State Route 397 (Mack Hatcher Memorial Parkway)Williamson County
State Route 397, Mack Hatcher Memorial Parkway, is the primary transportation concern for the City of Franklin. Due to huge demands of current and future traffic, local and state officials requested TDOT to study the feasibility of extending the parkway to the western portion of Williamson County. This action would create a complete loop around the city, avert traffic away from downtown Franklin, and provide motorists access to other major routes in the area.
The Western Extension
TDOT announced Friday, December 2, 2005, the preferred alignment selection for the Mack Hatcher Parkway Western Extension. The 7.5 mile route, identified in the Final Environmental Impact Statement (FEIS) as Alternate G, is the shortest of six alternatives previously identified. The limits begin at Columbia Highway (SR 6) south of Franklin and end at Hillsboro Road (SR 106) north of Franklin. TDOT Route Selection for SR 397 (Mack Hatcher Western Extension)
The utilization of a Citizen’s Design Team in 2006, stemming from TDOT‘s Context Sensitive Design approach to project development, provided a final design concept for the extension. With TDOT oversight, the City of Franklin and its consultants, CDM Smith and Associates, provided a proposed design for the northwest quadrant of the western extension that includes a new multi-lane facility with a raised median. Sidewalks, curb and gutter, and a multi-use path will be also be utilized on this section. Right-of-Way widths will vary along the corridor, not to exceed 250 feet. These designs are preliminary and subject to change.
Widening of Existing Mack Hatcher
The existing Mack Hatcher Parkway, from SR 96 east of Franklin to SR 6 north of Franklin, was widened from 2 lanes to 4 lanes with a raised median. A multi-use path with landscaping was part of the enhancement features for the roadway. Work was completed on May 15, 2014.