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Select Projects
Vastco projects can be found throughout the State of Arizona, on city, county, state, federal and private roadways.
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Hoover Dam Bypass - Arizona Approach
As part of the Arizona Approach to the Hoover Dam Bypass Project, Vastco entered into a joint venture with R.E. Monks Construction of Fountain Hills, Arizona. As construction manager for the project, Vastco coordinated the effort to construct two new structures that cross a 160-foot deep desert canyon and approach the Colorado River approximately 1,500 feet downriver from Hoover Dam. The signature structure is a 7-span 902-foot long concrete type 6 ASHTO girder bridge. The other structure is a single span 145-foot long type 6 ASHTO girder bridge that will become the traffic interchange accessing to the Hoover Dam. Performed in an environmentally sensitive habitat, the project team drilled, shot and excavated 1.7 million cubic yards of materials, constructed bridges, realigned the existing Hoover Dam access roads, and improved Park Service access. All work minimized impact to endangered Desert Bighorn Sheep and Desert Tortoise. The Monks-Vastco joint team team of experts completed the $21.5 million Arizona Approach on time and within Federal Highway Administration schedule.
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State Route 179
As a subcontractor on the SR 179 project, Vastco built two concrete type 3 modified ASTHO girder bridges along the new alignment of State Route 179 through Sedona. Vastco bridges, including the Bell Rock signature bridge, were delivered on time and within budget. This work was performed in the environmentally sensitive Coconino National Forest.
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Interstate 17/Interstate 40 Traffic Interchange Project
The I-17/I-40 TI project involved rebuilding the interchange where two high volume interstates meet in Flagstaff, Arizona. The Vastco team delivered a traffic interchange with a half-mile post-tension concrete signature flyover bridge, 5 additional bridges, and 1 tunnel. This high-profile TI was delivered to ADOT 19 months ahead of schedule and included $1.5 million in Value Engineering savings. This project was awarded the prestigious Marvin M. Black Award for Excellence in Partnering in 2003.
Award Winning!
Marvin Black Partnering in Excellence Award
Named for AGC's 1991 President Marvin M. Black – an ardent supporter of the partnering process–the Marvin M. Black Excellence in Partnering Awards recognize the successful partnerships and collaborations that work to improve construction projects.
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East Flagstaff Traffic Interchange
The East Flagstaff TI required an innovative approach to traffic control to accommodate high traffic volumes through an interchange which connects I-40 to the US 89 to Page and the Grand Canyon. Vastco minimized impact to the traveling public, while building a type 6 ASHTO girder bridge over the BNSF Railroad and Route 66. The reconfiguration of this interchange is the largest TI project contracted in northern Arizona, and will be delivered to ADOT on time and with Value Engineering due to creative traffic control. TI improvements included adding several miles of pedestrian and bicycle trail to the Flagstaff Urban Trail System.
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Cedar Avenue Pedestrian Bridge
The Cedar Avenue Pedestrian and Bicycle Bridge is a skewed-arch, post-tension bridge which incorporates naturally-occurring materials and an unobtrusive visual aesthetic to blend the structure with the Flagstaff mountain viewshed. As part of the CM@R process, Vastco staff worked with the design team to create a constructible design which exceeded City of Flagstaff expectations. The results of this close work with the client garnered the Cedar Avenue Bridge a Southwest Contractor Magazine Best of 2007 Concrete Project Award.
Award Winning!
Southwest Constractor Bridge of the Year
This award is given to the best bridge regional bridge project, as determined by Southwest Contractor Magazine.
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SR 89/SR 89A Traffic Interchange
The State Route 89/State Route 89A Traffic Interchange project consists of two bridges which span SR 89 and connect SR 89A with Pioneer Parkway north of Prescott, Arizona. These post-tension concrete structures were built using falsework over SR 89, at a minimal impact to motorists. The bridges are complimented by concrete, aesthetic “sound walls” which reduce roadway noise for area residents. The SR 89/SR 89A TI project involved creative traffic control and was delivered on time and within budget.
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