Town of Flower Mound, Texas

FM 1171

Texas Department of Transportation (TxDOT) began construction on the first phase of 1171. Fully funded, the project will improve the existing FM 1171 roadway to a six-lane divided thoroughfare from FM 2499 to I-35W. The project consists of three phases. Section 1, from FM 2499 to Shiloh Road; Section 2, from Shiloh Road to US 377; and Section 3, from US 377 to I-35W. All of the right-of-way for Section 1 has been acquired and the acquisition for Section 2 and Section 3 right-of-way is ongoing.

Project Plan and Timeline

Texas Department of Transportation (TxDOT) will oversee this state project. When completed, the roadway will look similar to FM 3040 with a curb and gutter, wide medians, and underground drainage. FM 1171 is to be constructed as a six lane, divided, urban arterial. Construction began on Section 1 on February 18, 2008 and is scheduled to be completed by July 2010. TxDOT plans to construct Sections 2 and 3 as one project. The design for Sections 2 and 3 is partially completed. The final timeline for the construction of Sections 2 and 3 has not been determined.

Project Objectives

There are several design objectives for the reconstruction project including additional traffic capacity and safety improvements. Increased capacity will be provided through the addition of four new lanes while safety improvements will be addressed in several ways.

The new roadway will be constructed to current TxDOT standards including a more gentle vertical and horizontal curvature. The sharpest curves along the western-most portion of FM 1171 will be rectified, providing improved sight distance for drivers.

Safety will also be improved through the construction of a raised center median, properly spaced driveways, median openings, and left-turn bays to provide enhanced access management and accommodate vehicles waiting to turn across traffic. In addition, right-turn auxiliary lanes will be constructed to provide an additional level of safety for vehicles slowing to turn right at intersections.