Corridor I-1
Location: US 183 to Ronald Reagan Boulevard
Description: The initial phase of the Planning and ROW Preservation Study has concluded for a forthcoming 1.6-mile roadway spanning from U.S. 183 to Ronald Reagan Boulevard, featuring planned interchanges at each end. The subsequent phase involves crafting preliminary engineering blueprints for forthcoming enhancements. Construction will unfold incrementally in response to developmental demands and upon securing necessary funding.
Status: The engineering firm, Atkins, finalized the study and schematic design of the corridor on May 17, 2024.
Corridor I-2
Location: US 183 to SH 29 and the Burnet County Line to US 183
Description: The Corridor I-2 Planning and Right-of-Way (ROW) Preservation Study assesses travel connections between U.S. 183 and SH 29. The County claims its aim is to bolster safety and mobility in northwest Williamson County while also accommodating anticipated regional growth. Commissioners’ reasoning for the project is that the county has been recognized as the third fastest-growing in Texas over the past decade, with the City of Liberty Hill ranking as the third fastest-growing city in the state.
Status: K Friese + Associates, the engineering firm, is currently engaged in the study and schematic design of the corridor, with completion expected by summer 2024.
Corridor A2
Location: East Williamson County, South of Taylor, between FM 3349 to SH 95
Description: Williamson County is undertaking the Corridor A2 Planning & Right-of-Way (ROW) Preservation Study to prepare for future development and establish the necessary ROW boundaries. The road construction will be phased in response to growth, aiming to enhance safety, mobility, and connectivity in eastern Williamson County, from FM 3349 to SH 95.
Status: The engineering firm LJA identified environmental constraints, collected public feedback, and pinpointed potential alignments. The study team assessed multiple route alternatives and, after engaging with impacted property owners and the Lower Brushy Creek WCID, proposed a final revised route to the Williamson County Commissioners Court, which was approved in May 2024. Construction is expected to start in 2025.
Corridor D (Ronald Reagan Extension)
Location: Ronald Reagan Extension from IH 35 to SH 95 in Precinct 3 and 4.
Description: Williamson County is carrying out a study to formulate a plan for enhancements along Ronald Reagan Boulevard between IH 35 and SH 95, known as Corridor D. The objective of the study is to establish an east/west connector between IH 35 and SH 95. The County claims that this research is a crucial phase in planning to handle both present and expected future traffic volumes, ensuring dependable transportation as the county expands. Through proactive planning, the County alleges that its aim is to effectively coordinate with property owners, businesses, and the community.
Status: Halff Associates, Inc. designed an alignment for the Ronald Reagan Extension. The schematic has been completed. Currently, there is no funding available for construction. The road will be constructed as growth demands and funds become available. It may take several decades before the entire Ronald Reagan Extension is completed.
Corridor C / SH 29 Bypass Ultimate
Location: Connector from Sam Houston Avenue at Patriot Way to SH 29
Description: The initial phase of the project involves building a two-lane road from Sam Houston Avenue at Patriot Way to SH 29, including a bridge over SH 130.
The County’s plan for this two-lane road aims to meet current travel requirements; however, based on growth projections and traffic models, more capacity will likely be needed in the future. Subsequent phases to complete the road’s ultimate construction will proceed as travel demand increases and funding becomes available, potentially spanning several decades.
Status: Williamson County initiated the Corridor C Study in June 2017 to design a controlled access road from Sam Houston Avenue at Patriot Way to SH 29, aiming to enhance safety and improve mobility. The schematic design was completed in July 2019, following two public open houses in 2017 to solicit community feedback. The design was created by Atkins, and the construction is being handled by Capital Excavation.
A groundbreaking ceremony took place on September 29, 2023, with construction expected to finish by the summer of 2026. Archaeological studies are underway, including laboratory analysis, drafting and final reporting, and curation preparation, expected to conclude by August 2025.
Capital Excavation, the contractor for Williamson County, will enforce a complete roadway closure on CR 106 to rebuild the roadway connection to the proposed Corridor C. Detour signage and message boards will be set up. This closure is scheduled to last for about one month, starting Wednesday, June 5, 2024.
