ROSE QUARTER UNDERGROUND: LOOKING AT CONDITIONS FROM THE BOTTOM UP

CREWS WILL BEGIN UTILITY MAPPING AND SOIL AND HAZARDOUS MATERIALS SAMPLING THIS WINTER

Utility mapping nighttime work starts in December

Utility mapping and investigation work will begin in December and continue through March. Work will occur on or near I-5, local streets, and the Rose Quarter Transit Center. Crews will collect and record the locations of underground utilities to inform design and construction planning with short-term traffic impacts and little noise.

Here’s what you can expect from the utility mapping work:

Work dates: December through March
Nighttime work: Mon-Sat, 8 p.m. to 5 a.m.
Temporary closures and detours for people walking, biking, rolling, driving, and on transit

Soil and hazardous materials sampling to start in December

Crews are expected to begin collecting soil and other material samples throughout the Rose Quarter area in early December and continue through April. Sampling will occur on and near I-5 at nighttime and along several local streets primarily during the day. The work will ensure that designs are appropriate for local soil conditions and that construction activities are done safely.

What you will see and hear

Soil sampling will be conducted by heavy machinery: a truck-mounted rig for most locations and a track-mounted rig for sites that are difficult to access (shown below). The work involves digging holes approximately 8 to 12 inches wide and up to 120 feet deep. They will be covered while not in use and backfilled within approximately two weeks.

Hazardous materials sampling will involve collecting small amounts of paint and other materials from bridges and other structures to test for hazardous materials. Crews will also dig and then refill small holes by hand to collect samples from highway shoulders.

You may hear some noise while crews work nearby, but activities will be no louder than typical traffic noises.

Here’s what you can expect from the soil and hazardous materials sampling work:

Work dates: December through April
Daytime work: Mon-Fri, 8 a.m. to 5 p.m.
Nighttime work: Mon-Sat, 8 p.m. to 5 a.m.
Temporary closures and detours for people walking, biking, rolling, and driving

Visit ODOT’s Weekly Construction Update and visit TripCheckimage linked to trip check website for details on specific closures and detours – updates will be posted regularly until work is complete.

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Rose Quarter Underground: Looking at conditions from the bottom up

ODOT crews will be in the Rose Quarter area on July 6 and 7 to conduct nighttime work

The work will provide information about the existing pavement condition of local streets to inform the design of the I-5 Rose Quarter Improvement Project.

What you will see and hear

Crews will examine the pavement by drilling holes ranging from 2 feet wide and 3 feet deep to 8 inches wide and 10 feet deep. The holes will be backfilled within 24 hours and covered when not in use. You may hear some noise while crews work nearby, but activities will be no louder than typical traffic noises.

Here’s what you can expect from the pavement exploration work:

  • Work dates: July 6 and 7
  • Nighttime work: Mon-Wed, 9 p.m. to 5 a.m.
  • Temporary closures and detours for people walking, biking, rolling, and driving
  • Partial lane closures
    • N Broadway between NE 2nd Ave and N Wheeler Ave
    • N Vancouver Ave between N Broadway and N Weidler

Visit the ODOT’s Weekly Construction Update and visit TripCheckimage linked to trip check website for details on specific closures and detours – updates will be posted regularly until pavement exploration is complete.

If you have any questions, please call 503-470-3127 or email info@i5RoseQuarter.org.

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Rose Quarter Underground: Looking at conditions from the bottom up

Pavement Exploration Work Starts in May

Crews are planning pavement exploration work in the I-5 Rose Quarter Improvement Project area starting in early May and continuing until late May. The work will provide information about the existing pavement condition of local streets to inform the multimodal design of the I-5 Rose Quarter Improvement Project.

What you will see and hear

The pavement explorations will be conducted by machine or hand and will involve holes ranging from 2 feet wide and 3 feet deep to 8 inches wide and 10 feet deep and will be backfilled within 24 hours and covered when not in use. You may hear some noise while crews work nearby, but activities will be no louder than typical traffic noises.

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Land survey crews are in the project area

Two surveyors conduct work along a sidewalk.

Land survey crews are in the project area verifying the locations of property lines. They may install small markers and/or pavement markings to document their work. This work will occur during the daytime through the end of August. If you have any questions, please call 503-470-3127 or e-mail info@i5RoseQuarter.com.

Soil sampling on I-5 scheduled to start in July

Crews are expected to collect soil samples in the Rose Quarter area starting mid July and continuing until October. The work will ensure the I-5 Rose Quarter Improvement Project can provide information that will help answer questions raised by community members during the Environmental Assessment review about soil stabilities and the highway covers, informs legislative requirements outlined in House Bill 2017, and helps inform future urban design opportunities.