Major Sewer Improvement Effort

Major Sewer Improvement Effort

Current Improvement Projects

22nd Street Sewer Augmentation

Pima County and its contractor, KE&G Construction, Inc., will begin work on the 22nd Street Sewer Augmentation project, which extends from Alvernon Way to Swan Road. This work is necessary because the existing pipe is at or near its maximum flow capacity. This project will install new sewer along 22nd Street from Alvernon Way to Swan Road, increasing sewer volume and improving the lifespan of the sewer infrastructure in the area.
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The North Rillito Interceptor (NRI) project

The North Rillito Interceptor (NRI) project is approximately 10 miles long. The NRI is a large diameter pipeline that transports wastewater from the City's far east side in the Woodland Road and Bear Canyon area, along the north bank of the Tanque Verde Creek and Rillito River, to the Ina Road Wastewater Treatment Facility -- which serves a major portion of northern and eastern Tucson.
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Southeast Interceptor Sewer Augmentation (SEI) project

The Pima County Regional Wastewater Reclamation Department (RWRD) and its contractor, KE&G Construction, Inc., will soon begin constructing the Southeast Interceptor Sewer Augmentation (SEI) project, a 2.6 mile project, which extends south from Simpson to 36th Streets and east along 36th Street between 7th and Euclid Avenues. The SEI project will upgrade a portion of the existing SEI to address capacity limitations between Simpson and 36th Streets. Ultimately wastewater flows from a new Old Nogales Highway interceptor, including developments along the planned Aerospace Corridor, will also be conveyed by the SEI project.
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Construction & Traffic Alerts

OSBORNE AVENUE, 20TH STREET AND LA PAZ
SEI Project: Osborne Avenue Closure Postponed
Mar 15, 2017

OSBORNE AVENUE, 20TH STREET AND LA PAZ
SEI Project: Osborne Avenue Closure
Mar 10, 2017

OSBORNE AVENUE, ARMIJO STREET TO 21ST STREET
SEI Project: Osborne Avenue Closure
Feb 24, 2017

29TH STREET, I-10 TO 12TH AVENUE
SEI Project: Sewer Install at 29th Street
Feb 10, 2017

36TH STREET, 6TH AVENUE TO 4TH AVENUE
SEI Project: 36th Street Waterline Relocation
Jan 6, 2017

36TH STREET, 6TH AVENUE TO 4TH AVENUE
SEI Project: 36th Street Waterline Relocation
Dec 22, 2016

29TH STREET, I-10 TO 11TH AVENUE
SEI Project: Waterline Relocation
Dec 14, 2016

Pima County