Liberty Hill Bypass
Location: RM 1869 to CR 279/Bagdad Road
Description: The undertaking involves initially building a fresh two-lane roadway extending from RM 1869 to CR 279 / Bagdad Road. Furthermore, the initiative will introduce turn lanes on RM 1869 and CR 279 leading to the Liberty Hill Bypass.
Status: Construction commenced in early 2024 and is slated for completion by late 2025. A groundbreaking ceremony was conducted on Friday, Jan. 26, 2024, with Chasco Constructors serving as the contractor.
Corridor E2 / East Wilco Hwy (US 79 – Chandler)
Location: Between U.S. 79 and Chandler Road
Description: The county is carrying out the Corridor E Planning and ROW Preservation Study as a component of a proposed ultimate controlled-access roadway in the county’s central area, serving as an alternate north/south transport route to IH35. This study encompasses four segments included in the county’s Long-Range Transportation Plan. Funding for all four segment studies comes from the voter-approved 2019 Road Bond; however, no right-of-way or construction funding is currently allocated for these segments. The County claims this study is a crucial step in planning to manage both current and expected traffic volumes, ensuring reliable transportation as the county grows. Through proactive planning, the county alleges its aim is to effectively coordinate with property owners, businesses, and the community.
Status: The engineering firm, BGE, Inc., handled the study and schematic design of the Corridor, which was completed in the fall of 2022.
Corridor E3 / East Wilco Hwy (Chandler – SH 29)
Location: Between Chandler Road and future SH 29
Description: The county is carrying out the Corridor E Planning and ROW Preservation Study as a component of a proposed ultimate controlled-access roadway in the county’s central area, serving as an alternate north/south transport route to IH35. This study encompasses four segments included in the county’s Long-Range Transportation Plan. Funding for all four segment studies comes from the voter-approved 2019 Road Bond; however, no right-of-way or construction funding is currently allocated for these segments. The County claims this study is a crucial step in planning to manage both current and expected traffic volumes, ensuring reliable transportation as the county grows. Through proactive planning, the county alleges its aim is to effectively coordinate with property owners, businesses, and the community.
Status: The engineering firm, BGE, Inc., handled the study and schematic design of the Corridor, which was completed in the fall of 2022.
Corridor E4 / East Wilco Hwy (SH 29 – Ronald Reagan Ext)
Location: Between future SH 29 and Ronald Reagan Extension/Corridor D
Description: The county is carrying out the Corridor E Planning and ROW Preservation Study as a component of a proposed ultimate controlled-access roadway in the county’s central area, serving as an alternate north/south transport route to IH35. This study encompasses four segments included in the county’s Long-Range Transportation Plan. Funding for all four segment studies comes from the voter-approved 2019 Road Bond; however, no right-of-way or construction funding is currently allocated for these segments. The County claims this study is a crucial step in planning to manage both current and expected traffic volumes, ensuring reliable transportation as the county grows. Through proactive planning, the county alleges its aim is to effectively coordinate with property owners, businesses, and the community.
Status: The engineering firm, Halff and Associates, handled the study and schematic design of the Corridor, which was completed in the fall of 2022
Seward Junction Loop North
Location: Intersection of SH 29 / CR 260 to intersection of SH 29/213
Description: The Seward Junction Loop North is designed to alleviate congestion by offering an alternative route around the SH 29 and U.S. 183 intersections. Funding for the project comes from the 2023 Road Bond and covers design, Right-of-Way (ROW) preservation, and construction of the initial three lanes of what will eventually be a six-lane divided roadway.
Status: The design plans are anticipated to be finalized by the end of fall 2024, with construction projected to start in early spring 2025.
