US Bridges

Susbauer Road over Dairy Creek

Fair

Washington County, Oregon · 004 N Long Road · Structure no. 671310A15200170

Built
1981
44 years old
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
119 ft
3 main spans
Daily traffic
6,184
2020 count
Owner
County
County Highway Agency

About this bridge

Susbauer Road over Dairy Creek is a prestressed concrete slab carrying Susbauer Road over Dairy Creek in Washington County, Oregon. It was built in 1981, so it is 44 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 6,184 vehicles a day, roughly 10% of them trucks, projected to reach 6,934 by 2025. The structure is 119 ft (36.3 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSusbauer Road
CrossesDairy Creek
Location004 N Long Road
RouteCounty Highway CA133
CountyWashington County
StateOregon
Coordinates45.53958, -123.04178
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating59 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length119 ft (36.3 m)
Longest span39 ft (11.9 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,184 (2020)
Projected traffic6,934 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Susbauer Road over Dairy Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Susbauer Road over Dairy Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Susbauer Road over Dairy Creek carry?

About 6,184 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Susbauer Road over Dairy Creek?

The structure is 119 ft (36.3 m) long with a longest span of 39 ft (11.9 m) and a deck 32 ft wide.

Who owns Susbauer Road over Dairy Creek?

It is owned by the County Highway Agency.