Interstate 790 forms an L-shaped route between Downtown Utica and the New York Thruway (I-90) at Exit 31. The east-west leg constitutes separate roadways running adjacent to I-90 from LeLand Avenue (NY 5) west to the NY 8/12 expressway along Horatio Street. A trumpet interchange connects this section of I-790 with the Thruway. It also doubles as NY 5, which dog legs south from Herkimer Road via LeLand Avenue.
The north-south branch of Interstate 790 accompanies NY 5-8-12 south from a directional cloverleaf interchange joining Horatio Street with NY 49. NY 49 extends the expressway west from I-790 to Rome while I-790 crosses the Erie Canal and Mohawk River into central Utica. Interstate 790 extends south to the Court Street off-ramp west of Downtown. NY 5-8-12 continue from that exchange along the North South Arterial Highway to New Hartford.
The $66.5 million North-South Arterial Project replaced the elevated section of New York 5, 8 and 12 through Utica. The largest project completed by the New York State Department of Transportation (NYSDOT) in the city of Utica extended the viaduct southward across Court Street, replacing a signalized intersection with a single point urban interchange (SPUI). The SPUI opened to traffic in June 2017.1
Completed on October 31, 2017, the project also improved the interchange joining I-790 & NY 5-8-12 with NY 5A and NY 5S along Oriskany Street. A new off-ramp was added from NY 5A east to Lafayette and Varick Streets and existing ramps were reconfigured.1 The first of two contracts, including the March 2, 2014 implosion of the Fay Street Warehouse, started in March 2013. Work on the viaduct replacement and construction of the SPUI at Court Street started in March 2014.2