Accura provided CEI services and materials testing support for the multi-year road construction project in northwest Georgia. The Northwest Corridor project was designed to improve travel in the I-75/I-575 corridor by adding 29.7 mi of toll lanes along I-75 from Akers Mill Rd to Hickory Grove Road and along I-575 from I-75 to Sixes Road along with express lanes. The project involved construction of new bridges, roadways, MSE walls, and sound barriers.
The Northwest Corridor Project involved the addition of reversible managed lanes for 16.8 mi along I-75 and 11.3 mi along I-575 in Cobb and Cherokee Counties. The project location is from I-75 at Akers Mill Road at the end of the existing HOV system north of the Atlanta city limits. The project consists of a bi-directional system with one managed lane in each direction from Akers Mill Road to I-285. North of I-285 to the junction of I-75 and I-575, the project consists of 2 reversible managed lanes on the outside (west side) of the existing general purpose lanes along I-75 and is constructed using a mix of roadway at-grade, on walls, and as an elevated highway. In addition, one reversible managed lane was added along I-75 and was constructed using a mix of roadway at-grade, walls, and as an elevated highway. In addition, one reversible managed lane was added along I-75 from I-75/I-575 junction northerly to Hickory Grove Road and along I-575 to Sixes Road. These lanes are at-grade and located in the existing median along the inside of the existing general purpose lanes. The project also consists of several interchanges on I-75.