Chandler Corridor (Seg 1 – SH 130 to CR 101)
Location: Chandler Road between SH 130 and SH 95
Description: The schematic design is in progress for an ultimate controlled access facility featuring two main lanes in each direction, access ramps, and three-lane frontage roads with shared-use paths on each side. Currently, there is no funding for construction. The project is intended to be built in phases over several decades, aligning with regional growth and the availability of funding. Phase 1, consisting of the existing two-lane roadway, was completed in 2012. Phase 2 will develop into a divided highway, and future phases may include main lanes, ramps, and direct connectors.
Status: The engineering firms DEC (Segment 1 from SH 130 to CR 101) and BGE (Segment 2 from CR 101 to SH 95) are currently developing schematic designs. These schematics are expected to be completed by spring 2024.
Chandler Corridor (Seg 2 – CR 101 to SH 95)
Location: Chandler Road between SH 130 and SH 95
Description: The schematic design is in progress for an ultimate controlled access facility featuring two main lanes in each direction, access ramps, and three-lane frontage roads with shared-use paths on each side. Currently, there is no funding for construction. The project is intended to be built in phases over several decades, aligning with regional growth and the availability of funding. Phase 1, consisting of the existing two-lane roadway, was completed in 2012. Phase 2 will develop into a divided highway, and future phases may include main lanes, ramps, and direct connectors.
Status: The engineering firms DEC (Segment 1 from SH 130 to CR 101) and BGE (Segment 2 from CR 101 to SH 95) are currently developing schematic designs. These schematics are expected to be completed by spring 2024.
Corridor H Ultimate (Sam Bass Rd)
Location: 2.6 miles of Sam Bass Road from RM 1431 to
Wyoming Springs Drive
Description: Williamson County has initiated the expansion of Sam Bass Road between RM 1431 and Wyoming Springs Drive to improve safety, enhance mobility, and address both current and future traffic demands as the county grows. The Corridor H / Sam Bass Road Project encompasses:
- Reconstructing the road as a three-lane thoroughfare with a continuous center-turn lane and shoulders
- Building a shared-use path
- Installing traffic signals and crosswalks at Great Oaks Drive (an interim signal was installed in spring 2021)
- Adding traffic signals, crosswalks, and dedicated right and left-turn lanes at Walsh Ranch Boulevard (an interim signal was installed in spring 2021)
- Enhancing signal timing at Wyoming Springs Drive
- Creating an additional left-turn lane on Sam Bass Road for westbound traffic on RM 1431 (completed in August 2020)
- Preparing for a future upgrade to a six-lane configuration
Status: Design was finalized in summer 2021; construction commenced in spring 2023 and is expected to be completed by fall 2025.
Corridor J1
Location: Between IH 35 and CR 230
Description: The county is carrying out Corridor J studies to identify environmental constraints and possible alignments in the north central region of the county. Corridors J1 and J2 have been reviewed and approved by the Williamson County Commissioners Court in August 2023. Discussions with property owners along Corridor J3 are currently in progress. This corridor consists of three segments included in the county’s Long-Range Transportation Plan. While funding for the studies of all three segments is secured, no right-of-way or construction funds have been allocated yet. The County claims these studies are crucial for planning to manage both current and expected traffic demands, ensuring reliable transportation as the county grows. The Commissioners allege this planning phase is essential for the county to effectively collaborate with property owners, businesses, and the community in the area.
Status: The engineering firm, WSB, is currently developing the schematic design, which is expected to be completed by the end of Fall 2023. Meetings with property owners have been concluded. The proposed alignment and arterial roads were presented to the Commissioners Court and received approval on 8/22/2023.
Corridor J2
Location: Between CR 230 and SH 195
Description: The county is carrying out Corridor J studies to identify environmental constraints and possible alignments in the north central region of the county. Corridors J1 and J2 have been reviewed and approved by the Williamson County Commissioners Court in August 2023. Discussions with property owners along Corridor J3 are currently in progress. This corridor consists of three segments included in the county’s Long-Range Transportation Plan. While funding for the studies of all three segments is secured, no right-of-way or construction funds have been allocated yet. The County claims these studies are crucial for planning to manage both current and expected traffic demands, ensuring reliable transportation as the county grows. The Commissioners allege this planning phase is essential for the county to effectively collaborate with property owners, businesses, and the community in the area.
