The city of Portland says work to connect utilities to a new sewage facility will lead to closures on I-295 for eight weeks.

The city says it’s part of ongoing work on the Back Cove South Storage Facility. They’ll be connecting utilities within the intersection of Marginal Way and Franklin Street to new storage tanks under the Preble Street playing fields.

As a result, there will be an eight week period of alternating closures to the on and off ramps of the I-295 Exit 7 interchange starting March 15th. The city will place variable message boards with the latest ramp closure information, and are urging residents to pay attention to the boards to be aware of any closures.

The city says it’s part of a sewer separation project aimed at preventing combined sewer overflows into Back Cove.