by: CLACKAMAS COUNTY - The bridge piling is tilting towards Oregon City and downriverThe Clackamas County Sheriff's Office is strongly advising boaters to avoid passing under the Old Trolley Bridge down-stream from High Rocks on the Clackamas River.

The bridge is located about one mile up-river from the confluence with the Willamette River. Early this morning construction crews working near the Old Trolley Bridge on the Clackamas River observed the bridge piling actually tilting towards Oregon City and downriver. Within the space of a few hours, the top of the bridge piling had moved approximately four feet, deputies said. Clackamas County engineers who were called in to assess the bridge advised the shift is significant and alarming.

Deputies said there is a valid concern about the overall stability of the bridge. The Sheriff's Office Marine Patrol is strongly recommending boaters avoid passing under this bridge. Boat launches are located above the area at Riverside Park and below the area at Meldrum Bar park for boaters to use. The bridge is owned by Union Pacific, which is aware of the issue and has engineers evaluating the situation.

This bridge is an abandoned remnant of a trolley line operated by the now-defunct Portland Traction Company. In the early 20th century, it connected Oregon City with Portland.

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