STRATEGIC PRIORITY: Transportation & Infrastructure
AGENDA DATE: February 22, 2023
COUNCIL DISTRICT(S): 2, 14
DEPARTMENT: Department of Transportation
EXECUTIVE: Dr. Robert Perez
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SUBJECT
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Authorize a resolution to support the “Refined Hybrid Option” as recommended by the Texas Department of Transportation for future redevelopment of Interstate Highway 345 and the accommodation of the interface with Dallas Area Rapid Transit’s D2 alignment - Financing: No cost consideration to the City
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BACKGROUND
The Texas Department of Transportation (TxDOT) worked closely with the City of Dallas, Dallas County, the North Central Texas Council of Governments (NCTCOG), and other stakeholders to conduct a feasibility study of Interstate Highway (IH) 345. The 1.4-mile roadway runs along the east side of downtown Dallas between IH-30 and Spur 366/Woodall Rogers Freeway. The existing IH-345 is primarily an elevated bridge structure that connects IH-45 and US Highway 75 carrying more than 180,000 vehicles every day.
The feasibility study incorporated evaluation of traffic counts and patterns; safety data; signal timing; and pedestrian, bicyclist, transit, and freight activity data. The study also considered potential impacts to the local street grid and existing transportation infrastructure; current and future development plans, including Dallas Area Rapid Transit’s (DART) D2 Subway Line; environmental impacts; and stakeholders’ input. TxDOT conducted three series of public meetings between December 2019 and May 2022 to gather feedback and share preliminary information about the project.
TxDOT has identified a recommended alternative, known as the “Refined Hybrid Option,” that reconfigures the design of IH-345 to put the interstate main lanes in a below grade/ trench configuration and provides existing and new city street connections above the interstate, including pedestrian and bicycle facilities. By doing so, the alternative configuration would reconnect communities-specifically Deep Ellum, Downtown, Arts District, and Uptown-while incorporating the guiding principles of the Council-adopted Strategic Mobility Plan. The proposed option would potentially allow for large portions of the corridor to be capped in the future for parks and other uses.
On June 9, 2022, the NCTCOG’s Regional Transportation Council (RTC) adopted the current Metropolitan Transportation Plan (MTP) known as “Mobility 2045 Update,” which recommends projects, programs, and policies that aim to meet the Mobility Plan goal themes of Mobility, Quality of Life, System Sustainability, and Implementation. The MTP included the IH-345 connection between IH-30 and Spur 366/Woodall Rogers Freeway in its update.
This action will authorize a resolution supporting TxDOT’s recommended alternative for future redevelopment of IH-345 and encouraging TxDOT to move forward with the next phase of the project to conduct schematic and environmental analysis of the hybrid alternative.
PRIOR ACTION/REVIEW (COUNCIL, BOARDS, COMMISSIONS)
On February 9, 2022, City Council authorized a resolution to support the revised DART addition for a second light rail alignment through Downtown Dallas (D2) by Resolution No. 22-0317.
The Transportation and Infrastructure Committee was briefed regarding the IH-345 Feasibility Study on June 21, 2022.
City Council was briefed regarding the IH-345 Project on October 19, 2022.
FISCAL INFORMATION
No cost consideration to the City.