Status: The engineering firm Kimley-Horn is progressing on the schematic design, set to be completed by the end of Fall 2023. Meetings with property owners have already been conducted. The proposed alignment and arterial roads were presented to the Commissioners Court and were approved on 8/22/2023.
Corridor J3
Location: Between SH 195 and U.S. 183
Description: The county is carrying out Corridor J studies to identify environmental constraints and possible alignments in the north central region of the county. Corridors J1 and J2 have been reviewed and approved by the Williamson County Commissioners Court in August 2023. Discussions with property owners along Corridor J3 are currently in progress. This corridor consists of three segments included in the county’s Long-Range Transportation Plan. While funding for the studies of all three segments is secured, no right-of-way or construction funds have been allocated yet. The County claims these studies are crucial for planning to manage both current and expected traffic demands, ensuring reliable transportation as the county grows. The Commissioners allege this planning phase is essential for the county to effectively collaborate with property owners, businesses, and the community in the area.
Status: The engineering firm, Halff Associates, is developing a proposed alignment to connect US 183 with SH 195. As the alignment takes shape, the County is engaging with property owners.
Corridor K
Location: From I-35 at SH 195 to East Wilco Highway
Description: Corridor K, a key component of the Williamson County Long-Range Transportation Plan, has been designated as a vital future east-west connection to sustain safety and mobility amid the county’s rapid growth. This corridor is presently the focus of a planning and Right-of-Way (ROW) preservation study in central Williamson County. The purpose of the study is to identify the optimal alignment and roadway section for this east-west route extending from I-35 to East Wilco Highway.
The study is financed through the County’s Corridor Program. At present, construction funding has not been secured and will need to be established for future phases of the project’s development to proceed.
The County claims that throughout the study, various criteria will be assessed to determine the most suitable route that minimizes both environmental and property impacts. The County and its representatives are engaging with affected property owners and stakeholders to conduct thorough analyses to recommend a preferred alignment for the corridor.
Status: The engineering firm, American StructurePoint, is conducting a study and developing a schematic that is expected to be completed by late 2024. Initially, the Corridor K project was envisioned as a 350-foot right-of-way corridor road project. However, it has since been scaled down to an arterial road with a 150-foot right-of-way. Once construction funding is secured in the future—and if mobility and safety needs justify the construction—a three-lane roadway will initially be constructed. This will include one lane for eastbound traffic, one for westbound traffic, and a centrally dedicated turn lane. As the area develops, a second three-lane roadway will be built, ultimately providing three lanes in each direction.
Ronald Reagan Blvd Corridor (Seg A – FM 1431 to SH 29)
Location: 6.8 miles on Ronald Reagan Boulevard from FM 1431 to SH 29
Description: The County is making plans for the future development of Ronald Reagan Boulevard between RM 2243 and I-35, anticipated to become an eight-lane controlled-access roadway.
Currently, the only section of Ronald Reagan Boulevard with allocated construction funding lies between SH 29 and FM 3405. This segment will construct a new two-lane road to function as the southbound frontage road for the planned eight-lane roadway, while converting the existing roadway to a northbound-only road with a divided median. Further details are available on the County’s project page. As the county continues to grow and additional funding is secured, the rest of the roadway will be constructed to complete the controlled-access road. This segment of the Ronald Reagan Project is included in the County’s Long-Range Transportation Plan and was financed by the voter-approved 2013 Road Bond.
Status: The engineering firm, LJA Engineering, is currently planning the roadway, with completion anticipated by summer 2023.
Ronald Reagan Blvd Corridor (Seg B – SH 29 to FM 3405)
Location: 7 miles on Ronald Reagan Boulevard from SH 29 to FM 3405
Description: The County is making plans for the future development of Ronald Reagan Boulevard between RM 2243 and I-35, anticipated to become an eight-lane controlled-access roadway.
