SE 62nd and Morrison Sewer Repair Project - Pipe Bursting
February 28, 2014
CONTACT: Joe Annett, 503-823-2934
To receive emailed project updates, email Joseph.Annett@portlandoregon.gov with “SE 62nd” in the subject line
Environmental Services has begun construction on a project to replace and repair about 2,200 feet of aging public sewer pipe that the city installed in 1913. The project will protect the public and the environment by reducing the possibility of costly breaks, leaks, blockages and sewage releases to homes, businesses and streets.
Your home is on or near a street where Environmental Services will use the pipe-bursting method of sewer repair (see map). Here is what to expect during pipe-bursting:
- Excavate existing lateral pipes that connect individual properties to the main sewer line in the street; connect laterals to the main sewer with a temporary pipe, shore the excavation and cover with a steel plate to allow traffic to use the street. This step takes a week or more per block.
- Dig an insertion shaft about 20 feet long and four to six feet wide; weld sections of black plastic pipe the day before pipe-bursting to make a single, block-long pipe.
- Workers leave this long pipe section at the curb overnight, and it will block driveways.
- Install bursting equipment in the insertion shaft and lay new pipe behind the bursting equipment. This could involve blocking one or more intersections for up to several hours.
- Equipment pushes a bursting head through the existing pipe, breaks it apart and pulls new pipe into place behind the equipment. This usually takes a few hours per block.
- When the new main sewer is in place, crews make temporary lateral connections to the new pipe, making the sewer fully operational.
- Over the next few days, crews make permanent lateral connections and replace the pipe to the curb, backfill the lateral trenches, and do temporary paving.
Construction will NOT interrupt your water service. On the day of the actual pipe-burst, the new pipe installation will temporarily block connections to the public sewer and limit sewer service for a few hours. Although it’s inconvenient, most sewer customers are able to avoid using their water during the process. If a temporary sewer service interruption will be a hardship for you because of a medical condition, home business or other reasons, we will work with you to accommodate your needs.
What to Expect During Construction
- To minimize damage to trees in the work zone, certified Portland Parks Urban Forestry arborists will trim tree branches to a minimum height of 14 feet.
- There will be noise, vibration, dust, traffic congestion, temporary parking loss, lane reductions, street closures in the construction zone, and disruption to normal neighborhood activity.
- Work hours will be 7:00 a.m. to 6:00 p.m. Monday through Friday. The contractor may schedule work during the same hours on Saturdays.
- Some streets will close to through traffic during work hours, but the contractor will maintain local access. You may experience delays getting to your home or business.
- Parking will be prohibited in work zones during work hours.
- Construction should not interrupt other utilities.
- A city construction inspector will be on-site during work hours. The on-site inspector may be able to help you with any immediate needs. Equipment and material will be secured on the street after work hours.
- Please contact me if you have concerns such as maintaining driveway access, business operations, medical deliveries, etc.