|
|direction_b=East |terminus_b= at Canadian border on Blue Water Bridge in Port Huron, MI }} Interstate 69 (I-69) is an Interstate Highway in the United States consisting of seven disjointed parts with an original continuous segment from Indianapolis, Indiana, northeast to the Canadian border in Port Huron, Michigan, at . The remaining separated parts are variously completed and posted or unposted parts of a long-distance extension southwest to the Mexican border in Texas. Of this extension—nicknamed the NAFTA Superhighway because it would help trade with Canada and Mexico spurred by the North American Free Trade Agreement—five pieces near Corpus Christi, Houston, northwestern Mississippi, Memphis, and Evansville have been newly built or upgraded and signposted as I-69. A sixth segment of I-69 through Kentucky utilizing that state's existing parkway system and a section of I-24, was established by federal legislation in 2008 but only a portion is signposted. A section of the previously existing Western Kentucky Parkway from Eddyville to Nortonville was approved and signposted in late 2011, with the Pennyrile Parkway between Nortonville and Henderson being signed as I-69 in 2015. This brings the total length to about . The proposed extension evolved from the combination of Corridors 18 and 20 of the National Highway System as designated in the Intermodal Surface Transportation Efficiency Act of 1991, but the federally recognized corridor also includes connecting and existing infrastructure, including I-94 between Chicago and Port Huron and several spurs from I-69. Among these proposed spurs are an extension of I-530 from Pine Bluff, Arkansas, an upgrade of U.S. Route 59 (US 59) from Texarkana, Texas, and a split in southern Texas to serve three border crossings at Laredo, Pharr, and Brownsville. In August 2007, I-69 was selected by the United States Department of Transportation as one of six Corridors of the Future, making it eligible for additional federal funding and streamlined planning and review. This funding has since been withheld causing some states to suspend construction indefinitely.〔(【引用サイトリンク】accessdate=August 10, 2012 )〕 ==Route description== I-69 currently exists as a number of distinct SIUs (Sections of Independent Utility): * The original (with later additions), fully completed route from Indianapolis, Indiana, to the Blue Water Bridge at Port Huron, Michigan (SIU 1); * Portions of the Indianapolis beltway (I-465), though not currently signed as such (SIU 2); * A section from I-64 north of Evansville, Indiana to US 231 near the Crane Naval Surface Warfare Center, sections 1-3 of (SIU 3); * An section of former Interstate 164 near Evansville, Indiana, south from I-64 to a temporary end at US 41; recently signed as I-69 (SIU 4); * The upgraded portions of the Kentucky Parkway system: Purchase, Western Kentucky and Pennyrile parkways (SIU 5) and (SIU 6); * A section from Tunica Resorts, Mississippi, to the I-40/I-69/State Route 300 (SR 300) interchange in Memphis, Tennessee part of (SIU 9) and (SIU 10); * The existing US 59 freeway from Rosenberg, Texas, to Cleveland, Texas (SIU 19); * A segment of US 77 from south of State Highway 44 (SH 44) to I-37 near Corpus Christi, Texas (SIU 22), designated as I-69 in August 2011 and re-designated as I-69E on May 30, 2013 * An section of US 281 from I-2 in Pharr, Texas to Edinburg, Texas, designated as I-69C on May 30, 2013.〔 * A section of US-77 (and part of US 83) from the Veterans International Bridge at Brownsville, Texas to Raymondville, Texas, designated as I-69E on May 30, 2013 (SIU 23).〔 *A section of both US 59 and Loop 20 in Laredo, Texas between the World Trade International Bridge and I-35, designated as I-69W on June 17, 2014. |- |TX || |- |LA || || |- |AR || || |- |MS || |- |TN || |- |KY || |- |IN || |- |MI || |- |Total || |} The original portion of Interstate 69 in Indiana (SIU 1 of the overall national plan) starts at an interchange with Interstate 465, the beltway around Indianapolis on the northeast side of that city. I-69 heads northeast to near Anderson, where it turns more easterly to provide indirect access to Muncie before turning more northerly towards Marion, and Fort Wayne. In Fort Wayne, I-69 runs along the western edge of the city while I-69's only current signed auxiliary route, I-469, loops east of the city. After crossing the Indiana East-West Toll Road (I-80/I-90) near Angola and Fremont, I-69 enters Michigan just south of Kinderhook. I-69 in Michigan runs north passing through Coldwater and Marshall. There it crosses I-94 east of Battle Creek. Near Olivet, I-69 begins to turn in a northeasterly direction passing through the Lansing metropolitan area. Here I-69 is cosigned with I-96 as an overlap west of Lansing, the only such palindromic pairing in the Interstate Highway System. Where it splits from I-96, I-69 turns east, both in compass direction and in signed direction, and heads north of Lansing and through Flint (where it crosses I-75) to a junction with I-94 just outside Port Huron. At its eastern terminus, I-69 joins I-94 to the Blue Water Bridge across the St. Clair River, where traffic continues on Highway 402 in the Canadian province of Ontario to London, Ontario. The new section of Interstate 69 in southern Indiana presently begins at the I-64/I-164/SR 57 interchange north of Evansville, at the boundary between the SIU 3 and SIU 4; from there, it runs north to SR 68. Construction was completed on November 19, 2012 on a segment (SIU 3, Section 1-3). This extension takes the route north-northeast from there to SR 64 near Oakland City, then north-northeast to US 50/US 150 at Washington and finally northeast to US 231 near the Crane Naval Surface Warfare Center. Construction is currently underway for the final new terrain segment (SIU 3, Section 4), which will take I-69 from Crane NSWC northeast to SR 37 on the southwest side of Bloomington and is scheduled to be completed by the end of 2015. From there the existing SR 37 expressway corridor, including Sections 5 (Bloomington to Martinsville) and 6 (Martinsville to Indianapolis) of I-69's SIU 3, will eventually be upgraded to full Interstate Highway standards all the way north-northeast to I-465 on the southwest side of Indianapolis. The new I-69 in Mississippi and Tennessee starts at an at-grade intersection with the former route of Mississippi Highway 304 (MS 304) in Banks, Tunica County, Mississippi. It continues roughly north-northeast, crossing into DeSoto County, to a partial interchange with the current route of MS 304, then runs easterly to an interchange with I-55 in northern Hernando. It then continues north, overlapping I-55 to the Tennessee state line, and continues northward concurrently with I-55 to the south side of Memphis. It then follows I-240 northward through downtown before joining I-40. Presently, the northern end of this section of I-69 is at the I-40/I-69/SR 300 interchange on the north side of Memphis. This portion of the route was the first "section of independent utility" (SIU) of the proposed extension to be signed as part of the national I-69 route, and the first portion designed as part of the extension. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Interstate 69」の詳細全文を読む スポンサード リンク
|