Major Sewer Improvement Effort

Current & Completed Improvement Projects

Interactive Map for Huckleberry Loop Updates

Construction of the Continental Ranch force main augmentation has begun and will impact access to certain parts of the Chuck Huckleberry Loop. Our interactive map helps you track the progress of construction and which segments of the loop remain accessible during construction.
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CRRPS Multi-use Path Revegetation Plan Announced

RWRD, Pima County Regional Flood Control District and the Town of Marana are working closely to restore the Loop linear park pathway and amenities. Restoration through this project will include an improved irrigation system, revegetation with native trees, shrubs, and other desert plants along with improved maintenance access.
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Northwest Outfall Siphon at the Santa Cruz River Rehabilitation

Construction is beginning to replace the existing siphon and inlet and outlet structures located near the 18th hole of the Silverbell Golf Course. This project requires the design and installation of new corrosion-resistant structures with some modifications to the surrounding sewer lines.
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Design Begins on Continental Ranch Regional Pump Station Force Main Augmentation

The Pima County Regional Wastewater Reclamation Department (RWRD) and its Design-Build Team, consisting of Borderland Construction, B&F Contracting, and Westland Resources, will soon begin a project to design and build seven miles of new dual force main sewer in Pima County, northwest Tucson/Marana area 
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Old Nogales Interceptor

This project is designed to increase capacity of the existing Old Nogales Interceptor (ONI) and the Park Avenue Sewer (PAS) in addition to installing new sewer infrastructure to manage the future anticipated flows along the new Aerospace Corridor (ASC) and Hughes Access Road.
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Tucson Boulevard Diversion Structure Rehabilitation - COMPLETED

Pima County Regional Wastewater Reclamation Department, and its contractor Hunter Contracting Company have begun a sewer improvement project to replace an existing Diversion Structure located at the north end of Tucson Boulevard.

Replacing the structure will require diverting/removing the wastewater flows from the sewer pipes that run along Tucson Boulevard between Prince Road and the northern end of Tucson Boulevard, along with several other sewer infrastructure replacements/improvements in the area.
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Mabel Sewer Improvement Project Begins - COMPLETED

Pima County Regional Wastewater Reclamation Department (RWRD) and its contractor Hunter Contracting Company are beginning work on the Mabel Street Sewer Improvement Project located near Pima Community College (PCC) Downtown Campus. This project addresses capacity concerns which were identified in the Speedway Sewer Augmentation Study.
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Twin Peaks-Blue Bonnet Road Gravity Sewer Project - COMPLETED

Pima County Regional Wastewater Reclamation Department (RWRD) and its contractor Achen-Gardner Construction have begun work on the Twin Peaks-Blue Bonnet Road Gravity Sewer Project. The project will provide a gravity sewer line near the Twin Peaks Road/Blue Bonnet Road alignment to serve development in the area. 
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Park Avenue Sewer Augmentation project  - COMPLETED

The Pima County Regional Wastewater Reclamation Department (RWRD) and its contractor Borderland Construction, began construction of the Park Avenue Sewer (PAS) Augmentation project on May 30, 2017. The PAS Augmentation project will upgrade a portion of the existing sewer to address capacity limitations and install a new 10-inch sewer interceptor line along Drexel Road from Park Avenue to First Avenue. This is part of a larger project that will also augment the Old Nogales Interceptor (ONI) from 36th Street to Old Vail Road and construct the new Aerospace Corridor (ASC) sewer along Old Vail Road from Nogales Highway to the Wilmot Prison.
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Southeast Interceptor Sewer Augmentation (SEI) project - COMPLETED

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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The North Rillito Interceptor (NRI) project - COMPLETED

The North Rillito Interceptor (NRI) project was completed in April of 2017. The NRI is a 10-mile, 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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