The interchange is part of the ongoing I-75 modernization project in Oakland County. MDOT will build a diverging diamond interchange (DDI) at I-75 and 12 Mile Road after the design was approved by the Federal Highway Administration late last year. Retrieved December 20, 2014.MDOT says it will move ahead with plans to build an innovative interchange at a busy intersection in Madison Heights. Jackson: Mississippi Department of Transportation. Official Highway Map of Mississippi (PDF) (Map). ^ Mississippi Department of Transportation (1998).Official Highway Map of Mississippi (PDF) (Map) (1996–1997 ed.). ^ Mississippi Department of Transportation (1996).Jackson: Mississippi State Highway Department. ^ Mississippi State Highway Department (1973).^ Mississippi State Highway Department (1971).Official Road Map State of Mississippi (PDF) (Map). ^ Mississippi State Highway Department (1967).Jackson: Mississippi State Highway Commission. ^ Mississippi State Highway Commission (1965).Road Map State of Mississippi (PDF) (Map). ^ Mississippi State Highway Commission (1962).^ a b Mississippi State Highway Commission (1960).^ a b Mississippi State Highway Commission (1958).^ a b Mississippi State Highway Commission (1957).^ Mississippi State Highway Commission (1956).^ Mississippi State Highway Commission (1955).^ Mississippi State Highway Commission (1953).^ National Highway System: Mississippi (PDF) (Map).Mississippi Department of Transportation. ^ Adams County, Mississippi (PDF) (Map).^ a b Microsoft Nokia (September 10, 2014).Mississippi Public Roads Selected Statistics Extent, Travel, and Designation (PDF) (Report). ^ a b Mississippi Department of Transportation Planning Division (December 31, 2011).The western part of the road was no longer state maintained by 1998. MS 554 was removed from state highway maps in 1967, and didn't reappear until 1973. The northern segment kept its designation as MS 554. Two years later, the southern segment was renumbered, and it became part of MS 555. By 1960, the southern segment of MS 554 was extended along a locally maintained gravel road to MS 563 in Wilkinson County. The designation was also added to the road from MS 555 to US 61 in 1958. MS 554 was designated in 1957, from US 61 and US 65, to an area north of the Adams– Wilkinson county line. History Ī road from Natchez to north of Selma first appeared on maps in 1955. MS 554 is not included as a part of the National Highway System (NHS), a network of highways identified as being most important for the economy, mobility and defense of the nation. All of the road is maintained by MDOT and Adams County. In 2013, Mississippi Department of Transportation (MDOT) calculated as many as 500 vehicles traveling west of Howard Loop, and as few as 290 vehicles traveling west of Old Meadow Road. The route continues traveling east until it reaches its eastern terminus at US 61. Local maintenance ends, and state maintenance begins. The road intersects the entrance to the airport at a T-intersection. It curves around multiple hills, until it reaches Old Johnson Road. The route travels eastward along Airport Road into the forest. MS 554 starts at MS 555 in the unincorporated village of Pine Ridge. All of the route is located in Adams County.

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