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The City of Portland, Oregon

Portland Bureau of Transportation

Phone: 503-823-5185

Fax: 503-823-7576

1120 SW Fifth Ave, Suite 800, Portland, OR 97204

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SE 122nd Ave Bridge Over Johnson Creek

Project Update - January 8, 2019

Thank you for your patience during the duration of this project. We are entering the final stages of the project and nearing the opening of the new bridge, but there is still a lot of work to do. You will notice that the bridge now has rails and a new retaining wall has been built at the entrance to Leach Botanical Garden. In the coming weeks, a new water pipe will be suspended from the underside of the bridge and connected into the water system on both approaches. The new waterline will be tested for performance and to ensure that it is free of contaminants before the final connections can be made by the Portland Water Bureau. The contractor will be adding sidewalks and large reinforced concrete slabs near the bridge to support the final pieces of concrete rail at all 4 corners. 

Issues with the water pipe work have slowed the project down a bit in the past few weeks. We were originally hoping to have the bridge open for your use at this time, it is more likely that the bridge will not be open until the middle or end of February 2019, if there are no further delays. Again, we thank you for your patience over the past several years. We are almost there.


 Deck Rebar Facing North

Bridge Girders In Place


Park Access (Starting July 2nd)

The main Leach Botanical Garden Parking lot is closed through the duration of the project. Please plan on accessing the Garden from the north side of the creek, off of SE Claybourne Street. Click here for temporary park access map and detour routes.


Bridge Closure (Starting July 16th)

THE BRIDGE IS NOW  CLOSED TO ALL USERS, INCLUDING BICYCLISTS AND PEDESTRIANS. Bicycles and pedestrians will need to use either SE 112th Avenue or SE Deardorf to cross over Johnson Creek to gain access to all points north.


Project Background

The bridge was damaged by heavy rains during winter storms and will remain closed to motor vehicles until a replacement bridge can be built, expected in 2019. The bridge sidewalk currently remains open for biking and walking.

“Public safety is our top priority and in this case to keep the public safe we need to limit access to the bridge until it can be replaced,” Portland Transportation Director Leah Treat said. “We understand a closure of this magnitude will be an inconvenience for the traveling public, and we will work to minimize the inconvenience in the coming weeks and during the construction period. We have made this decision after carefully considering the need for public safety. We’re thankful for funding recently approved by the state.”

Since January, PBOT crews have worked to stabilize the bridge site to limit the risk of further deterioration. In March, a committee of the Oregon Department of Transportation and local agencies allocated $2.5 million in Federal Highway Bridge Funds for replacement of the 122nd Avenue Bridge. The federal funds require a local match of $300,000, which PBOT will provide using general transportation revenue, which is mainly funded by parking revenue and the City’s share of state gas tax.

Travelers in the area should use alternate routes to travel between SE Foster Road and SE Flavel Street.

Local access will be maintained south of SE Foster Road and North of SE Flavel for residents and businesses. Access to the Leach Botanical Garden, a major destination in the area that is located next to the bridge, will also be maintained.


“Spring begins our busy season at Leach Botanical Garden, with weddings and events as well as casual visitors coming to enjoy the peace and beauty,” said David Porter, executive director of Leach Garden Friends, a non-profit that operates the garden for Portland Parks & Recreation. “We want people to know that our parking lot is open as normal and can be reached from the south via Flavel Street.”


The garden’s parking lot provides 32 spaces for visitors and is available south of the bridge. Visitors can walk across the bridge to reach the garden’s main entrance, just north of the bridge. A map with directions to the garden and the parking lot is available at the garden’s web site:


PBOT crews have posted two detour routes during the bridge closure.



If you have additional questions, please contact Cameron Glasgow @ (503) 823-9726.

Alternate Route 1, SE 110th/112th:

Southbound traffic is detoured west at SE Foster Rd to southbound on SE 110th Dr/SE 112th Ave to SE Flavel St and eastbound back to SE 122nd Ave. Northbound traffic will be detoured at SE Flavel St west to SE 112th Ave/SE 110th Dr, then east on SE Foster Rd, back to SE 122nd Ave. 

Alternate Route 2, SE 134th/Deardorff Road:

Southbound traffic is detoured east at SE Foster Rd to southbound on SE 134th Ave/SE Deardorff Road to SE Flavel St and westbound back to SE 122nd Ave. Northbound traffic will be detoured at SE Flavel St east to Deardorff Road/ SE 134th Ave and west on SE Foster Rd, back to SE 122nd Ave.

The traveling public is advised to travel cautiously, observe the closure signage and directions by reader boards and detour signage.


SE 122nd Ave Bridge Over Johnson Creek Map

Photo Gallery

SE 122nd Ave Bridge Over Johnson Creek Photography


Floodwater impacting the bridge.