South Carolina just opened its very first “diverging diamond” lane exchange – a new type of exit and onramp exchange that implements a ‘double-crossover’ traffic pattern designed to decrease congestion.
The new exchange just opened at the Gold Hill Rd. exit off highway 77 in Fort Mill – the second busiest interchange in the region, with over 25k daily drivers.
Construction on the project first started 2019, and has now racked up a total cost $14.5 million.
Here’s a brief explanation of how the new exchange works:
Took a quick drive through the new diverging diamond interchange this morning at Gold Hill Rd and I-77. Pennies 4 Progress at work to improve a very busy interchange. No more back ups waiting to make left turns onto I-77. pic.twitter.com/HCDCyePoko
— YorkcountySCgov (@YorkCountySCGov) September 13, 2021
Here’s a more exhaustive overview of how it works:
The new interchange has already been built in several other states, including North Carolina in the Raleigh area.
Do you think this was a good investment?