Town of Marana issued the following announcement on Mar. 3.
Due to major road construction on Ina Road west of the Santa Cruz bridge, it is recommended that all foot and bicycle traffic avoid traveling on top of the Ina Road bridge. Please use the passage under the bridge, as it is clear and free of construction.
For your safety and that of the contractor’s personnel, please comply with traffic control devices, flagging personnel, and/or detour signs.
Travel time through the project area may increase during construction so please adjust your schedule accordingly. Construction may restrict traffic lanes and create congestion. Taking alternate routes is suggested.
If inclement weather or other events cause delays, the work may be rescheduled without further notice.
Original source can be found here.