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Storm sewer maintenance

2019-901 Storm Sewer Maintenance Project

The City annually contracts work to maintain the City's storm sewer system. The projects are identified by inspections, life cycle evaluations, citizen inquiries, ongoing erosion problems, flood reduction investigations and/or more permanent construction from emergency repairs of flooding situations, sinkholes or other damage or failures. When feasible and cost effective, the repairs are done using trenchless techniques to avoid open-cut construction and the related traffic impacts. The 2019-925 Nine Mile Creek Washout Repair Project at Harrison/Moir Park was included with this project contract. Additional work sites may be added when urgent emergency repairs are required. Construction of the CIPP liners is expected to start in early September with other sites starting in mid-September. Work at Bush Lake and Nine Mile Creek is dependent on water levels and may be done later in the fall.

 

2019-901 Storm Sewer Maintenance Project includes work at the following sites:

  • Bush Lake at the East Bay - 7501 W. 86th Street/7515 Izaak Walton Road – Remove and replace the existing non-functioning water control/fish barrier structure and inlet/outlet pipes at the East Bay of Bush Lake. The East Bay is part of the water quality protections to Bush Lake, providing additional treatment for stormwater that drains to the lake. The fish barrier prevents carp migration and spawning in the East Bay.

    This work is expected to use the existing pump system to lower Bush Lake to about 832 (feet above sea level), about 1.0-1.5 feet below the Normal Water Level (NWL) of 833.5. The pumps are often used during the spring and other wet periods in compliance with the Bush Lake Management Plan to maintain the lake NWL. Based on current “wetter than normal” climate trends and current pumping activity, Bush Lake is anticipated to return to the NWL in the first six months of 2020. A DNR Public Waters and Appropriations Permits are required.

  • Nine Mile Creek at Harrison and Moir Parks/1701 W. 100th St. – Creekbank stabilization due to spring flood damage and bituminous trail repairs
  • 8700 to 8720 Humboldt Avenue South (east side) – Add two catch basins and storm sewer pipe to improve drainage and improve pavement durability   
  • 9432/9433 Oakland Avenue South – Replace two catch basins and replace corroded steel storm sewer pipe, reconstruct manhole in backyard and street restoration   
  • 8601 Columbus Avenue/8600 Chicago Avenue – Add overflow drain pipe to E. 86th St.

Trenchless Pipe Repairs

Work at these sites involves installing a trenchless relining “pipe within a pipe” that usually does not require excavation, and are completed within a day or two (addresses are approximate location and most work is within the right of way or an easement). The process is called Cured In-Place Pipe (CIPP) and is a common pipe repair method for both sanitary and storm sewers.

  • 9425 10th Avenue South to 9436 12th Avenue Circle
  • 12th Avenue South at 12th Avenue Circle
  • 2514/2531 Jones Place
  • West 96th Street at James Avenue South
  • West 81st Street & Fremont Avenue South
  • West 82nd Street & Fremont Avenue South
  • 9433 Oakland Avenue South to 9432 Park Avenue South

Updates

Throughout the project, updates will be posted on this website.

October 2019

October 17, 2019

2019-901 Storm Sewer Maintenance Project

9433 Oakland Avenue South to 9432 Park Avenue South
320 feet of cured in place storm sewer liner is scheduled to be installed on Friday, October 18 (weather permitting).

9425 10th Avenue South to 9436 12th Avenue South
560 feet of cured in place storm sewer liner is scheduled to be installed Monday, October 21 (weather permitting).

8700 to 8720 Humboldt Avenue South
Bituminous curb installation and turf restoration was completed the week of October 14.

Moir Park north of the Morgan Avenue South terminus 
Streambank restoration and asphalt trail repair on Nine Mile Creek are complete.  A small amount of turf restoration remains and will be completed when conditions allow. Trail closed signs have been removed and the trail has reopened.

10201 Bloomington Ferry Road
Maintenance for a storm sewer manhole and for a storm sewer flared end section was completed the week of October 14.
 

October 11, 2019

2019-901 Storm Sewer Maintenance Project

9425 10th Avenue South to 9436 12th Avenue South
560 feet of cured in place storm sewer liner is scheduled to be installed the week of October 14.

9433 Oakland Avenue South to 9432 Park Avenue South
320 feet of cured in place storm sewer liner is scheduled to be installed the week of October 14.

8700 to 8720 Humboldt Avenue South
Bituminous curb installation is complete. Turf restoration is scheduled for the week of October 14.

Moir Park north of the Morgan Avenue South terminus 
Streambank restoration and asphalt trail repair on Nine Mile Creek are complete.  A small amount of turf restoration remains and will be completed when conditions allow. Trail closed signs have been removed the trail has reopened.

10201 Bloomington Ferry Road
Maintenance for a storm sewer manhole and for a storm sewer flared end section is scheduled for the week of October 14.
 

October 4, 2019

2019-901 Storm Sewer Maintenance Project

9432 Park Avenue South
Site is complete.

9432 Oakland Avenue South
Site is complete.

8601 Columbus Avenue South (on East 86th Street)
Site is complete.

9852 Blaisdell Avenue South
Site is complete.

8700 to 8720 Humboldt Avenue South
Paving, bituminous curb installation and turf restoration are scheduled for next week

Moir Park north of the  Morgan Avenue South terminus 
Streambank restoration on Nine Mile Creek is complete.  Asphalt trail paving along with turf restoration and clean up are scheduled for next week. The trail is currently closed for construction and trail closed signs remain in this area.  Construction work on this site is anticipated to be completed by the end of next week.

September 2019

September 27, 2019

2019-901 Storm Sewer Maintenance Project

9432 Park Avenue South
This week crews completed the turf restoration.

9432 Oakland Avenue South
Curb, asphalt and lawn restoration were completed this week. 

8601 Columbus Avenue South (on East 86th Street)
Sidewalk restoration was completed this week.

9852 Blaisdell Avenue South
Curb, asphalt and lawn restoration were completed this week

8700 to 8720 Humboldt Avenue South
This week crews installed two catch basins, 400 feet of storm sewer pipe, and completed paving.  Turf restoration will be completed next week.    

Moir Park north of the  Morgan Avenue South terminus 
Crews mobilized to begin the Nine Mile Creek streambank restoration and asphalt trail repair.  The trail is currently closed for construction and trail closed signs have been placed in this area. Construction work on this site will continue with paving and final restoration anticipated to be completed by the end of next week.  

September 20, 2019

2019-901 Storm Sewer Maintenance Project

9432 Park Avenue South
Crews completed the reconstruction of a buried storm sewer manhole in the back yard along with associated lawn restoration.

9432 Oakland Avenue South
Crews installed two catch basins and 36 feet of storm sewer pipe.  Curb, asphalt and lawn restoration to follow. 

8601 Columbus Avenue South (on East 86th Street)
Crews installed 30 feet of storm sewer pipe as a storm water outlet for home flood protection.  Lawn restoration was completed.  Sidewalk restoration to follow.  

9852 Blaisdell Avenue South
Crews removed and replaced a failing catch basin.  Curb, asphalt and lawn restoration to follow. 

8700 to 8720 Humboldt Avenue South
Next week crews will be installing two catch basins and 400 feet of storm sewer pipe.  Traffic control will be provided with restoration and paving to follow.

Moir Park north of the  Morgan Avenue South terminus 
Nine Mile Creek streambank restoration and asphalt trail repair will begin next week.  The trail will be closed during construction and trail closed signs will go up in this area on Monday.