Interstate 12 West - Madisonville to Livingston

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LA 1077 separates with LA 21 north from Madisonville en route to Interstate 12 at Exit 57 and U.S. 190 at Goodbee.
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A diamond interchange joins Interstate 12 with LA 1077 at Exit 57.
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Interstate 12 advances 9.5 miles west from LA 1077 to the succeeding exit.
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Interstate 12 west enters Tangipahoa Parish at milepost 53.
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Forthcoming Exit 47 is a folded diamond interchange with LA 445 near the Tangipahoa River.
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The unincorporated community of Robert lies north of Interstate 12 at the cross roads of LA 445 and U.S. 190.
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LA 3158 lines Airport Road from the south of I-12 Service Road to U.S. 190 near Hammond Northshore Regional Airport (HDC).
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S Airport Road extends another 0.76 miles from LA 3158 to Sisters Road at Hoover Road.
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Interstate 12 continues west through the Hammond city limits.
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U.S. 51 Business leads 5.85 miles north from LA 22 (Pine Street) in Ponchatoula to a dumbbell interchange (Exit 40) with Interstate 12.
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U.S. 51 Business follows Railroad Avenue, a five lane commercial boulevard, north from Exit 40 to a couplet with Oak Street by Zemurray Park.
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The campus of Southeastern Louisiana University lies north of Downtown Hammond along Oak Street.
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U.S. 51 Business combines with U.S. 190 (Thomas Street) west back to U.S. 51 (Morrison Boulevard). There is no direct access between I-12 and U.S. 51.
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Running along the west side of Hammond and Ponchatoula, Interstate 55 converges with I-12 at a cloverleaf interchange (Exit 38) in one mile.
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Heading north into Mississippi, Interstate 55 parallels U.S. 51 to McComb and Brookhaven.
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Interstate 55 travels 128 miles north to combine with I-20/U.S. 49 in Jackson, Mississippi.
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South from Exit 38 A, Interstate 55 concludes in 29.6 miles at I-10 east by Laplace.
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LA 1249 (Pumpkin Center Road) constitutes a 3.46 mile long highway north to parallel LA 1040 (Old Baton Rouge Highway) and south to Pumpkin Center and LA 22.
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LA 1249 (Pumpkin Center Road) north to LA 1040 and adjacent Bankston Street leads to Baptist along U.S. 190.
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Crossing the Natalbany River, westbound Interstate 12 enters Livingston Parish.
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LA 43 branches 4.34 miles north from LA 22 to Hungarian Settlement, I-12 at Exit 32 and U.S. 190 in the town of Albany.
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Overall LA 43 extends 44.35 miles north to Montpelier, Greensburg and Mississippi Highway 568 southwest of Gillsburg.
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Interstate 12 is West Florida Republic Parkway.
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The Interstate 12 bridges over the Blood River were reconstructed in 2014 to accommodate eventual six lane expansion.
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LA 441 meets Interstate 12 at a diamond interchange, midway along the 4.96 mile long course north from LA 42 to U.S. 190 at Holden.
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Paralleling LA 43, LA 441 travels 43.73 miles north to Montpelier and the Mississippi state line from St. Helena Parish.
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Reconstructed in 2014, the bridges taking I-12 over Big Branch can accommodate future widening.
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LA 63 runs 11.33 miles south from U.S. 190 (Florida Boulevard) and the Livingston town center to LA 42 at Frost and LA 444 at Verdun.
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LA 63 measures 27.86 miles in length, continuing northwest from Livingston to LA 16 at Weiss.
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S Satsuma Road (Parish Route 45) parallels Colyell Creek 8.94 miles north from LA 42 at Colyell to U.S. 190 at Satsuma.
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Expanding to six overall lanes, Interstate 12 spans Colyell Creek a half mile ahead of the diamond interchange (Exit 19) with Parish Route 45.
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