The section of Harrison Avenue the city of Gardiner closed Wednesday after discovering that part of an embankment had eroded will remain closed to through traffic for around a month.

Tuesday night’s rainstorm caused part of the embankment on the Cobbosseecontee Stream side of the road, where the city is replacing a sewer line, to slide down, leading the city to close the south end of Harrison Avenue on Wednesday morning between Andrews and Ash streets.

City officials reassessed the situation Thursday morning and decided to keep the portion of the road closed for the remainder of the sewer project, probably up to a month, said Doug Clark, director of wastewater for the city.

“Just to be on the safe side, we decided to keep it closed, so no through traffic will be allowed,” he said.

The city is replacing a 900-foot steel sewer interceptor pipe that runs along the stream. Clark said the contractor doing the project will excavate and install the pipe on the north end before returning to the eroding section when the ground freezes more. After installing the new pipe, the contractor will be able to add back fill and stabilize the embankment, he said.

The closed portion of Harrison Avenue starts in the New Mill area, off Route 9, and includes around a dozen houses on the west side of the street.

Clark said the homes are not in any danger as a result of the erosion.

Paul Koenig — 621-5663

[email protected]

Twitter: @paul_koenig

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