Currently, the only section of Ronald Reagan Boulevard with allocated construction funding lies between SH 29 and FM 3405. This segment will construct a new two-lane road to function as the southbound frontage road for the planned eight-lane roadway, while converting the existing roadway to a northbound-only road with a divided median. Further details are available on the County’s project page. As the county continues to grow and additional funding is secured, the rest of the roadway will be constructed to complete the controlled-access road. This segment of the Ronald Reagan Project is included in the County’s Long-Range Transportation Plan and was financed by the voter-approved 2013 Road Bond.
Status: A temporary traffic signal has been activated at the intersection of Ronald Reagan Boulevard and Santa Rita Boulevard to manage increased vehicle traffic. Construction is expected to start in summer 2024 and is projected to be completed by late 2027.
Ronald Reagan Blvd Corridor (Seg C – FM 3405 to RM 2338)
Location: 3.87 miles on Ronald Reagan Boulevard from FM 3405 to RM 2338/Williams Drive
Description: The County is making plans for the future development of Ronald Reagan Boulevard between RM 2243 and I-35, anticipated to become an eight-lane controlled-access roadway.
Currently, the only section of Ronald Reagan Boulevard with allocated construction funding lies between SH 29 and FM 3405. This segment will construct a new two-lane road to function as the southbound frontage road for the planned eight-lane roadway, while converting the existing roadway to a northbound-only road with a divided median. Further details are available on the County’s project page. As the county continues to grow and additional funding is secured, the rest of the roadway will be constructed to complete the controlled-access road. This segment of the Ronald Reagan Project is included in the County’s Long-Range Transportation Plan and was financed by the voter-approved 2013 Road Bond.
Status C1 (FM 3405 to CR 289): The engineering firm, STV, began design work in spring 2024, with the final design expected to be ready by late summer 2025. Construction is scheduled to start in late 2025 and is anticipated to conclude in late 2027.
Status C2 (CR 289 to west of RM 2338): The engineering firm, Volkert, initiated design work in spring 2024, with the final design expected to be completed by fall 2025. Construction is set to begin in early 2026 and is projected to be finished in early 2028.
Ronald Reagan Blvd Corridor (Seg D – FM 2338 to SH 195)
Location: 6.21 miles on Ronald Reagan Boulevard from RM 2338/Williams Drive to SH 195
Description: The County is making plans for the future development of Ronald Reagan Boulevard between RM 2243 and I-35, anticipated to become an eight-lane controlled-access roadway.
Currently, the only section of Ronald Reagan Boulevard with allocated construction funding lies between SH 29 and FM 3405. This segment will construct a new two-lane road to function as the southbound frontage road for the planned eight-lane roadway, while converting the existing roadway to a northbound-only road with a divided median. Further details are available on the County’s project page. As the county continues to grow and additional funding is secured, the rest of the roadway will be constructed to complete the controlled-access road. This segment of the Ronald Reagan Project is included in the County’s Long-Range Transportation Plan and was financed by the voter-approved 2013 Road Bond.
Status: The engineering firm, Rodriguez Transportation Group, finalized the schematic in summer 2023.
Ronald Reagan Blvd Corridor (Seg E – SH 195 to IH 35)
Location: 5.06 miles on Ronald Reagan Boulevard from SH 195 to I-35
Description: The County is making plans for the future development of Ronald Reagan Boulevard between RM 2243 and I-35, anticipated to become an eight-lane controlled-access roadway.
Currently, the only section of Ronald Reagan Boulevard with allocated construction funding lies between SH 29 and FM 3405. This segment will construct a new two-lane road to function as the southbound frontage road for the planned eight-lane roadway, while converting the existing roadway to a northbound-only road with a divided median. Further details are available on the County’s project page. As the county continues to grow and additional funding is secured, the rest of the roadway will be constructed to complete the controlled-access road. This segment of the Ronald Reagan Project is included in the County’s Long-Range Transportation Plan and was financed by the voter-approved 2013 Road Bond.
Status: The engineering firm, Pape Dawson, is currently developing the design plans for the roadway, which are expected to be completed by summer 2023.
