KY 329B
KY 329B Study Purpose
Oldham County, in partnership with the Kentucky Transportation Cabinet (KYTC), is in the initial stage of a transportation planning study along KY 329B from just south of the I-71 interchange to KY 22 in Crestwood.
The study has analyzed existing conditions and will engage with local officials, stakeholders, and the public to identify potential project concepts to improve safety and reduce congestion along KY 329B within the study area. These concepts will be prioritized with estimated costs for future project planning. A report documenting the process and its recommendations is expected to be available online in 2025.
Existing Conditions
This data helps identify potential areas of concern and informs future design concepts.
Roadway Geometry
KY 329B is a four lane highway with primarily 11-foot-wide lanes. The sections between Madison Park Place to Kenwood Station Elementary and between KY 146 to KY 22 feature a Two Way Left Turn Lane. The majority of the route has a 10 foot asphalt shoulder.
As an urban minor arterial, KY 329B is expected to provide a high degree of mobility, connecting I-71 to Crestwood. KY 329B is a partially controlled access highway, with access only provided at specific locations.
There are currently no sidewalks or other facilities for pedestrians or bicyclists along KY 329B.
There is one deficient curve (meaning they're too sharp and limit sight distance) along the route. This is located between Dragon Rd and Dragon Dr.
Travel Speeds
The posted speed limit along KY 329B is 55 mph. The portion of KY 329 just south of the I-71 interchange is posted at 45 mph.
GPS data shows travel speeds between KY 329 and the Oldham County school complex are typically higher than the posted speed limit throughout the day. Significant slowdowns occur between Dragon Dr and KY 22.
Traffic Conditions
Traffic data collected in early 2024, shows 10,100-11,600 vehicles per day (vpd) using KY 329B. Projected traffic volumes for 2045 have also been calculated. This includes the traffic expected from the construction of the Clore Station development. The additional traffic from this development has a major impact on projected traffic volumes in the future.
Level of Service (LOS)
LOS is a qualitative measure that describes traffic conditions based on measures such as speed and travel time, freedom to maneuver, traffic interruptions, comfort, and convenience. It is rated on an A to F scale, with A representing free-flow conditions through F representing oversaturated conditions with highly congested delays. LOS D is typically considered acceptable in urban areas. For intersections, LOS is defined by the average vehicle control delay at the intersection. The signalized intersections along KY 329B vary from LOS B to LOS E for current traffic volumes.
For predicted 2046 traffic volumes, the signalized intersection at KY 146 operates at LOS F, as do several approaches at the unsignalized intersections.
Crash Data
During the five-year (2019-2023) analysis period, 244 crashes were reported, including 45 injury collisions.
By crash type, angle crashes were most common (44%), followed by rear end (31%) and single vehicle (7%). The top two crash types, angle and rear end comprise 75% of crashes.
Higher concentrations of crashes were found at the commercial entrances just south of the I-71 interchange and at the major intersections along the corridor.
Safety Analyses
Level of Service of Safety (LOSS) is a statistical analysis that highlights high crash concentrations and is a statistical comparison of safety performance for similar highways statewide.
LOSS is a newer, more refined calculation that provides a quantitative assessment and qualitative description of the degree of safety of a roadway segment or an intersection.
To the right, this statistical crash analysis is used to identify preliminary locations along the corridor, which may be candidates for spot improvements as they currently experience higher crash rates than expected. These locations include the segment of KY 329 between I-71 and KY 329B and the following intersections with KY 329B:
KY 329, Dovefield Dr, Kenwood Dr, Dragon Dr, Dragon Rd, KY 146 (Lagrange Rd) and KY 22 (Ballardsville Rd)
Environmental Setting
The environmental setting informs the study team of sensitive resources to be aware of as future concepts are considered, including:
- Historical Resources
- Ecological Resources
- Hazardous Material Locations
- Community Resources
- Socioeconomic Populations
- Potential Air and Noise Concerns
Previous Studies
In addition to reviewing existing conditions, previous studies completed in the area are reviewed to understand future plans and concepts previously considered. Where they may be overlap with he current study area, current (2024) conditions and future 20-year projections are reviewed to understand if previously considered concepts are still appropriate or if other options may need to be considered.
Oldham County Intersection Improvement Study – 2006
This study analyzed potential improvements at four intersections within Oldham County, including KY 329 Bypass with Westwind/Arbor Ridge and KY 329 Bypass with KY 22. The report considered improving intersections through signalization or construction of modern roundabouts. Project Details | KYTC
I-71 Corridor Study Between I-64 and I-75 – 2014
KYTC initiated this strategic corridor planning study to address safety and congestion and identify and evaluate improvements along the I-71 Corridor between I-64 in Jefferson County (Spaghetti Junction) and I-75 in Boone County, a distance of 77.7 miles. Study recommendations included widening I-71 to 6 lanes in the sections adjoining the KY 329 interchange and the signalization of both ramp terminals, with the construction of left turn lanes. Project Details | KYTC
KY 329B to KY 146 Connector Study – 2016
This study analyzed alternatives for an improved access between KY 329B and KY 146, to reduce congestion at the existing intersection of KY 329B and KY 146 and improve access and mobility in the northern portion of Crestwood. The recommended alternative from the study connects the end of the existing entrance to Kenwood Station Elementary School to KY 146 at the entrance to Crestwood Animal Hospital and Stockyards Bank and Trust. The proposed connection would be an urban roadway typical section with curb and gutter and sidewalks. This project is currently in the preliminary design phase. STUDY AVAILABLE UPON REQUEST
Crestwood Railroad Crossing Study – 2022
KYTC initiated this planning study to examine a recurring mobility challenge on KY 329 at the CSX railroad at-grade crossing in Crestwood. This study identified potential solutions to reduce the number of heavy trucks using this railroad crossing.
Next steps of this 2022 study include KYTC coordination with CSX, city/county officials, and other stakeholders regarding the study findings. Locally, there is interest in pursuing intersection improvements to streamline operations along KY 22 and KY 146, including the intersections with KY 329B, independent of the railroad crossing. Project Details | KYTC
Nearby Planned Projects/Concepts
Planned projects and project concepts (CHAFs) for future improvements in the vicinity of the study area are displayed here.
Public Comment
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