Darrell Johnson’s ability to keep a $2-billion design-build highway widening on track despite multiple risks and challenges stems partly from his experience by way of commuter rail.
Orange County, Calif., is studying the feasibility of converting several existing freeway carpool lanes into tolled express lanes to help alleviate increasing congestion.
Dubbed by project officials as the world’s largest wastewater purification facility of its kind, the Orange County Water District Ground Water Replenishment System now treats up to 100 million gallons per day of wastewater.