US Bridges

Fircreek Lane over Greasy Creek

Fair

Benton County, Oregon · 1.0 SW HWY 34/20 Jct. · Structure no. 18382 000 00000

Built
1996
29 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
87 ft
1 main span
Daily traffic
115
2020 count
Owner
County
County Highway Agency

About this bridge

Fircreek Lane over Greasy Creek is a prestressed concrete tee beam carrying Fircreek Lane over Greasy Creek in Benton County, Oregon. It was built in 1996, so it is 29 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 115 vehicles a day, roughly 5% of them trucks, projected to reach 225 by 2040. The structure is 87 ft (26.5 m) long and 21 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesFircreek Lane
CrossesGreasy Creek
Location1.0 SW HWY 34/20 Jct.
RouteCounty Highway 0
CountyBenton County
StateOregon
Coordinates44.53253, -123.39535
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.3 US tons
Inventory rating22.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length87 ft (26.5 m)
Longest span86 ft (26.2 m)
Deck width21 ft (6.3 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic115 (2020)
Projected traffic225 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-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 Fircreek Lane over Greasy Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Fircreek Lane over Greasy 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 July 2024.

How much traffic does Fircreek Lane over Greasy Creek carry?

About 115 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Fircreek Lane over Greasy Creek?

The structure is 87 ft (26.5 m) long with a longest span of 86 ft (26.2 m) and a deck 21 ft wide.

Who owns Fircreek Lane over Greasy Creek?

It is owned by the County Highway Agency.