Transportation
I-25/Cimarron Interchange Design Build
I-25 and Cimarron Street (US 24) interchange, Colorado Springs, CO
The I-25/Cimarron Street (US 24) interchange is the gateway to downtown Colorado Springs and one of the busiest junctions in the Pikes Peak region. Decades of poor roadway performance — settlement of embankments and walls on soft soils along Fountain Creek — had made it a persistent maintenance problem. CDOT's $77 million design-build reconstruction, delivered with Kraemer North America, completely rebuilt the interchange: new bridge foundations and bridges, new embankments, numerous MSE retaining walls, temporary and permanent pavements, improvements to the major drainages, and culvert and jack-and-bore utility installations.<br /> <br /> Vivid Engineering supported the project with quality oversight, construction inspection and materials testing, geotechnical design, and structural fill monitoring. Because of the corridor's history of settlement, significant analysis, design, and construction monitoring were performed to protect the new embankments and retaining walls — work grounded in our team's deep experience with DOT and FHWA design-build requirements, procedures, and specifications. The result is a modern interchange built to perform on ground that had troubled the corridor for decades.
