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SW Carolina Pump Mains Project - Phase 2

SW Carolina Pump Mains - Phase 2
June 25, 2014

Project Update

July 28, 2014

In July, Phase 2 of the SW Carolina Mains Project began. Installation of the 24-inch diameter water supply pipeline has been completed on SW Burlingame Drive. Work is now underway on SW Burlingame Terrace.

The contractor has begun work in the traffic island of SW Terwilliger Boulevard and SW Capitol Highway. The construction area is fenced off from the pedestrian pathway. People are urged to stay clear of the construction zone.

Starting August 15 through October 2014, approximately 350 feet of the SW Terwilliger Trail in George Himes Park, from SW Capitol Highway south to SW Terwilliger Boulevard, will be closed temporarily to foot and bike traffic. A safe alternate route adjacent to the park will be established for trail users on SW Terwilliger Boulevard. The trail user detour will be protected by concrete barriers and fencing. Bicyclists will be asked to walk their bike through the pathway.

A description and illustratration of the detour is contained int this brochure.



Construction Schedule 


Please note that all dates are estimated and will be adjusted to accommodate weather, soil and working conditions.

Late June: SW Chestnut Street, SW Burlingame Avenue, SW Burlingame Terrace

  • Contractor Tapani Brothers to place erosion control and conduct exploratory excavation (potholing).

Early July: Intersection of SW Chestnut Street and SW Burlingame Avenue

  • Open trench pipe installation, done in phases, which involves:
    • Saw cut pavement along the width of the trench
    • Remove pavement and existing material
    • Install public water pipe in the street
    • Backfill trench with sand and grave
    • Restore pavement surface temporarily with an asphalt patch
  • All traffic lanes open 7:00-9:00 AM Monday-Friday
  • Traffic restrictions (flaggers) 9:00 AM to 6:00 PM, Monday-Friday
  • Traffic restrictions (flaggers) 7:00 AM to 6:00 PM, Saturdays (if needed)

Mid-July: SW Burlingame Avenue between SW Chestnut Street to SW Burlingame Terrace

  • Open trench pipe installation
  • Local Access Only to traffic
  • Traffic restrictions (flaggers) 7:00 AM to 6:00 PM, Monday-Friday
  • Traffic restrictions (flaggers) 7:00 AM to 6:00 PM, Saturdays (if needed)

Mid-Late July: SW Burlingame Terrace to SW Terwilliger Boulevard

  • Open trench pipe installation
  • Local Access Only to traffic
  • Traffic restrictions (flaggers) 7:00 AM to 6:00 PM, Monday-Friday
  • Traffic restrictions (flaggers) 7:00 AM to 6:00 PM, Saturdays (if needed)

July-August: George Himes Park- Terwilliger Boulevard

  • Park trail detour
  • Underground boring in park and under Capitol Highway to last one month
  • Traffic Restrictions (flaggers) 7:00 AM to 6:00 PM, Monday-Friday
  • Traffic Restrictions (flaggers) 7:00 AM to 6:00 PM, Saturdays (if needed)

August: SW Terwilliger Boulevard to SW Terwilliger Place

  • All traffic lanes open from 3:00 PM to 7:00 PM, Monday-Friday
  • Pedestrian traffic detoured
  • Portable Changeable Message Signs installed

August-November: SW Terwilliger Boulevard between SW Terwiliger Place and SW Capitol Highway Island

  • Open trench pipe installation
  • Local Access only
  • Restrictions (flaggers) 7:00 AM to 6:00 PM Monday-Friday
  • Restrictions (flaggers) 7:00 AM to 6:00 PM Saturdays (if needed)

Tapani Brothers, Inc., the contractor for the SW Carolina Pump Mains Project-Phase 2, will start work on July 1, 2014. Typical work hours will be 7:00 am to 6:00 pm, Monday – Friday, with the option of working on Saturdays. A more detailed work schedule will be posted here once it is available. 

Tapani, Inc. will install 3,400 feet of new 24-inch diameter pipe from the intersection of SW Burlingame Avenue and SW Chestnut Street, north along SW Burlingame Avenue, then turn east on SW Burlingame Terrace down to SW Terwilliger Boulevard. Once on SW Terwilliger Boulevard, the construction will continue north until the traffic island at SW Capitol Highway where new underground vaults will be installed by Portland Water Bureau crews.

Click map to open larger version.

Click to open map While fairly straightforward, the project is expected to be challenging due to its neighborhood impacts. A deep five-foot wide pipe trench will need to be dug through narrow, 10 to 12 foot wide residential streets. Once the project moves onto SW Terwilliger Boulevard, traffic impacts are expected to be significant since this is a major thoroughfare through Southwest Hills communities. One lane going each direction will be closed during this phase of the project.

No travel lanes will be closed on SW Capitol Highway and SW Terwiliger Boulevard during:

  • Run Like Hell- October
  • Toy N Joy Ride- December

On some streets, the work may require a temporary street closure to regular traffic during construction hours, typically from 7:00 am to 6:00 pm, Monday through Friday.  Barricades for “Local Access Only” will be stationed. There will be some temporary inconvenience to street residents, such as equipment noise, dust and no street parking.  Every effort will be made to accommodate residents’ needs during this construction.

Under normal conditions, about 200 feet of pipe can be laid in a single day. Once the pipe work is completed, a crew will return to place permanent asphalt over the trench. Individual properties are not connected to this supply pipeline.  There will be no planned interruption of water service to the area.

One short section of the project near SW Terwilliger Boulevard-- inside George Himes Park-- will involve boring under the pedestrian pathway up to SW Capitol Highway. The work will require a brief detour of the path. A safe detour route for pedestrians and bicyclists to get around this work zone has been identified.

A construction schedule will be posted as soon as it has been determined. This webpage will be updated at least monthly. Postcard updates will also be mailed on a regular basis.

For more information and questions, contact Terry Black at (503) 823-1168. 


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