Major Sewer Improvement Effort

Construction UpdatesConstruction Updates & Traffic Alerts

Sewer Bypass and Upcoming 18th Street Closure

18th Street
November 2, 2017

November 6 – November 22 the contractor will install the sewer bypass system. The temporary bypass pipes will be placed above ground, except where it crosses a road or driveway. In that circumstance, a small trench will be excavated, and the piping will be buried. The bypass pump will be located in the westbound lane of 18th Street, just east of Osborn Avenue.

o The pumping operation will begin on November 27.

o During the bypass installation, motorists and area residents should watch for intermittent lane closures in the area of work.
View details: pdf


Euclid Avenue & 36th Street intersection
October 17, 2017

On Tuesday, October 17, the contractor will begin work to install 30 to 36-inch diameter pipe across the Euclid Avenue/36th Street intersection. They will also begin installing large underground sewer structures and manholes in the Euclid Avenue/36th Street intersection. This work will require a complete closure of the Euclid Avenue/36th Street intersection. Work is scheduled to be completed by early November 2017.
View details: pdf | map

Intersection work

36th Street/Euclid Avenue
September 29, 2017

On Monday, October 2, the contractor will begin work to remove a cover slab on a large underground sewer structure in the Euclid Avenue/36th Street intersection. This work will facilitate an upcoming bypass operation. Work is scheduled to be completed by early November 2017.

• Southbound Euclid Avenue traffic will be detoured around the work area.

• Northbound turn movements from east and westbound 36th Street will not be permitted at Euclid Avenue.

• Northbound Euclid Avenue will be directed eastbound at the 36th Street intersection. (Westbound turn movements from this location will be permitted when 36th Street, west of the UPRR, is open to traffic.)

• Motorists should use Park Avenue if possible.

On Monday, October 2, the contractor will begin installing 36-inch sewer line along 36th Street, between the UPRR and Euclid Avenue. This portion of roadway will be open to local traffic only. Access to businesses will be maintained.
View details: pdf

Southeast Interceptor Rehabilitation

36th Street/4th Avenue
September 15, 2017

North and southbound travel on 4th Avenue at 36th Street intersection open.

36th Street from 4th Avenue to to the UPRR is closed - local traffic only
View details: pdf

SEI Project: UPDATED 36th Street Traffic Alert

36th Street/4th Avenue
September 1, 2017

The contractor has begun installing temporary bypass piping along the eastside of Euclid Avenue, between 33rd and 39th Streets.  Trenching is necessary when installation crosses driveways and side streets. Local Traffic Only will be permitted during the daytime work on Euclid Avenue south of 36th Street, but it re-opens at night.  Motorists should use Park Avenue if possible.  On August 28, the contractor will begin trenching within the intersection of Euclid Avenue and 36th Street.  To maintain one travel-lane in each direction, motorists will be shifted around the work area. Turn movements and one through-lane in each direction will be maintained at the Euclid Avenue/36th Street intersection.  These restrictions will be in place from 4:30 a.m. Monday, August 28 through 3 p.m. Friday, September 1, 2017, and Tuesday, September 5 through Wednesday, September 6, 2017. Traffic control will be taken down over the weekend.
View details: pdf

If you have any questions or concerns related to the project please call (520) 622-2527 or (520) 724-3400.

Pima County