A recent Maricopa Association of Governments news release notes that the system has worked as designed and addressed the longstanding problem of rainwater building up in cross-street underpasses along this stretch of I-17 in Phoenix.
ADOT supports monarch butterflies by planting and managing butterfly-friendly habitats along roadsides to help monarchs during migration and help ensure that future populations of monarchs thrive
It didn't happen quite as quickly as it might seem from the time-lapse video above, but as bridge projects go this job in northwestern Arizona was lightning fast.
