A fatal crash has shut down the southbound lanes of U.S. Highway 183, also known as Research Boulevard, in north Austin, bringing traffic to a standstill between the Capital of Texas Highway and Burnet Road. Emergency crews and traffic investigators are working the scene and say the closure will stay in place while they process the crash. Authorities have not released the victim's identity or any information about what caused the wreck.
What police posted
The Austin Police Department announced the incident in a post on X, writing that officers were handling a traffic fatality in the 9200 block of Research Boulevard, or U.S. 183. The department also warned drivers to expect delays, and that post remains the main official word on the closure.
Where traffic is blocked
The crash has shut the southbound "proper," meaning the main freeway lanes, while the frontage roads remain open. Drivers cannot use the primary travel lanes of U.S. 183 between the Capital of Texas Highway, also known as Loop 360, and Burnet Road. That is forcing traffic from the MoPac/Loop 1 interchange and points north onto surface streets and service roads, which is already translating into heavy congestion on navigation apps across north Austin.
Research Boulevard's history of serious crashes
This stretch of Research Boulevard has seen multiple deadly collisions in recent years. City records show that investigators routinely shut down the highway after fatal crashes so they can document the scene and collect evidence. In a separate fatal collision in the 9600 block of Research Boulevard, a City of Austin press release noted a similar full closure while investigators worked the scene. Those incidents are logged in City of Austin records, which also include information on how to share tips with detectives.
Safety context
The fatal crash fits into a broader pattern in the corridor. Vision Zero ATX's fatality tracker lists several deadly incidents on Research Boulevard and U.S. 183, reflecting long-standing safety concerns that transportation planners have tried to address. The Vision Zero ATX data show repeated vehicle versus pedestrian collisions as well as serious motorcycle crashes along this part of the highway in recent years.
How to report information
Anyone who witnessed the crash or has relevant dashcam or phone video is asked to contact the Austin Police Department's Vehicular Homicide Unit at 512-974-8111. Anonymous tips can be submitted through Capital Area Crime Stoppers, consistent with the guidance provided in fatal-crash notices from the City of Austin. This story will be updated as APD releases additional details about the victim and the cause of the crash.
