Construction crews working on a new overpass at U.S. 67 and Lake Ridge Parkway in Cedar Hill are building more than just concrete and steel. Once finished, the retaining walls along the interchange will carry a painted relief mural featuring bird artwork, a nod to Cedar Hill's identity as a certified Bird City Texas community.
The interchange is part of Loop 9 Segment A, a roadway project that the City of Cedar Hill, Texas - Government on Facebook says will connect Cedar Hill, Ovilla, Glenn Heights and Red Oak. The Texas Department of Transportation began construction on the US 67 and Lake Ridge Parkway improvements as part of that larger segment, which is planned to reduce travel times, strengthen regional accessibility, and support future economic development across the area, according to the same city post. The design includes a new grade-separated interchange with six lanes, along with reconstructed main lanes and frontage roads meant to improve connectivity, safety, and mobility while cutting congestion.
An Interchange Built for Decades of Growth
The physical scope of the project is considerable. TxDOT's design for the US 67 and Lake Ridge Parkway interchange spans approximately 1.9 miles, reconstructing the US 67 main lanes with a 26-foot grassy median, converting existing ramps into an X-ramp configuration, and adding Texas U-turns, according to Texas Department of Transportation planning documents. That interim grade separation is designed to preserve median space for future freeway expansion as traffic demands increase, the agency's materials note.
Those demands are expected to grow substantially. TxDOT traffic projections for the interchange area estimate average daily traffic will reach 125,842 vehicles on the main lanes and 41,286 on the frontage roads by 2058, per the department's own data. Loop 9 Segment A itself runs approximately 9.4 miles as a proposed roadway through Dallas and Ellis counties, and it's designed to fit within a planned 30-mile outer loop meant to accommodate a Dallas-Fort Worth regional population projected to reach 10 million by 2040, as WFAA has reported. Segment B of Loop 9, running from I-35E to I-45, opened to traffic in early 2025, while major interchange work continues elsewhere along the corridor.
Frontage Roads Carry a $342 Million Price Tag
TxDOT environmental and planning documentation estimates the total cost for Phase 1 frontage road construction of Loop 9 Segment A at approximately $342 million. Building the roadway also requires acquiring roughly 597 acres of new right-of-way, involving up to 56 residential, three commercial, and one municipal displacement across Dallas and Ellis counties, according to Texas Condemnation Projects. Federal and state regulations require TxDOT to provide relocation assistance and fair market value compensation for properties acquired along the route.
Getting to this point wasn't purely a matter of pouring concrete. Cedar Hill City Council briefing records from January 2024 showed that TxDOT's bridge over Lake Ridge Parkway experienced scheduling delays while the city completed utility relocations, including installing a new municipal water line, according to city records. Interchange construction of this scale frequently requires municipalities to move underground utilities before bridge work can proceed.
Why Bird Murals Line the Highway Walls
The bird artwork planned for the interchange walls isn't a random design choice. Cedar Hill was officially designated a certified Bird City Texas by Audubon Texas and the Texas Parks and Wildlife Department in February 2023, and the city earned its recertification in September 2025. The statewide program recognizes communities that implement science-based bird conservation and public education initiatives.
The city's geography helps explain the emphasis. Cedar Hill sits at the edge of the Balcones Escarpment, home to more than 4,000 acres of protected parks and open space, including Dogwood Canyon Audubon Center and Cedar Hill State Park, which together shelter more than 200 resident and migratory bird species, according to the Texas Parks and Wildlife Department. The area functions as an ecological convergence zone for East, West, and Central Texas plant and animal species.
Bird-friendly design already extends well beyond the highway walls. Cedar Hill built its public library with 70% bird-friendly glass and has planted nearly 14,000 native plants to protect native and migrating birds, according to Audubon Texas. Bird City Texas criteria encourage cities to work bird-safe architectural elements into public buildings, and the interchange murals appear to extend that same philosophy to state highway infrastructure.
Growth Along the Corridor Adds Pressure
The interchange sits within a stretch of US 67 that's seeing rapid industrial buildout. Commercial development along the corridor includes Hillwood's 184-acre High Point 67 Logistics Center, where packaging manufacturer Pratt Industries leased a 1.1 million-square-foot facility, as Hoodline previously reported. That kind of industrial growth has turned US 67 into a primary distribution artery for southern Dallas County, adding freight traffic to a corridor already facing residential expansion.
The overpass work in Cedar Hill also carries historical resonance for the city itself. Retaining wall signage at the site notes that the City of Cedar Hill was established in 1846, according to the same city post announcing the project. For now, the interchange remains under active construction as TxDOT and Cedar Hill work through a project meant to serve a corridor whose traffic volumes and industrial footprint are both expected to keep climbing for decades.
