Norris Viaduct
The Norris Viaduct connecting south and north Cheyenne over the Union Pacific Railroad was built in 1952 and in 1998 had deteriorated to the point that it needed to be replaced. A study conducted in 1998 set the stage for the relocation and replacement of the structure along with the approach roadways to the viaduct. Later studies also recommended the redevelopment of the adjoining neighborhood, which is one the oldest neighborhoods in Cheyenne. In the spring of 2003, the Cheyenne Metropolitan Planning Organization (MPO) set the wheels in motion for this, the city's largest public works project in Cheyenne's history by requesting proposals from engineering firms.
Olsson Associates was chosen to provide preliminary and final design services for the replacement of the Norris Viaduct, including completing an environmental assessment and later managing the project's construction services.
Traffic volumes on the streets approaching the viaduct were determined to be slightly above capacity, causing delays and accidents in the neighborhood. By replacing the viaduct and widening and reconfiguring the streets, the opportunity for improved safety was enhanced and neighborhood revitalization occurred. In addition, the project also included the creation of several green spaces, pocket parks, and an extension of the Crow Creek Greenway, a link in the City's hiker biker trail system and one of several jewels in Cheyenne.
The bridge was completed and opened to the public in October of 2009. Landscaping will be planted in the spring of 2010.
Olsson Associates was chosen to provide preliminary and final design services for the replacement of the Norris Viaduct, including completing an environmental assessment and later managing the project's construction services.
Traffic volumes on the streets approaching the viaduct were determined to be slightly above capacity, causing delays and accidents in the neighborhood. By replacing the viaduct and widening and reconfiguring the streets, the opportunity for improved safety was enhanced and neighborhood revitalization occurred. In addition, the project also included the creation of several green spaces, pocket parks, and an extension of the Crow Creek Greenway, a link in the City's hiker biker trail system and one of several jewels in Cheyenne.
The bridge was completed and opened to the public in October of 2009. Landscaping will be planted in the spring of 2010.