For a concept level study, the University of Arizona (UA) contracted with NCSG to provide geotechnical recommendations for one of the most unique structures that was planned in Tucson or […]
Category: Additional Projects
I17 Widening: Phoenix to Black Canyon City
The Arizona Department of Transportation (ADOT) is widening the existing Interstate 17 (I17) between Downtown Phoenix and Black Canyon City. The first phase of the project called for widening of […]
US 191: Guthrie Bridge
The Arizona Department of Transportation (ADOT) replaced the Guthrie Bridge that takes US 191 over the Gila River in Greenlee County, Arizona. The new bridge is located 200- to 400-ft […]
Ajo Drainage Improvements
After extensive damage from a flood in 2003, Pima County embarked upon several drainage improvement projects. NCSG performed seismic refraction surveys and soil borings to determine excavatability for potential channel […]
Cortaro Road Soil Nail Walls
Performed design and post-design services for the widening of the Cortaro Rd. underneath I-10 by cutting into the embankment slope between the abutment and the pier and using soil nail […]
La Cañada Soil Nail Wall
Prepared performance specifications and reviewed third party soil nail wall designs on behalf of the Town of Oro Valley for a retaining wall along La Cañada drive near Dutton Place. […]
Ryan Dike
Ryan Dike is an approximately six-mile long earthen dike on the southwest side of the San Simon River, approximately 10 miles northeast of Bowie, Arizona. Ryan Dike was constructed by the […]
SR 90: Sierra Vista Multi-Use Path
The purpose of this project is to construct a Multi Use Pathway (MUP) along SR 90 between Fort Huachuca East Gate and North 7th Street in Sierra Vista. NCSG performed […]
SR 170: San Carlos
Design of a light-weight concrete fill (LCF) retaining wall for a sidehill roadway widening. Railroad tracks were within 20-ft of the toe of the existing slope, with a Southwest Gas […]
I-10/Miracle Mile TI: MSE Wall Distress
Cracks had formed in the cast-in-place (CIP)concrete facing of two MSE (mechanically stabilized earth) retaining walls along the WB lanes of I-10 at the Miracle Mile TI. NCSG was tasked […]