PROJECT:

Mallory Lane Extension

HFR was retained to provide engineering services for the new alignment noted as Mallory Lane Extension, from Mallory Lane at Jordan Road to Royal Oaks Parkway at Liberty Pike. Within the scope of the consulting engineering services were complete planning, design, and construction administration of the project. During the alignment study, it became clear that the least expensive alignment was not the best. The cheapest alignment followed the lowest point on the site. This is where the stormwater runoff gathered, thus making it difficult to control erosion and perform construction during the wet season.

Another disadvantage of the least expensive alignment is that it did not capture the beautiful views of the area; however, the main problem with the alignment was its proximity to the interstate.

The close proximity to the interstate would hinder development and not allow for a future interchange on I-65. Standard engineering practice in roadway design generally does not make for environmentally-friendly construction. Mallory Lane Extension demonstrates how roadways can be constructed in an environmentally friendly manner with proper planning. The use of detention and sediment ponds kept the creek crystal clear during construction, and the drainage ways in this area also remained clean throughout the construction phase. The bridge spanning the existing channel banks preserved the natural status of the creek as much as can be expected. With the tremendous growth of northeastern Franklin and the vastly increased number of trips per day to and from Cool Springs Mall, traffic congestion in the area was becoming an increasingly noticeable problem. Soon after being opened, the road was already heavily used, made traffic patterns much easier for the residents in northeastern Franklin, and eased access for Franklin residents to and from Cool Springs Mall. The road has also relieved a portion of the heavy traffic on Highway 96 Interchange at I-65.

Construction Cost: $3.1 million

Length: 1.1 miles