McIntyre Street Reconstruction
Jefferson County, Colorado
The 1.2-mile McIntyre Street corridor in northern Jefferson County lies in a rapidly developing area transitioning from a rural to a suburban area northwest of Denver. This project improved safety, operations, and multimodal transportation in the corridor by improving McIntyre Street to a four-lane minor arterial roadway, while minimizing impacts to surrounding landowners. The typical roadway cross-section for McIntyre Street includes four through lanes, bike lanes, a raised median, curb, gutter, and eight-foot sidewalks. A major project feature is a bridge over Van Bibber Creek that includes a recreational trail underpass. Muller’s alternatives analysis report for this structure guided Jefferson County’s decision makers to select a two-span configuration. This design minimized the superstructure depth to provide ample hydraulic freeboard and achieve vertical clearance for the trail underpass. The McIntyre Street profile was raised by less than three feet in the vicinity of the bridge, facilitating nearby driveway connections and limiting impacts to adjacent landowners. Muller staff supported Jefferson County staff with public involvement throughout the project design, including meetings with individual property owners to address impacts of the roadway construction with them. Muller completed hydraulic analysis of the structure opening and bridge alternatives to create no rise in the floodplain and an economic analysis of the structure type to carry the floodplain and trail under the new bridge.
OWNER
Jefferson County
SERVICES
Transportation Planning & Design
Structural & Bridge Design
Traffic Engineering & ITS
Stormwater & Floodplain Management
Water & Wastewater Utilities
Statistics
1.2 Miles of Bike Lanes | 1 Bridge Hydraulic Design and Scour Mitigation | 1 Roadway Bridge | 18 Curb Ramp Improvements and Upgrades | 6 Intersections | 1 Pedestrian Underpass | 1.2 Miles of Urban Roadways | 430 Feet of New Sanitary Sewer Lines | 1.2 Miles of Sidewalks | 2,837 Feet of Storm Drains | 2 Traffic Signals | 5,189 Feet of Water Lines