strobe has since been removed. In addition to the strobing signal light, rumble strips have been cut into the bridge deck at several intervals, and there is a sign that turns on if the signal is red and the speed limit is reduced, further alerting traffic that the freeway is ending. Part of the bridge deck is shared with an exit-only lane leading to a cloverleaf ramp to Interstate 10/US 60 Eastbound to Tucson, which has a ramp speed limit of only to access the freeway. Traffic is frequently backed up to University Drive from this exit, and has raised additional safety concerns of the intersection and highway junction. Also, the Broadway Road intersection is less than one quarter mile south of I-10. Traffic is currently backing up from that intersection to I-10, causing further delays and potential accidents due to the visibility and design of the bridge over I-10. ADOT is currently studying the redesign of the southern section of SR 143, including the infamous bridge, to the Sky Harbor Airport exit in an attempt to fix the numerous safety issues with the addition of collector-distributor lanes when the freeway is widened in the near future. C/D lanes are also known to split a freeway into "local" and "express" lanes. Because SR 143 connects the Red Mountain Freeway (Loop 202) to Interstate 10, this route is popular with local commuters seeking to bypass a stretch of Interstate 10 and US 60 between the Mini Stack and the Broadway Curve, adding to additional traffic overload and safety issues at the interchange with SR 143/I-10/US 60. The speed limit on I-10 throughout the city of Phoenix is currently . Many other area freeways have limits of , notable exceptions being the Sky Harbor Expressway with , Arizona 51 south of Glendale Rd with 55 mph, and Interstate 17 with . Exit list References External links SR 143 Construction Projects See also Hohokam Sky Harbor International Airport List of Arizona State Routes Arizona State Route 153 (a highway that used to run immediately parallel to SR 143, carrying some adjacent traffic) 143 143 Transportation in Maricopa County, Arizona Interstate 10 Transportation in Tempe, Arizona