Interstate 985 (I-985) is a auxiliary Interstate Highway in Northeast Georgia. It links the Atlanta metropolitan area to the city of Gainesville via Suwanee. I-985 is also known as the Sidney Lanier Parkway, after the musician and poet, and is also designated as unsigned State Route 419 (SR 419). The roadway was designated as I-985 in 1985. I-985 and SR 365 are concurrent for I-985's entire length, but only the I-985 signs are displayed. I-985 is also concurrent with US Route 23 (US 23) from exit 4 northward. I-985 is the highest-numbered spur route of a north–south Interstate and is second only to I-990, which serves the Buffalo–Niagara Falls metropolitan area. Route description Gwinnett County In Gwinnett County, I-985 begins concurrent with SR 365 at an interchange with I-85 on the southeastern edge of Suwanee. The two highways head northeast to Buford, at an interchange with US 23/SR 20 (Buford Drive). Here, US 23 joins the concurrency of I-985/SR 365. Hall County The three routes head northeast into Hall County until they meet SR 347. In Flowery Branch, they meet Spout Springs Road at the Rankin Smith Interchange, named after the respective businessperson. Then, at exit 14 by Martin Road (HF Reed Industry). Then, they enter Oakwood and meet SR 53 (Mundy Mill Road), which does not have any return access from southbound I-985/US 23/SR 365. Just after, they enter Gainesville, where they intersect SR 13 (Atlanta Highway). Its interchange has access to both SR 13 and SR 53. Farther into Gainesville is SR 53 Connector (SR 53 Conn)/SR 60 (Candler Road/Queen City Parkway). In the main part of the city, US 129/US 129 Business (US 129 Bus)/SR 11 (Athens Highway) meet the concurrency. US 129/SR 11 head south toward Jefferson, while US 129 joins the concurrency through the rest of the city. Meanwhile, US 129 Bus/SR 11 head north into the heart of Gainesville. Nearly later US 129 departs to the north with SR 369 on Jesse Jewell Parkway. About later, I-985 ends, while US 23/SR 365 continue north. Then, US 23 enters North Carolina National Highway System All of I-985 is included as part of the National Highway System, a system of roadways important to the nation's economy, defense, and mobility. History 1920s The roadway that would eventually become I-985 was built at least as early as 1919 as SR 13 from Buford to just northeast of Gainesville,