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Interstate 390
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Interstate 390
Interstate 390 (I-390) is a 76.06-mile (122.41 km) north–south auxiliary Interstate Highway located in the U.S. state of New York. The southern terminus of the route is at the Southern Tier Expressway (I-86 and New York State Route 17, or NY 17) in the town of Avoca. Its northern terminus is at I-490 (Western Expressway) in Gates, just west of Rochester. North of I-490, the expressway continues as NY 390 to the Lake Ontario State Parkway in Greece. I-390 connects to its parent, I-90 (New York State Thruway), in Henrietta, a southern suburb of Rochester. The route is known as the Genesee Expressway from Avoca to I-590 in Brighton, where it becomes part of the Rochester Outer Loop.
In addition to serving Rochester, I-390 serves as an important connecting route between the Rochester metropolitan area and Corning and the rest of the Southern Tier of New York. The freeway also serves several smaller communities between Corning and Rochester, including the Livingston County villages of Dansville and Geneseo. I-390 effectively replaced US Route 15 (US 15) and parallels NY 15, US 15's de facto successor, north of Corning. From Lakeville north to Brighton, the two routes cross paths four times and are located no more than 1.5 miles (2.4 km) apart along the entire stretch.
The first section of the Genesee Expressway opened in the late 1960s, extending from Wayland in the east to Dansville in the west. The entirety of the then-proposed highway was designated as New York State Route 401 (NY 401) in 1970 but redesignated as I-390 c. 1973. More sections of the freeway opened throughout the 1970s, and I-390 was extended northwestward to cover the southwestern quadrant of the Rochester Outer Loop in 1980 following the elimination of NY 47. I-390 was completed in the early 1980s.
In its southern sections, which account for most of the highway's mileage, I-390 is a lightly trafficked freeway of two lanes in either direction going through minimally populated rural areas. Closer to Rochester, it becomes wider to accommodate the increased traffic it handles in the city itself.
I-390 begins as westbound traffic on the concurrent routes of I-86 and NY 17 proceeds below the overpass carrying those two routes to the west, at an interchange just east of the village of Avoca in Steuben County. The expressway heads northwest through the narrow valley of the Cohocton River to Cohocton, where the river leaves the expressway and heads north toward the hamlet of Atlanta. I-390 climbs gradually as it continues past Cohocton, eventually turning due west as it descends to an interchange with NY 21 south of Wayland. This exit is also the southern terminus of NY 15, which eventually parallels the Interstate further north.
The road climbs again as it makes a gentle bend and widens as it crosses the Livingston County line just south of Dansville and north of Stony Brook State Park. Descending again, it returns to its northwestern heading. North of the village, it climbs to the west side of the wide valley of Canaseraga Creek, giving the roadway a view over the area known locally as the Flats. NY 36 begins to parallel the highway closely, with NY 63 on the far side of the Flats. Just south of the hamlet of Sonyea, NY 36 crosses at a diamond interchange. I-390 turns northeast briefly but resumes its northwest course soon afterward. At this point, the highway follows more level ground, with woods and swamps mostly replacing farmland in the surrounding landscape.
After passing rest areas on either side, I-390 reaches the NY 408 exit adjacent to the American Rock Salt mine at Hampton Corners. Here, most traffic bound for the Buffalo area exits to go west to Mount Morris, visible across the Flats from the freeway, where it follows NY 36 north. To the immediate east of the exit, NY 408 ends at NY 63, which carries traffic from the Interstate into Geneseo, the county seat. A mile (1.6 km) north of the exit, Canaseraga Creek drains into the Genesee River on the road's west side.
The expressway continues north through Livingston County to Geneseo, which I-390 skirts to the south and east. While there is no exit for Geneseo on the part of the freeway that encroaches the village, exit 8, an interchange with US 20 Alternate (US 20A) east of Geneseo, provides the connection. Also accessible from the junction is the hamlet of Lakeville, situated off to the east at the junction of US 20A and NY 15. I-390 continues on, encountering NY 15 north of Lakeville and southeast of Avon. From here north to Rochester, I-390 and NY 15 follow closely parallel alignments. Both highways meet US 20 and NY 5 east of Avon prior to crossing into Monroe County.
