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Vehicles
2
Injured
0
Weather
Clear
Lighting
Daylight

These are the most relevant recent crash reports within 5 miles of this location.
21ST AVE & COLLYER ST
< 0.1 miOct 20, 2025 | Rear-End Collision
2 vehicles
E 21ST AVE & COLLYER ST
< 0.1 miMar 3, 2025 | Rear-End Collision
2 vehicles
COLLYER ST & 21ST AVE
< 0.1 miNov 19, 2025 | Multi-Vehicle Crash
3 vehicles
21ST AVE & COLLYER ST
< 0.1 miJun 3, 2025 | Two-Vehicle Crash
2 vehicles
On Wednesday, June 11, 2025, at approximately 6:49 AM, a rear-end collision occurred on 21ST AVE, near COLLYER ST, LONGMONT, BOULDER County, Colorado. 2 vehicles were involved in the property damage only-level incident, which resulted in no reported injuries. Clear weather conditions and daylight lighting were noted at the time of the crash.
Use the case number, responding agency, and records office details below to request the official crash report.
Case number
25-6408
Use this with Longmont Department of Public Safety when requesting the official report.
Reporting agency
Longmont Department of Public Safety
Use the agency page or records guide for request instructions.
Records office
Longmont Department of Public Safety
Crash location reference
Collyer St
Route 0820 | 21sta | At Intersection
Crash classification
Rear End
Pulled directly from the preserved source record.
Near 21ST AVE, AT, COLLYER ST, LONGMONT, BOULDER County, CO, LONGMONT
These are the most relevant recent crash reports within 5 miles of this location.
21ST AVE & COLLYER ST
< 0.1 miOct 20, 2025 | Rear-End Collision
2 vehicles
E 21ST AVE & COLLYER ST
< 0.1 miMar 3, 2025 | Rear-End Collision
2 vehicles
COLLYER ST & 21ST AVE
< 0.1 miNov 19, 2025 | Multi-Vehicle Crash
3 vehicles
21ST AVE & COLLYER ST
< 0.1 miJun 3, 2025 | Two-Vehicle Crash
2 vehicles
COLLYER ST & 21ST AVE
< 0.1 miApr 24, 2024 | Broadside (T-Bone)
2 vehicles
Request a free case review from a qualified attorney
General information based on this crash's reported factors and Colorado law
Rear-End Collision Pattern
In Colorado, the trailing driver in a rear-end collision is often presumed to be at fault for following too closely, though this presumption can be rebutted with evidence.
Springs Law Group - Rear-End CollisionsThis is general informational context, not legal advice. Every crash is different. If you were involved in this accident, consult with a qualified attorney for guidance specific to your situation.
When the crash record shows no reported injuries, an ambulance destination is usually not inferable from CDOT data alone. If symptoms appear later, CrashStory should point users toward urgent care or the nearest emergency department instead of a trauma-center assumption.
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