Overcoming Site Challenges:
- Time Constraints
- Extremely Soft Subgrades
- Shallow Underground Utilities
Geoweb System Strengthens Highway Subgrade
New Mexico’s State Highway and Transportation Department (NMSH&TD) made news with innovative financing and a record setting pace in the construction of 118 miles (190 km) of four lane highway along a route in the northwestern part of the state formerly known as Highway 44. With a construction timetable of just two years, and with the construction season limited by cold Rocky Mountain winter weather, design engineers needed to solve construction challenges without delay.
Dumping sand infill in the GEOWEB cellular confinement system.
The Geoweb System Met Site Challenges
Presto Geosystems’ GEOWEB Cellular Confinement System was the perfect answer to a unique soft subgrade problem that threatened to stop paving operations with just a half mile of highway to complete and cold winter temperatures only months away.
The finished roadway is paved with asphalt.
While most of the highway, now known as U.S. 550, runs through remote and open country, the highway passes through the small town of Cuba. With time pressures, extremely soft subgrade conditions, relatively shallow underground utility lines running under the highway, and a need to tie in to the existing elevations of sidewalks and parking lots of businesses adjacent to the highway, design engineers were faced with a challenge.