US Bridges

East Bridge ST over Salmon River

GoodPosted for load

Clackamas County, Oregon · 0.05 MI from Welches RD · Structure no. 19593 000 00005

Built
2004
21 years old
Condition
Good
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
123 ft
1 main span
Daily traffic
97
2020 count
Owner
County
County Highway Agency

About this bridge

East Bridge ST over Salmon River is a prestressed concrete tee beam carrying East Bridge ST over Salmon River in Clackamas County, Oregon. It was built in 2004, so it is 21 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for other load-capacity restriction.

It carries about 97 vehicles a day, roughly 10% of them trucks, projected to reach 107 by 2025. The structure is 123 ft (37.5 m) long and 22 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesEast Bridge ST
CrossesSalmon River
Location0.05 MI from Welches RD
RouteCounty Highway C1440
StateOregon
Coordinates45.32067, -121.95458
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length123 ft (37.5 m)
Longest span120 ft (36.6 m)
Deck width22 ft (6.6 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic97 (2020)
Projected traffic107 by 2025
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was East Bridge ST over Salmon River built?

It was built in 2004, making it 21 years old in 2025.

What condition is East Bridge ST over Salmon River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does East Bridge ST over Salmon River carry?

About 97 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is East Bridge ST over Salmon River?

The structure is 123 ft (37.5 m) long with a longest span of 120 ft (36.6 m) and a deck 22 ft wide.

Who owns East Bridge ST over Salmon River?

It is owned by the County Highway Agency.