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Interstate 5 (Pacific Highway)

August 1 - 8, 2015*

*Schedules are subject to change due to weather and site conditions.

Interstate 5 - Southwest Capitol Highway to North Lombard Street - Paving and Signs

Project Description: The project will take place on Interstate 5 from Southwest Capitol Highway to North Lombard Street and will include:

    • Sign Replacement: Work is under way to begin replacing many of the green highway signs on I-5 from Southwest Corbett Avenue to North Lombard Street and on both decks of the Fremont Bridge (I-405). Existing signs will be updated to meet federal standards; new signs will feature more reflective materials and a less cluttered design, making them easier to read.
    • Paving: Starting this spring/summer*, about seven miles of I-5 between Southwest Capitol Highway and the Marquam Bridge will be repaved. The pavement, last replaced in 2004, is deteriorating and needs to be repaired. Transitions to on- and off-ramps will also be repaved and improvements will be made to several bridges.

*Construction is scheduled to be complete by the end of 2015, but work is weather dependent and dates are subject to change.

Traffic Impacts: Expect nighttime single and double lane, shoulder and ramp closures for sign replacement, structure installation and paving. ODOT is partnering with law enforcement for extra presence in the highway construction zone.

    • NORTHBOUND CLOSURE of I-5 between the Marquam Bridge and I-84 on Friday night, August 7. I-5 travelers will be detoured via I-405.  Eastbound I-84 travelers will take I-5 southbound to I-84 eastbound.  On-ramp closures to I-5 will begin at 9 p.m. and the mainline will be closed at 10 p.m.​
    • Nighttime I-5 northbound shoulder and double lane closures (both left lanes and right lanes, but not at the same time) at milepoint 300.69 for new structure installation.  This is located just south of exit 300 to I-84 and OMSI; exit 300 to I-84 will remain open.
    • Nighttime I-5 southbound and northbound shoulder and double lane closures (between mileposts 298 and 306, from Southwest Corbett Avenue to North Lombard Avenue) from 8 p.m. to 6 a.m. for structure installation and sign replacement.
    • Nighttime I-5 northbound, double lane closures (between Southwest Capitol Highway and the Marquam Bridge) from Monday, July 21 to Friday, July 31 for paving, starting at 8 p.m. and reopening by 5:30 a.m. (8 a.m. on Saturday morning). Expect on- and off-ramp closures throughout the project area. 
    • Nighttime I-5 northbound, double lane closures (between Southwest Capitol Highway and the Marquam Bridge) from Monday, August 5 to Saturday, August 10 for paving, starting at 8 p.m. and reopening by 5:30 a.m. (8 a.m. on Saturday morning). Expect on- and off-ramp closures throughout the project area.
    • Nighttime I-5 southbound periodic ramp and lane closures (between the Marquam Bridge and 26th overcrossing) for bridge work, ramp paving and storm sewer work.

​​​​​​​​​​​For more information: www.i5PavingandSigns.orgProject Hotline (503) 731-4663, or Night Construction Hotline (503) 646-0231. 

Interstate 5 at Southwest Barbur and Southwest 26th - Stormwater Management

Project Description: Environmental Services and the Oregon Department of Transportation are constructing a series of terraced stormwater​ rain gardens and pipes to collect sediments and pollutants before the water enters Tryon Creek. 

Traffic Impacts: No traffic impacts. 

For more information: www.portlandoregon.gov/bes/article/480340​

Interstate 5 at Oregon Highway 99W - Southwest Barbur Boulevard

Project Description: Construction is underway on a seismic retrofit project for five bridges along the Interstate 5 corridor between Portland’s South Waterfront district and the Tualatin River. Retrofitting the state’s older bridges to meet modern seismic specifications will help ensure I-5 would not be immobilized in the event Oregon experiences a powerful earthquake.

Traffic Impacts: Expect periodic nighttime lane closures on the I-5 northbound truck lane at Southwest Barbur Boulevard from 8 p.m. to 5 a.m., as well as the I-5 southbound right lane (the ramp to Southwest Barbur Boulevard will remain open). There will also be periodic traffic stops on the northbound on-ramp from Southwest Barbur Boulevard to I-5. Drivers should be aware of construction signage and lane changes since this project will include periodic nighttime lane closures on I-5 from 8 p.m. to 5 a.m. Monday through Friday.

For more information: www.I5Seismic.org​

Interstate 5 at Southwest Lower Boones Ferry Road

Project Description: Construction is underway on a seismic retrofit project for five bridges along the Interstate 5 corridor between Portland’s South Waterfront district and the Tualatin River. Retrofitting the state’s older bridges to meet modern seismic specifications will help ensure I-5 would not be immobilized in the event Oregon experiences a powerful earthquake.

Traffic Impacts: Expect nighttime lane closures on Lower Boones Ferry Road in both directions Monday to Thursday from 8 p.m. to 6 a.m.

For more information: www.I5Seismic.org​

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