U.S. 20A runs east from U.S. 20 at Hamburg to the town of Bloomfield in the Finger Lakes region. Traveling 83.2 miles overall, U.S. 20A joins Orchard Park with East Aurora within the Buffalo metropolitan area. East into Wyoming County, U.S. 20A constitutes a rural highway to the town of Warsaw. Through Livingston County, U.S. 20 connects the village of Leicester, town of Geneseo and village of Livonia.
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| U.S. 20A/NY 39 east combine with NY 63 for 0.31 miles just outside the town of Geneseo. 07/02/05 |
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| NY 63 branches northwest from U.S. 20A/NY 39 around the west side of Geneseo and the campus of SUNY Geneseo. 07/02/05 |
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| NY 63 angles 23 miles northwest to the Genesee County seat of Batavia. 07/02/05 |
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| U.S. 20A/NY 39 continue another 0.70 miles from NY 63 to their split at Main and South Streets in Geneseo. 07/02/05 |
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| U.S. 20A/NY 39 (Mt. Morris Road) cross the Geneseo town line. Seat of Livingston County, the community is home to over 10,000. 07/02/05 |
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| U.S. 20A/NY 39 turn onto South Street at Mary Jemison Drive (Route 942D). Route 942D constitutes a 0.43 mile link west to SUNY Geneseo and NY 63. 07/02/05 |
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| NY 39 turns north along Main Street through Downtown Geneseo from U.S. 20A (South Street) east. The state route continues north to Avon while U.S. 20A heads 4.8 miles northeast to meet Interstate 390. 07/02/05 |
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| Reassurance markers for U.S. 20A/NY 39 formerly posted along Main Street westbound ahead of South Street in Leicester. These were removed by 2015. 05/27/00 |
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| U.S. 20A descends along a steep grade into the town of Warsaw. A turnaround precedes the S-curve leading U.S. 20A south to Buffalo Street. This sign stands along the westbound turnaround for trucks, buses and cars with trailers at Miner Road. 05/27/00 |
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| U.S. 20A splits with NY 16/78 north at a roundabout joining Main Street with Buffalo Road north and Hamburg Street south in the village of East Aurora. 05/27/00 |
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| A parclo interchange joins U.S. 20A (Big Tree Road) with the U.S. 219 freeway outside the village of Orchard Park. 05/27/00 |
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| Removed by 2017, this shield assembly for U.S. 20A and the Peach Bridge was posted west of Abbott Road (CR 4) in the town of Orchard Park. Abbott Road links U.S. 20A and U.S. 20 with New Era Field, home of the NFL Buffalo Bills. 05/27/00 |
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| U.S. 20A (Big Tree Road) previously ended at a six-way intersection with U.S. 20 (Southwestern Boulevard) and McKinley Parkway. Big Tree Road was eventually realigned away from U.S. 20 at McKinley Parkway to separate signalized intersections. 05/27/00 |
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| Erroneous NY 20A shield on NY 246 south at U.S. 20A in the town of Perry. 05/27/00 |
Page Updated 03-05-2020.
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