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Twin Falls’ Streets Department will begin replacing deteriorating culverts next week, which will cause some road and alleyway closures while contractors complete the one-month project, said City spokesman Josh Palmer.

“The City is replacing the culverts, which channel water underneath roadways, alleys and sidewalks, with more stable concrete lateral crossings after three culverts collapsed last year. City street workers immediately placed steel covers—also known as trench plates—over the broken crossings as a temporary solution until water could be shut off to the underlying water channels,” Palmer said.

The first section to be replaced will be a segment between Harrison Street and Tyler Street on the north side of Addison Avenue. This will require the closure of the westbound lane on Addison Avenue between Harrison and Van Buren, so City street workers can fix the alley approach.

The other two culverts are located south of Filer Avenue at Bracken Street, as well as the adjacent alley.

Both have deteriorated to the point of failure and are currently trench plated, Palmer said.

Twin Falls has contracted with PMF, Inc., a local contractor, to replace the old culverts at Bracken Street.

Workers are expected to begin construction on Feb. 18 and complete the culvert replacements in late-March.

Palmer said the City will begin the projects as soon as possible, so that the Twin Falls Canal Company can reintroduce water to the underlying water channels—that process generally takes place during early April.

Intersecting alleys will be temporarily closed during repairs. PSI Environmental Systems, which utilizes alleyways for garbage pick-up, as well as other utility services have been notified of the closures, said Palmer.

(photo: courtesy Josh Palmer, City of Twin Falls)