TL/DR –
A construction project on I-17 between Dunlap Avenue and Deer Valley Road in Phoenix has been completed, eliminating further weekend closures. The project included the use of diamond grinding to smooth the freeway’s concrete surface, replacing an older, worn layer of asphalt. According to Doug Nintzel, an ADOT spokesman, this type of surface treatment is expected to last for about 30 years before maintenance is required, longer than the 10 years typically seen with asphalt surfaces.
North Phoenix Construction Project on I-17 Pavement Completed
The I-17 pavement project between Dunlap Avenue and Deer Valley Road in north Phoenix has been completed after a year. This brings an end to scheduled weekend closures associated with the construction work.
During the project’s final weekend, workers completed the last lane striping. Diamond grinding was applied to smooth the freeway’s concrete surface along this stretch of the I-17. This process involved removing the top layer of asphalt and smoothing out the underlying concrete using specialized machines. The machines also create small grooves to help reduce tire noise on the freeway. ADOT spokesman Doug Nintzel described the improvement as a significant leap from the previously bumpy ride.
Nintzel explained that the diamond grinding applied to the freeway is expected to last about 30 years before it requires maintenance. In contrast, the asphalt surface typically lasts around 10 years. Therefore, in terms of cost, diamond grinding the concrete surfaces of the freeway prolongs the time before any follow-up work is needed.
Click or tap here for more detailed information about the I-17 pavement project.
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