US Bridges

FAS A656 over Sandy River

PoorClosed to traffic

Multnomah County, Oregon · 040 MI SE Troutdale · Structure no. 11112 000 01132

Built
1914
111 years old
Condition
Poor
inspected October 2024
Type
Truss - Thru
Steel
Length
278 ft
1 main span
Daily traffic
6,445
2020 count
Owner
County
County Highway Agency

About this bridge

FAS A656 over Sandy River is a steel truss - thru carrying FAS A656 over Sandy River in Multnomah County, Oregon. It was built in 1914, so it is 111 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 6,445 vehicles a day, roughly 10% of them trucks, projected to reach 7,385 by 2025. The structure is 278 ft (84.7 m) long and 20 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesFAS A656
CrossesSandy River
Location040 MI SE Troutdale
RouteCounty Highway 0A656
StateOregon
Coordinates45.5152, -122.36127
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry0: Immediate repair necessary to put back in service
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating15.8 US tons
Inventory rating12.1 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadUnknown
Structure length278 ft (84.7 m)
Longest span200 ft (61 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic6,445 (2020)
Projected traffic7,385 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS A656 over Sandy River built?

It was built in 1914, making it 111 years old in 2025.

What condition is FAS A656 over Sandy River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does FAS A656 over Sandy River carry?

About 6,445 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is FAS A656 over Sandy River?

The structure is 278 ft (84.7 m) long with a longest span of 200 ft (61 m) and a deck 20 ft wide.

Who owns FAS A656 over Sandy River?

It is owned by the County Highway Agency.