68th Street Bridge Reconstruction
Construction work to replace the 68th Street Bridge will take place Jan. 1 – April 30, 2019 in conjunction with the SRP dry-up of the Arizona Canal. 68th Street will be closed from Indian School Road to Lafayette Boulevard for the majority of this time period.
The bridge will not be fixed, but entirely replaced. Unfortunately, upon inspection it was determined that the rest of the bridge is subject to the same type of deterioration that has occurred to the center spans of the bridge so it will be safer and more cost effective to replace the entire bridge.
All work will be performed by FNF Construction, Inc. under contract to the City of Scottsdale. A tentative construction schedule is as follows:January 2 – 13:
In early January work will begin to prepare for the removal of the existing bridge structure in advance of the canal dry up. Crews will work to remove the roadway on either side of the canal. During this phase work will take place from 7 a.m. – 5 p.m.January 11 - February 10
The dry up of the Arizona Canal will begin January 11 and the construction crews will begin to work 24 hours a day to take full advantage of the access to the structure the canal dry up provides. The existing bridge structure will be removed and the new bridge built during this time.February 11 – April 30
From mid-February to April 30 work will continue with the completion of construction activity on either of the new bridge with minor intersection improvements, sewerline upgrades and restriping work. During this time the new bridge needs to cure and even though the it looks complete, 68th Street will remain closed for the majority of this time. Crews will return to regular construction hours of 7 a.m. – 5 p.m.
A routine inspection of the 68th Street bridge over the Arizona Canal, just north of Indian School Road, discovered deterioration that will require substantial repair. Given the nature and extent of the deterioration, the city closed the two inside lanes of traffic on the bridge in mid-January.
A detailed inspection of the bridge took place in February and determined that the entire bridge structure and substructure needs to be replaced. The City hired an engineering firm to complete the design work for the bridge reconstruction in March 2018.
The inside two lanes of the bridge will remain closed until January when 68th St. will be closed to all traffic just north of Indian School Rd. Scottsdale’s Traffic Management Center has adjusted signal timing in the area to accommodate the lane closures.
All bridges in Scottsdale’s street network are inspected every two years to ensure they are safe for vehicles and pedestrians.
Frequently Asked Questions
A routine inspection of the 68th Street bridge discovered deterioration of the underside of the bridge that will require substantial repair.
Given the nature and extent of the deterioration, the city closed the two inside lanes of traffic on the bridge in mid-January. The most extensive damage to the bridge is under the center lanes. The 68th Street bridge has gone through an extensive inspection and it has be determined that the outside lanes are currently safe for travel.
The bridge will not be fixed, but entirely replaced. Unfortunately, the rest of the bridge is subject to the same type of deterioration that has occurred to the center spans of the bridge so it will be safer and more cost effective to replace the entire bridge.
The new bridge and the substructure to hold it up must be designed then constructed. Additionally, because this is an emergency repair, funding for this project had to be identified then approved by City Council.
Unfortunately, it has been determined that the center two lanes are not safe for travel. Work has been occurring, but you can’t always see it. Over the last month, a detailed inspection of the bridge has taken place including concrete sampling and lab analysis of the concrete makeup. The inside two lanes of the bridge will remain closed for several months while design work is being finished.
No, since there are two travel lanes open over the bridge, 68th Street will remain open to all traffic during the design phase. Once construction begins, traffic control patterns may change.
Scottsdale’s Traffic Management Center has adjusted signal timing in the area to accommodate the lane closures. During peak travel hours green lights are longer to allow the same amount of cars to pass through the intersection using the reduced number of travel lanes.
In general, a detour route is only posted if there is a full closure on a roadway. Currently the lanes on the bridge are only restricted, not fully closed, so we would not post a detour route. During the construction phase a detour route may be required.
Budget: $4.65 M
Sponsoring Division: Streets
Funding Source: Transportation Sales Tax
Project Location: 68th Street over the Arizona Canal just north of Indian School Road