The I-10 Broadway Curve project took place on one of the most traveled stretches of the Arizona highway. On an average weekday, more than 300,000 vehicles passed through this area, leading to years of traffic congestion, long commute times and unpleasant driving experiences. The Arizona Department of Transportation (ADOT), expecting an increase of over 75,000 more vehicles by 2040, decided a major renovation was needed.
An Ambitious Scope
The project initiated first steps in 2019, solidifying the scope of the project to 11 miles of I-10. One major construction component was the widening of the highway to six general purpose lanes and two high-occupancy vehicle lanes in each direction, greatly increasing mobility.
The project also required the rebuilding of the interchange with another highway, SR 143, for improved traffic flow for drivers. ADOT also added collector-distributor roads to separate through-traffic on the highway and local traffic entering or exiting the highway. Rebuilding the I-10 interchange with SR 143 to improve traffic flow and create direct connections to and from SR 143 for drivers in the I-10 HOV lanes.
It also included the replacement of bridges that ran over I-10, the Broadway Road bridge and the 48th Street bridges, as well as the widening of the I-10 bridges over the Salt River. ADOT prioritized increased mobility for pedestrians and cyclists, with the inclusion of two bridges for pedestrians and bicyclists over I-10 and improving the Sun Circle Trail crossing at Guadalupe Road…