Question: The route that Junction Motor Speedway was recently constructed on was established in what year by the US Department of Agriculture Bureau of Public Roads?

Context paragraphs:
U.S. Route 81: U.S. Route 81 is one of the many United States Numbered Highways established in 1926 by the US Department of Agriculture Bureau of Public Roads.

Bethel Motor Speedway: Bethel Motor Speedway is a quarter-mile asphalt oval race track, located near the site of the original Woodstock Music Festival in White Lake, New York.  The track was constructed in 1959, and opened for operations in 1960.  It has existed under several names, including White Lake Speedway, Catskill Mountain Speedway, Sullivan County Speedway, and Kauneonga Speedway.  The track closed in 2006 and remained idle through 2007.  Fred Graf Racing, LLC, purchased the speedway, and it reopened under new ownership bearing the Bethel Motor Speedway name on August 9, 2008.  Dave and Joanne Rocket, who promoted races at the speedway from 1998 until 2004, returned as promoters under the new owner.  The speedway was resurfaced in November 2010, providing a new racing surface for the 2011 season.  For the 2011 season, management of the speedway was assumed by Tracy Chirico, Business Operations Manager; and John Condit, Race Director.

Prefectural road: Prefectural roads (都道府県道 , todōfukendō , singular depending on the type of prefecture: "todō", "dōdō", "fudō" or "kendō") in Japan are roads usually planned, numbered and maintained by the government of the respective prefecture (-to, -dō, -fu or -ken), independent of other prefectures – as opposed to national roads (kokudō), which in legal terms include national expressways (kōsoku jidōsha kokudō), and municipal roads ([ku]shichōsondō).  Where a national or prefectural road runs through the territory of a designated major city, the city government assumes part of the responsibility for these roads.  By length, 10.7 % of public roads in Japan were prefectural roads as of 2011; by usage, they carried more than 30% of all traffic volume on public roads as of 2007.

Puerto Rico Bureau of Highway Patrol: Transito, Policía de Puerto Rico (English: Transit, Puerto Rico Police), is a specialized unit of the Puerto Rico Police, and is responsible for implementing and monitoring oriented measures for the benefit of drivers and other users of public roads, highways and primary roads in Puerto Rico.  It ensures that compliance with the law, traffic rules and regulations.  The Bureau has the units of Expressway, Highway Patrol, Alcohol Unit, Radar and Photometric, Metro Rail police and an office to coordinate federal proposals to meet its mission also prepare all the statistics of fatal crashes and coordinates all public or private activity taking place on public roads in Puerto Rico.

Federal Highway Administration: The Federal Highway Administration (FHWA) is a division of the United States Department of Transportation that specializes in highway transportation.  The agency's major activities are grouped into two "programs," the Federal-aid Highway Program and the Federal Lands Highway Program.  Its role had previously been performed by the Office of Road Inquiry, Office of Public Roads and the Bureau of Public Roads.

Texas Motor Speedway: Texas Motor Speedway is a speedway located in the northernmost portion of the U.S. city of Fort Worth, Texas – the portion located in Denton County, Texas.  The reconfigurated track measures 1.44 mi with banked 20° in turns 1 and 2 and banked 24° in turns 3 and 4.  Texas Motor Speedway is a quad-oval design, where the front straightaway juts outward slightly.  The track layout is similar to Atlanta Motor Speedway and Charlotte Motor Speedway (formerly Lowe's Motor Speedway).  The track is owned by Speedway Motorsports, Inc., the same company that owns Atlanta and Charlotte Motor Speedways, as well as the short-track Bristol Motor Speedway.

Indian route (United States): An Indian Route is a type of minor numbered road in the United States found on some Indian reservations.  These routes are part of the Bureau of Indian Affairs (BIA) Road System, which also includes federal aid roads, interior or locally funded roads, highway trust fund roads, tribal public roads, county or township roads, parts of the state highway system, and other federal agency public roads.

IROC XX: The twentieth season of IROC competition started on February 16, 1996.  IROC XX was the first year that the Pontiac Firebird Trans Am was used in competition, and contested races at Daytona International Speedway, Talladega Superspeedway, Charlotte Motor Speedway, and Michigan International Speedway.  Mark Martin won the first night race in the history of the series in race three at Charlotte Motor Speedway, and won again in the season finale at Michigan International Speedway propelling him to a come-from-behind IROC championship, his second in three seasons.

Tennessee State Route 394: State Route 394 (SR 394) is a west-east state highway in Sullivan County, Tennessee.  It serves as southern bypass of Bristol and as a connector route from Interstate 81 (I-81) to Bristol Motor Speedway.  The western terminus is at an intersection with U.S. Route 11W (US 11W) northwest of Blountville and the eastern terminus is at a junction with US 421 southeast of Bristol.  The route heads southeast and crosses I-81 before passing through Blountville.  From here, SR 394 continues southeast to an interchange with US 11E/US 19 near Bristol Motor Speedway, where it turns northeast and continues to US 421.

Junction Motor Speedway: Junction Motor Speedway is a recently constructed 3/8 mile dirt oval that is located just west of McCool Junction, Nebraska, United States, along U.S. Route 81.

Supporting paragraphs: Junction Motor Speedway U.S. Route 81
Answer: 1926