
Magnus White (11/18/2005-7/29/2023) was an up and coming Cyclocross racer from Boulder that showed his talents by winning the 2021 US Cyclocross UCI Junior Men National Championship. He was a member of the 2023 USA Cycling National Cyclocross Team when his lost his life. People of all bike skills use Lee Hill Drive daily, with many competitive bicycle racers using this road to train as well. Our hearts go out to the White family as we continue to show our support for bike safety on all roads.
The trial involving the collision when a vehicle hit and killed Magnus White on Hwy 119 from behind starts 3/31/2025-4/4/2025.

Boulder County Adds BIKE MAY USE FULL LANE sign to westbound Lee Hill Drive (11/2021). This combined with the zero shoulder width per the County's own research makes this THE most dangerous mountain road for bikes and vehicles. This means that 4+ miles going westbound is now designated for bikes to fully use instead of staying on the right side with cars legally giving 3' by law.
When these facts were presented to the county multiple times they added 18 signs on Lee Hill Drive July 2023 to alert everyone that both vehicles and bikes use this road. This is a welcome addition BUT does not make this road safe since the core issues are still present.
This old mountain road is already narrow, vehicles are now forced to go into the opposing traffic side when passing a bike. With the multiple blind turns vehicles are frequently facing each other with countless close calls happening over the years.
NO OTHER ROAD in Boulder County has a permanent BIKE MAY USE FULL LANE allowance of this distance. This is inconsistent with how this law is typically used (construction zones) and the most dangerous use of this law.
SOMEONE WILL DIE BECAUSE OF THIS AND IT WILL BE THE FAULT OF BOULDER COUNTY BECAUSE THEY
HAVE BEEN MADE AWARE OF THIS ISSUES FOR YEARS!
Boulder county has added a “Bikes may use full lane” sign to the westbound lane of Lee Hill Drive, this is one of the most dangerous mountain roads for bikes according to their own study and directly conflicts with Colorado state bike law § 42-4-1412.
When bikes are going uphill are doing 2-5 MPH on average while cars are doing 20+ MPH the county has now made the road even MORE DANGEROUS than before by stating that bikes can be in the middle of the road on all sections of Lee Hill drive including the blind right turns. They also still state that bikes need to be single file on this road meaning they can all be single file in the middle of the road as one example of inconsistent and dangerous messaging for both bikes and cars!
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State bike law § 42-4-1412. Operation of bicycles and other human-powered vehicles:
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Persons riding bicycles or electrical assisted bicycles upon a roadway shall not ride more than two abreast except on paths or parts of roadways set aside for the exclusive use of bicycles.
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Persons riding bicycles or electrical assisted bicycles two abreast shall not impede the normal and reasonable movement of traffic and, on a laned roadway, shall ride within a single lane.
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BikesBeSafe LeeHill Drive Brochure for download:



























































