| Interstate 405 Preservation Project |
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| Project Information |
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WHAT'S NEW
**This project was completed in 2010.**
Click here for a project newsletter sent out in summer 2009.
LOCATION AND OVERVIEW
This project paved Interstate 405 from the Marquam Bridge, mile post 0.38, to the Fremont Bridge, mile post 2.59 (the bridges themselves are not part of this paving project). Rutted pavement was filled to surface grade and then paved to improve the safety of the highway. The concrete median area that is currently open was backfilled with rock and capped with concrete. Pavement grinding occurred under four over-crossings of the freeway to maintain federal clearance requirements. New lighting and signs along the I-405 corridor were installed as part of this project.
PROJECT BENEFITS
The pavement of I-405 in the project area was rutted in all lanes, causing safety hazards. Traffic volumes on I-405 range from 83,000 to 125,000 vehicles per day, making it one of the busiest sections of freeway in the Portland metro area. The freeway serves as a major interstate freight and commuter route. It also is a primary detour route when Interstate 5 through the city is affected by maintenance work or crash-related congestion. New pavement has improved safety, reduced wear on vehicles, improved signing and lighting, and provided a smooth surface for auto and truck traffic.
TRAFFIC IMPACTS
The high traffic volume on I-405 required that lanes be open during weekday daytime hours. Closing lanes would cause significant backups on I-405, I-5 and local streets. Therefore, four weekends of full directional (north or south) closures were required for the grinding and overlay paving work. Ramp paving primarily took place during the weekend closures. However, weeknight lane and ramp closures also were used during the duration of the project to complete lighting, signing and other work. Several tunnels also were closed during nighttime hours so work crews could update lighting.
Here is the schedule of weekend closures of I-405 that took place in summer 2009:
August 15-16
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All I-405 SOUTH lanes and ramps will be closed
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DONE! |
August 22-23
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All I-405 NORTH lanes and ramps will be closed
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DONE! |
August 29-30
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All I-405 SOUTH lanes and ramps will be closed
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DONE! |
September 12-13
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All I-405 NORTH lanes and ramps will be closed
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DONE! |
NOISE IMPACTS
The city of Portland granted ODOT a noise permit for work on the I-405 paving project. The noise permit limited work that can take place during nighttime hours. Work taking place at night includes paving operations, which typically move along the highway at 5mph.
Click here for a project fact sheet.
I-405 in downtown Portland
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Portland vicinity including I-405
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| Project Schedule |
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Work on the I-405 paving project began in June 2009 and was completed in 2010.
During the summer of 2009, there were 4 weekend single-directional closures of I-405. Northbound I-405 was completely closed on two weekends during this period; southbound I-405 was completely closed during two weekends during this period.
Three tunnels were closed during nighttime work hours for approximately a week during the project. They were the Taylor Street and Everett Street on-ramps to southbound I-405, and the U.S. 26 (Sunset Highway) to northbound I-405 ramp. The tunnels received new lighting during the closures.
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| ODOT Contact |
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Mike Mason, Community Affairs Coordinator: 503.731.8246 or Michael.W.Mason@odot.state.or.us
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