Diagonal Bikeway
Between Boulder and Longmont along Colorado Highway 119 in Boulder County
April 16, 2026
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Completion of the $165 million Diagonal Bikeway, a nine-mile paved off-street path between Boulder and Longmont along Colorado Highway 119, is expected by January 2027.
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PROJECT DETAILS
Location
Between Boulder and Longmont along Colorado Highway 119
Status
Current
Location
Between Boulder and Longmont along Colorado Highway 119
City
Boulder County
State
CO
Project Cost
$165 million
Owner
Colorado Department of Transportation
Developer
CDOT, Boulder County, the Regional Transportation District, Commuting Solutions and the cities of Boulder and Longmont.
General Contractor
Kraemer North America
Size
9 miles
Construction Start
September 2024
Completion Date
January 2027
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