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| Interstate 275 (Tennessee) | |
|---|---|
| State | TN |
| Route | 275 |
| Length mi | 2.98 |
| Established | 1975 |
| Terminus a | Downtown Knoxville |
| Terminus b | Knoxville |
| Counties | Knox County |
| Spur of | 75 |
Interstate 275 (Tennessee) is a short auxiliary Interstate Highway forming a connector loop through central Knoxville in Knox County, serving downtown access between I-75 and I-40. The route, authorized in the 1970s during expansions of the Interstate Highway System, provides direct access to civic institutions and landmarks including University of Tennessee, Knoxville Civic Auditorium, Tennessee Theatre, and Market Square.
I-275 begins at a junction with I-40 and I-75 near the Old City district, proceeding north as a short controlled-access spur paralleling the Tennessee River corridor and the NC&StL alignment. The freeway passes adjacent to Market Square, World's Fair Park, and the Knoxville Convention Center, providing ramps to US 441 and US 11 near Sevier Avenue. Northbound lanes overlook the riverfront and cross urban rail lines used by Norfolk Southern Railway and CSX Transportation. The route terminates at an interchange with I-640/I-75 north of downtown, offering connections toward Farragut and Oak Ridge via regional arterial roads. Right-of-way and interchange design reflect proximity to the Knoxville Station historic district and the Old Gray Cemetery.
The corridor for I-275 was proposed in early planning documents by the Bureau of Public Roads alongside proposals for I-75 and I-40 during the postwar era, influenced by urban renewal initiatives championed by the Knoxville Chamber of Commerce and recommendations from planners associated with Tennessee Department of Highways and Public Works. Federal approval under the Federal-Aid Highway Act of 1956 enabled funding; construction contracts were awarded in the early 1970s to firms including Bechtel Corporation and regional contractors. The freeway opened to traffic in 1975 following ribbon-cutting attended by representatives from the Tennessee Department of Transportation and elected officials from Knoxville's mayoral office and the Tennessee General Assembly. Early alignments required coordination with the Knoxville and Holston River Railroad and relocation of utilities overseen by the United States Army Corps of Engineers due to proximity to the Tennessee River floodplain. Subsequent modifications in the 1990s addressed interchange capacity in response to growth near Oak Ridge National Laboratory and redevelopment of downtown Knoxville spurred by events such as the 1982 World's Fair.
The entire route lies within Knox County. Exits provide access to downtown districts, cultural venues, and major US routes: - Mile 0.00: Interchange with I-40/I-75 — access toward Nashville via I-40 and Cincinnati via I-75. - Mile 0.75: Exit to US 11/US 70 — access to Old City and Market Square. - Mile 1.50: Exit to US 441 (Henley Street) — access to University of Tennessee, Knoxville Zoo vicinity and World's Fair Park. - Mile 2.98: Terminus at I-640/I-75 — connections toward Farragut and Clinton via regional corridors.
Planning agencies including Tennessee Department of Transportation and the Knox Regional Transportation Planning Organization have proposed capacity and safety upgrades for the I-275 corridor to accommodate downtown redevelopment linked to projects by the Knoxville Utilities Board and the Knoxville Area Transit Authority. Proposed improvements range from interchange reconfiguration near World's Fair Park to noise mitigation adjacent to historic districts such as Fort Sanders; studies reference funding mechanisms under federal discretionary programs administered by the Federal Highway Administration and potential public–private partnership models evaluated by consultants from firms like AECOM and HDR, Inc..
Traffic monitoring by Tennessee Department of Transportation and data shared with the Federal Highway Administration indicate peak weekday volumes concentrated at the I-40/I-275 junction and Henley Street ramps, with average daily traffic historically ranging from 40,000 to 70,000 vehicles depending on season and downtown events tied to the University of Tennessee Volunteers football team and conventions at the Knoxville Convention Center. Freight movements by Norfolk Southern Railway and CSX Transportation interact with surface street networks that feed the spur, influencing incident response times reported to the Knox County Emergency Communications District.
Maintenance responsibility rests with TDOT District 1, coordinating pavement rehabilitation, bridge inspections, and lighting with contractors accredited by the American Association of State Highway and Transportation Officials. Notable incidents include a multi-vehicle collision in the 1990s that prompted revisions to ramp geometry and a series of winter-weather closures addressed through updated de-icing protocols aligned with guidance from the National Weather Service. Emergency response exercises have been conducted with Knoxville Fire Department, Knoxville Police Department, and Tennessee Highway Patrol to refine protocols for incidents affecting downtown evacuation routes.
Category:Interstate Highways in Tennessee Category:Transportation in Knoxville, Tennessee