Multiple Crashes with Injuries Block US-1 Southbound at MM110-111

Multiple crashes on US-1 southbound at mile markers 110 and 111 in Key Largo forced roadblocks and closed all lanes, and injuries were confirmed, according to an initial report that said FDOT issued repeated updates through the evening. The disruptions on the Overseas Highway created heavy traffic across Monroe County and prompted emergency response along the upper Keys corridor.

A Facebook post that appears to report the same morning activity noted, “Approximately 9am there is a vehicle crash with injuries causing a roadblock on US-1 SB (Overseas Highway) near” before the post was truncated, leaving the precise reference point unclear. The post’s timestamp and author were not included in the supplied material, and the Facebook excerpt did not specify whether it referenced the MM110-111 incidents.

Official details remain limited in the materials provided: the original account states only that there were “multiple crashes reported on US-1 southbound at mile markers 110 and 111 in Key Largo, causing roadblocks and all lanes closed. Injuries confirmed; FDOT issued repeated updates through the evening. Traffic heavily impacted in Monroe County.” No vehicle counts, number of injured, injury severity, or names were included in those excerpts.

The traffic disruption has potential economic consequences for Key Largo and the rest of Monroe County because the Keys combine a resident base and a large visitor economy. A separate personalinjuryinmiami article cited in the materials notes that “The Keys are home to tens of thousands of people and the area sees millions and millions of visitors each year,” underscoring how closures on US-1 can affect daily commutes, deliveries and tourism-related businesses that rely on predictable highway access.

That same personalinjuryinmiami excerpt provided recent regional context but described distinct incidents: a late-February multi-vehicle collision near Mile Marker 119 that “critically injured two people” and involved a GMC pickup truck, a Hyundai, and a Chevrolet sedan, and a fatal one-car crash in Key Largo where “a woman, whose name was also not released, apparently lost control of her vehicle and struck a utility pole.” The site also referenced “a fatal crash that cut power and shut down three nearby schools” and asserted that “The Keys have led the state in recent years in the rate of deaths by motor vehicle accidents,” characterizing possible influences such as “intoxication or other impairments” given high tourist volumes.

At present, the supplied materials do not include official injury counts, incident causes, or comments from the Monroe County Sheriff’s Office or Florida Highway Patrol. FDOT’s repeated evening updates were noted but not provided in full. Investigations and agency statements will be required to determine vehicle totals, victim conditions and the timeframe for reopening US-1 SB through MM110-111.