US Bridges

Golf Course Road over Tualatin River Overflow

Fair

Washington County, Oregon · 010 MI S HWY 8 · Structure no. 17997 119000100

Built
1997
28 years old
Condition
Fair
inspected September 2024
Type
Slab
Prestressed Concrete
Length
131 ft
2 main spans
Daily traffic
3,824
2020 count
Owner
County
County Highway Agency

About this bridge

Golf Course Road over Tualatin River Overflow is a prestressed concrete slab carrying Golf Course Road over Tualatin River Overflow in Washington County, Oregon. It was built in 1997, so it is 28 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 5 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 3,824 vehicles a day, roughly 5% of them trucks, projected to reach 3,844 by 2025. The structure is 131 ft (39.9 m) long and 40 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesGolf Course Road
CrossesTualatin River Overflow
Location010 MI S HWY 8
RouteCounty Highway A0678
CountyWashington County
StateOregon
Coordinates45.50757, -123.06042
Functional classUrban Minor Arterial

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.3 US tons
Inventory rating34.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadH 20
Structure length131 ft (39.9 m)
Longest span65 ft (19.8 m)
Deck width40 ft (12.2 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,824 (2020)
Projected traffic3,844 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Golf Course Road over Tualatin River Overflow built?

It was built in 1997, making it 28 years old in 2025.

What condition is Golf Course Road over Tualatin River Overflow 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 September 2024.

How much traffic does Golf Course Road over Tualatin River Overflow carry?

About 3,824 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Golf Course Road over Tualatin River Overflow?

The structure is 131 ft (39.9 m) long with a longest span of 65 ft (19.8 m) and a deck 40 ft wide.

Who owns Golf Course Road over Tualatin River Overflow?

It is owned by the County Highway Agency.