(COLORADO) — Seeing and passing the occasional crash is a regular experience if you drive daily. Now, as weather changes and conditions range from sunshine to snow to fog, the Colorado State Patrol (CSP) is asking drivers to beware of causing a crash and being at fault for a secondary one. A secondary crash is a crash that happens due to another crash, most of these are a major cause of line-of-duty deaths for emergency workers. From 2021 to 2024, CSP has handled over 880 secondary crashes. As the winter season approaches, secondary crashes rise with 35% of them happening during poor weather conditions such as snow, fog, freezing rain, and strong winds. Most crashes though, occur during clear conditions, with the peak months being November through January. “First responders are well aware of the risks posed to them as they work on crash scenes,” said Col. Matthew C. Packard, CSP chief.  “They work to investigate thoroughly and clear a scene as quickly as possible, despite how long it can feel to motorists caught in traffic related to a crash.” So, what exactly causes a secondary crash? CSP reveals the top three factors are: Following too close (292) Inattentiveness, distracted driving (195) Speeding (172) As for the top highways with the most secondary crashes, CSP said I-25 topped the list along with: I-25 (330) I-70 (208) I-76 (29) Highway C470 (26) Highway 24 (20) In another step to protect emergency workers, the Colorado Move Over law recently expanded in 2023 to include any vehicle with emergency lighting activated on the road or the shoulder. When passing a vehicle with emergency hazards on, Colorado drivers have two options: Move over at least one lane, and if they can not move over they must slow by at least 20 MPH in a 45 MPH or higher zone. “It is up to all of us to improve the safety on our roadways,” Col. Packard said. “Do your part by putting the distractions down and driving with safety at the forefront.”