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Interstate 390
Interstate 390 (I-390) is a 76.06-mile (122.41 km) north–south auxiliary Interstate Highway located in the U.S. state of New York. The southern terminus of the route is at the Southern Tier Expressway (I-86 and New York State Route 17, or NY 17) in the town of Avoca. Its northern terminus is at I-490 (Western Expressway) in Gates, just west of Rochester. North of I-490, the expressway continues as NY 390 to the Lake Ontario State Parkway in Greece. I-390 connects to its parent, I-90 (New York State Thruway), in Henrietta, a southern suburb of Rochester. The route is known as the Genesee Expressway from Avoca to I-590 in Brighton, where it becomes part of the Rochester Outer Loop.
In addition to serving Rochester, I-390 serves as an important connecting route between the Rochester metropolitan area and Corning and the rest of the Southern Tier of New York. The freeway also serves several smaller communities between Corning and Rochester, including the Livingston County villages of Dansville and Geneseo. I-390 effectively replaced US Route 15 (US 15) and parallels NY 15, US 15's de facto successor, north of Corning. From Lakeville north to Brighton, the two routes cross paths four times and are located no more than 1.5 miles (2.4 km) apart along the entire stretch.
The first section of the Genesee Expressway opened in the late 1960s, extending from Wayland in the east to Dansville in the west. The entirety of the then-proposed highway was designated as New York State Route 401 (NY 401) in 1970 but redesignated as I-390 c. 1973. More sections of the freeway opened throughout the 1970s, and I-390 was extended northwestward to cover the southwestern quadrant of the Rochester Outer Loop in 1980 following the elimination of NY 47. I-390 was completed in the early 1980s.
In its southern sections, which account for most of the highway's mileage, I-390 is a lightly trafficked freeway of two lanes in either direction going through minimally populated rural areas. Closer to Rochester, it becomes wider to accommodate the increased traffic it handles in the city itself.
I-390 begins as westbound traffic on the concurrent routes of I-86 and NY 17 proceeds below the overpass carrying those two routes to the west, at an interchange just east of the village of Avoca in Steuben County. The expressway heads northwest through the narrow valley of the Cohocton River to Cohocton, where the river leaves the expressway and heads north toward the hamlet of Atlanta. I-390 climbs gradually as it continues past Cohocton, eventually turning due west as it descends to an interchange with NY 21 south of Wayland. This exit is also the southern terminus of NY 15, which eventually parallels the Interstate further north.
The road climbs again as it makes a gentle bend and widens as it crosses the Livingston County line just south of Dansville and north of Stony Brook State Park. Descending again, it returns to its northwestern heading. North of the village, it climbs to the west side of the wide valley of Canaseraga Creek, giving the roadway a view over the area known locally as the Flats. NY 36 begins to parallel the highway closely, with NY 63 on the far side of the Flats. Just south of the hamlet of Sonyea, NY 36 crosses at a diamond interchange. I-390 turns northeast briefly but resumes its northwest course soon afterward. At this point, the highway follows more level ground, with woods and swamps mostly replacing farmland in the surrounding landscape.
After passing rest areas on either side, I-390 reaches the NY 408 exit adjacent to the American Rock Salt mine at Hampton Corners. Here, most traffic bound for the Buffalo area exits to go west to Mount Morris, visible across the Flats from the freeway, where it follows NY 36 north. To the immediate east of the exit, NY 408 ends at NY 63, which carries traffic from the Interstate into Geneseo, the county seat. A mile (1.6 km) north of the exit, Canaseraga Creek drains into the Genesee River on the road's west side.
The expressway continues north through Livingston County to Geneseo, which I-390 skirts to the south and east. While there is no exit for Geneseo on the part of the freeway that encroaches the village, exit 8, an interchange with US 20 Alternate (US 20A) east of Geneseo, provides the connection. Also accessible from the junction is the hamlet of Lakeville, situated off to the east at the junction of US 20A and NY 15. I-390 continues on, encountering NY 15 north of Lakeville and southeast of Avon. From here north to Rochester, I-390 and NY 15 follow closely parallel alignments. Both highways meet US 20 and NY 5 east of Avon prior to crossing into Monroe County.
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