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| U.S. 21/176 (Old State Road) combine northbound 6.12 miles ahead of the Lexington County line. 04/15/12 |
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| U.S. 21/176 (Charleston Highway) curve northwest into a parclo B2 interchange (Exit 119) with Interstate 26. 04/15/12 |
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| K avenue ties into the westbound entrance ramp for I-26 to Columbia from the east. 04/15/12 |
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| Old Pine Plains Road stems north from the ramps joining I-26 and U.S. 21/176 to 12th Street Extension. 06/01/07 |
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| U.S. 21/176/321 (Charleston Highway) north at Lafayette Avenue in Cayce. 10/03/10 |
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| Charleston Highway (U.S. 21 Connector) extends 0.85 miles north from U.S. 21/176/321 at Knox Abott Drive to U.S. 1 (Meeting Street) by Triangle City in West Columbia. 10/03/10 |
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| U.S. 21/176/321 line Knox Abbott Drive 1.83 miles east to Blossom Street at the Columbia city line. 10/03/10 |
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| S.C. 35 (12th Street) intersects U.S. 21/176/321 south from Triangle City in West Columbia. 10/03/10 |
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| S.C. 35 constitutes a 5.63 mile long route from Interstate 77 in Cayce north to U.S. 378 (Sunset Drive) in West Boulevard. 10/03/10 |
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| S.C. 12 partitions into a couplet of Hampton Street east and Taylor Street west from the freeway along Jarvis Klapman Boulevard to West Columbia and Park Street by Downtown Columbia. 10/03/10 |
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| S.C. 12 lines Taylor Street west from U.S. 1 (Millwood Avenue) and the Waverly neighborhood to the Main Street District at Downtown Columbia and Williams Street one block from Huger Street. 10/03/10 |
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| S.C. 12 spans the Congaree River along Jarvis Klapman Boulevard west to U.S. 378 (Sunset Boulevard) and S.C. 35 (12th Street) by West Columbia City Hall. 12/31/12 |
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| Huger Street north at Laurel Street. 11/21/21 |
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| U.S. 21/176/321 (Huger Street) enter a three-wye interchange with Interstate 126 west and U.S. 76 (Elmwood Avenue) north of Richland Street. 11/21/21 |
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| I-126/U.S. 76 run 3.20 miles west from the Huger Street north entrance ramp to Interstate 26 at St. Andrews. U.S. 21/176/321 north combine with U.S. 76 east for 0.65 miles along Elmwood Avenue. 11/21/21 |
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| Confirming markers for U.S. 21/76/176/321 stand along Elmwood Avenue beyond the end of Interstate 126 between Gadsden and Lincoln Streets. 05/24/19 |
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| Elmwood Avenue proceeds two blocks east from Lincoln Street to intersect the west end of S.C. 48 (Assembly Street). 04/14/12 |
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| Assembly Street leads S.C. 48 south through Downtown Columbia to the State Capitol and the University of South Carolina (USC). 04/14/12 |
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| U.S. 21/176/321 part ways with U.S. 76 (Elmwood Avenue) one block east of S.C. 48 (Assembly Street) at Main Street. 04/14/12 |
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| S.C. 48 runs 28.98 miles overall from Columbia to U.S. 601 east of Gadsden. 04/14/12 |
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| U.S. 76 extends east along Elmwood Avenue three blocks to S.C. 277 at Bull Street. U.S. 21/176/321 continue another 0.51 miles north on Main Street into Elmwood Park. 04/14/12 |
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| U.S. 21/176/321 (Main Street) intersects Confederate Avenue between the Elmwood Park Historic District and the Belleview neighborhood. 09/20/21 |
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| U.S. 176 branches 1.01 miles northwest from U.S. 21/321 (Main Street) along River Drive to S.C. 16 (Sunset Drive) at Three Points. U.S. 176 continues west across the Broad River to St. Andrews. 09/20/21 |
06/01/07, 10/03/10, 04/14/12, 04/15/12, 12/31/12, 05/24/19, 09/20/21, 11/21/21 by AARoads
Page Updated 12-30-2021.
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