Federal, state and local officials have launched the third phase of the State Route 57/60 Confluence Chokepoint Relief Project.
With a total cost of $444.12 million, officials say the changes aim to relieve traffic congestion at “one of the most complex and problematic freeway junctions in the nation.” Once complete, officials said it will enhance traffic flow, alleviate congestion, improve commuter safety and air quality and increase the efficiency of the movement of goods.
“We are excited to be breaking ground on this regional highway priority project,” San Gabriel Valley Council of Governments President and Monrovia Mayor Becky Shevlin said in a statement. “For decades, the SR 57/60 confluence has been a constant burden for commuters and businesses in our region, solidifying its position as California’s most notorious truck bottleneck. Today, we take a significant step forward in addressing those traffic challenges head-on.”
The State Route 57/60 Confluence is a crucial intersection that links State Route 57 and State Route 60, serving as a critical nexus for connecting Los Angeles, Orange and San Bernardino counties. The two-mile-long artery passes through the cities of Diamond Bar and Industry and carries a daily traffic volume of approximately 350,000 vehicles, according to The San Gabriel Valley Council of Governments.
Due to lane drops and hazardous weaving between trucks and commuters, the interchange is among the highest truck-accident locations in Southern California and, according to American Transportation Research Institute, it is the seventh-worst truck bottleneck in the nation.
This highway improvement project is a partnership among the San Gabriel Valley Council of Governments, Los Angeles County Metro, Caltrans and the Cities of Industry and Diamond Bar. Skanska, a global construction and development firm, signed a $267 million contract with the San Gabriel Valley Council of Governments to make the improvements.
To achieve…
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