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Patton Bridge to Close to All Traffic Tuesday, May 4

Patton Bridge repair work continues this week with single-lane closures and traffic alternating in each direction. The bridge will close completely in both directions Tuesday to remove construction equipment.

The complete closure will be to all vehicles, pedestrians, and bicyclists from 6 a.m. until 8 p.m., May 4.  When the bridge reopens on May 4 at 8 p.m. All lanes will be open for all traffic at 8:00 p.m. when the bridge reopens. There will be possible intermittent single lane closures to wrap up any final work on the bridge.

Detour: All trucks, including local delivery trucks, are strongly advised against using Lake Holm Road at Auburn-Black Diamond Road. This is a narrow and windy road. Truck drivers unfamiliar with this area have been known to get stuck and are unable to back down or move forward. Use Auburn-Black Diamond Road and turn right on 148th Avenue SE.

" data-medium-file="https://auburnexaminer.com/wp-content/uploads/2021/05/Pattondetourmap-300x232.jpg" data-large-file="https://auburnexaminer.com/wp-content/uploads/2021/05/Pattondetourmap.jpg" loading="lazy" class="size-full wp-image-30323" src="https://auburnexaminer.com/wp-content/uploads/2021/05/Pattondetourmap.jpg" alt="A detour map for the Patton Bridge deck repair" width="590" height="456" srcset="https://auburnexaminer.com/wp-content/uploads/2021/05/Pattondetourmap.jpg 590w, https://auburnexaminer.com/wp-content/uploads/2021/05/Pattondetourmap-300x232.jpg 300w" sizes="(max-width: 590px) 100vw, 590px" />
source: King County road service

From King County Road Services:

Project Location

The project is on SE Green Valley Road located over the Green River, about 1.5 miles southeast of the intersection of SE Auburn-Black Diamond Road, and can be reached from State Route 18 by exiting onto SE Auburn Black Diamond Road and traveling east to SE Green Valley Road.

Why King County is Repairing this Bridge

Inspections found deteriorating concrete in the support structure at the ends of the center span. There are currently weight limits on this bridge. Weight limits will remain in place when the work is complete.

Project schedule

Contractors started work in mid-February, have completed two round-the-clock closures to pour new concrete reinforcements. The final round-the-clock closure is scheduled for May 4 to remove all scaffolding.

No traffic will be allowed on the bridge during the full, around-the-clock closures. Drivers must use the signed detour along SE Auburn Black-Diamond Road and 218th Avenue SE when the bridge is closed to vehicle traffic.

We anticipate all construction to be complete by 8 p.m., May 4.

Project budget and timeline

The estimated construction budget is $450,000.

The work is scheduled to begin mid-February at the earliest with full-bridge closures tentatively mid-March though it is weather-dependent. King County will post signs at the bridge site about two weeks prior to the actual full closure.

The bridge has two travel lanes. During most of the construction, the contractor will keep one lane open to traffic at all times. The bridge closed at the start, in the middle, and will close again at the end, May 4 to remove scaffolding and construction equipment.

The above information was provided by King County Road Service.

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