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Louisiana Highway 12 (LA 12) is a state highway located in southwestern Louisiana. It runs in an east–west direction from the Texas state line west of Starks to a junction with U.S. Highway 171 (US 171) and U.S. Highway 190 (US 190) in Ragley. The route connects the city of DeQuincy with US 171 and US 190, two of the region's main highways. It is also the only highway crossing the Texas–Louisiana border between US 190 to the north and the concurrent Interstate 10 (I-10) and US 90 to the south. LA 12 enters both Calcasieu Parish and Beauregard Parish twice along its route. This is due to a northern protrusion of the former from an otherwise linear border that encompasses the DeQuincy area. LA 12 traverses an area of the state known as Acadiana and is also signed as the Acadiana Trail. ==Route description== From the west, LA 12 begins at the Texas state line, midway across a swing bridge over the Sabine River. It continues the route of Texas State Highway 12 (SH 12) from the Newton County community of Deweyville into Calcasieu Parish, Louisiana. LA 12 heads east as an undivided two-lane highway through a largely uninhabited and heavily wooded area in the northwestern portion of the parish. After about , scattered residences appear as the highway approaches the small community of Starks. Passing through the center of town, LA 12 intersects LA 109, which connects with Vinton to the south and Merryville to the north. East of Starks, LA 12 curves northeast and runs parallel to the Kansas City Southern Railway (KCS) tracks for the next . During this time, the highway briefly passes through a corner of Beauregard Parish before crossing back into Calcasieu Parish. Shortly afterward, LA 12 passes the DeQuincy Industrial Airpark, simultaneously entering the small city of DeQuincy. It then curves slightly more to the northeast and away from the railroad line. After passing the local middle and high schools, the route curves due east into town on West 4th Street. LA 12 intersects LA 389 (Cole Street) at the latter's southern terminus then makes a jog across the railroad tracks onto East 4th Street, entering the city's historic district. Signs direct visitors to the DeQuincy Railroad Museum, located one block to the north at the convergence of two branches of the KCS Railway. Shortly after a second grade crossing, LA 12 intersects LA 27, which heads northward along Page Street toward DeRidder. Widening to accommodate a center turning lane, the two highways run east concurrently for two blocks until LA 27 turns south onto South Grand Avenue, heading toward Sulphur.〔〔〔 Crossing out of the city limits, LA 12 narrows again to two lanes. It then curves to the northeast to follow the Union Pacific Railroad (UP) tracks for to an area known as Ragley. Along the way, LA 12 crosses into Beauregard Parish once again. The eastern terminus is located at an interchange with US 171 and US 190, specifically at the foot of ramps leading to and from southbound US 171, heading toward Lake Charles. LA 12 briefly widens to a divided four-lane highway to pass through the interchange. Eastbound US 190 continues straight ahead toward Kinder, first connecting to ramps leading to northbound US 171 and westbound US 190, which travel concurrently to DeRidder.〔〔 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「Louisiana Highway 12」の詳細全文を読む スポンサード リンク
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