Pamplin Media Group – Beginning of repairs on the road bridge on the north shore of Lake Oswego

The best-case scenario would reopen the span in the spring of 2022 once the structural issues are resolved.

The city still faces many unknowns with the closure of the North Shore Road Bridge, but community members are finally seeing repair activities begin this week.

This week, Lake Oswego entered into two contracts with a design team and a contractor – who will work together simultaneously – for a total of approximately $ 116,000.

“These contracts will likely be changed in the future, depending on the investigation, alternative analysis and construction estimates,” said Erica Rooney, city engineer and director of public works.

During the summer, technical staff discovered structural problems in the retaining wall adjacent to the bridge, which resulted in its closure. The bridge, which crosses Lakewood Bay, will be closed until further notice and people are encouraged to take an alternate route.

North Shore Road is open between Cabana Lane and Lake Shore Road for local access only. The city discovered cracks and movement in the retaining wall during an inspection of the bridge.

Rooney said geotechnical exploration was underway and workers could drill to determine if something is going under the asphalt.

“Kind of just peel back the layers a bit and see what’s underneath and what’s going on,” Rooney said, adding that the surface only shows the tip of the iceberg regarding what could potentially cause the hollow and the bulge of the retaining wall of the bridge.

The best-case scenario, Rooney said, is a small fix, which would allow the bridge to be opened in the spring of 2022. She added that it’s too early to determine a specific timeframe.

The geotechnical report will likely be completed with recommendations in late November or early December, which would give the city a better sense of the direction.

Exploration is an important part of the process, Rooney said, “so we get a feel for what the challenges will be.”

For more information on the closure and frequently asked questions, visit the city’s website.


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