.
A CB radio broadcast on channel 19, the most commonly used commercial trucking frequency, loops a warning about this turn and its hazards 24 hours a day, seven days a week.
During a period between January 2001 and May 2003, the tunnel was notorious for many truck accidents in the tunnel. The two main reasons for this were:
- Truck drivers were not obeying the 40 mph (64 km/h) warning signs at the beginning of the tubes.
- There was a sharp curve near and in the tunnel.
- Merzagora, Eugenio A (July 18, 2005). "Road Tunnels in United States < 1000 m, 9th revision". The World's longest tunnel page.
- Weathers, William A. (August 17, 2005). "Lytle Tunnel down to 1 lane for 10 days" (PDF). The Kentucky Enquirer. p. A1. Retrieved August 12, 2014.
- Garretson, Craig (August 17, 2002). "Speed still top culprit in truck wrecks". The Cincinnati Post. E. W. Scripps Company. Archived from the original on May 15, 2007.
- Pilcher, James (May 1, 2003). "ODOT announces plans to install radar speed-checkers outside Lytle Tunnel". The Cincinnati Enquirer. Gannett Company.
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