Longmont-to-Boulder Regional Trail 

Longmont-to-Boulder: IBM Connector Trail

Trail DiagramThe IBM Connector Trail is a planned multi-use regional trail that will connect the Gunbarrel community to the City of Boulder parks and trails system.

The preferred trail alignment was shaped by the IBM Trail Connector Community and Environmental Process (CEAP) Reportthat was completed by the City of Boulder. The CEAP was the result of public input and an environmental study.

The trail is currently being designed with construction anticipated in 2015/2016. Once complete, the trail will be managed and maintained by the City of Boulder.

Alignment Details

The trail improvements are approximately 0.6 miles long with a primarily crusher fines surface. Three underpasses will be built at SH 119 (Diagonal Highway) and the BNSF Railroad. In addition, two bridges will span Dry Creek and the Whiterock Ditch. The trail will connect to the existing Cottontail Trail on the east side of the Diagonal Highway and to the existing Boulder Reservoir Trail System and Tom Watson Park on the west side of the Diagonal Highway.


This project was funded through federal transportation enhancement funds, the City of Boulder, and Boulder County.  Federal funds are part of the Longmont-to-Boulder Regional Trail Connections project for which Boulder County was approved for funding in 2007. Boulder County used dedicated funds for trail implementation passed by Boulder County voters in 2001 and extended in 2007.


Matt Wempe, AICP
Regional Trails Planner
Boulder County Transportation
303-441-3900 or via email