327 passes Fawn River State Fish Hatchery, while passing through agriculture. South of the Michigan state line SR 327 passes under the Indiana Toll Road, before the SR 327 designation ends at the state line. While the SR 327 designation end at the state line the roadway continues north into Michigan as Rierson Road. No part of SR 327 in Indiana is included in the National Highway System (NHS). The NHS is a network of highways that are identified as being important for the economy, mobility and defense of the nation. The highway is maintained by the Indiana Department of Transportation (INDOT) like all other State Roads in the state. The department tracks the traffic volumes along all state roads as a part of its maintenance responsibilities using a metric called average annual daily traffic (AADT). This measurement is a calculation of the traffic level along a segment of roadway for any average day of the year. Between 2014 and 2015, INDOT figured that lowest traffic levels were 748 vehicles used the highway daily between Indiana Toll Road and Michigan state line. The peak traffic volumes were 7,956 vehicles AADT along the section of SR 327 at its concurrency with US 6. History SR 327 had its beginning in 1931 when it was designated from Garrett to Corunna. The route between Corunna and the Michigan state line was authorized in 1934. DeKalb County purchased the right-of-way for the road between Corunna and Helmer in 1935. The state highway commission constructed the section of road, between US 6 and Michigan state line, in 1936. During 1969 SR 327 was extended south to Interstate 69 in Fort Wayne, along former US 27. The entire roadway was paved between 1970 and 1971. The state highway commission truncated SR 327 south of Garrett at an intersection with SR 205 between 1974 and 1975. Major intersections References External links 327 Transportation in DeKalb County, Indiana Transportation in Steuben County, Indiana U.S. Route 27