US Bridges

Brown Road over West Fork Salt Creek

Good

Polk County, Oregon · 0013 SW of State HWY 22 · Structure no. 10050A760100013

Built
1988
37 years old
Condition
Good
inspected August 2024
Type
Slab
Prestressed Concrete
Length
39 ft
1 main span
Daily traffic
261
2020 count
Owner
County
County Highway Agency

About this bridge

Brown Road over West Fork Salt Creek is a prestressed concrete slab carrying Brown Road over West Fork Salt Creek in Polk County, Oregon. It was built in 1988, so it is 37 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.

It carries about 261 vehicles a day, roughly 10% of them trucks, projected to reach 371 by 2040. The structure is 39 ft (11.9 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBrown Road
CrossesWest Fork Salt Creek
Location0013 SW of State HWY 22
RouteCounty Highway 0
StateOregon
Coordinates44.99838, -123.36045
Functional classRural Minor Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
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 rating64.3 US tons
Inventory rating49.6 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span38 ft (11.6 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic261 (2020)
Projected traffic371 by 2040
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 Brown Road over West Fork Salt Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Brown Road over West Fork Salt Creek 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 August 2024.

How much traffic does Brown Road over West Fork Salt Creek carry?

About 261 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Brown Road over West Fork Salt Creek?

The structure is 39 ft (11.9 m) long with a longest span of 38 ft (11.6 m) and a deck 28 ft wide.

Who owns Brown Road over West Fork Salt Creek?

It is owned by the County Highway Agency.