US Bridges

Brown Road over West Fork Salt Creek

Fair

Polk County, Oregon · 0072 SW of State HWY 22 · Structure no. 10051A760100072

Built
1988
37 years old
Condition
Fair
inspected August 2024
Type
Culvert
Steel
Length
27 ft
1 main span
Daily traffic
208
2020 count
Owner
County
County Highway Agency

About this bridge

Brown Road over West Fork Salt Creek is a steel culvert 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 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 208 vehicles a day, roughly 10% of them trucks, projected to reach 297 by 2040. The structure is 27 ft (8.2 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesBrown Road
CrossesWest Fork Salt Creek
Location0072 SW of State HWY 22
RouteCounty Highway 0
StateOregon
Coordinates44.9979, -123.37223
Functional classRural Minor 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.6 US tons
Inventory rating57.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length27 ft (8.2 m)
Longest span25 ft (7.6 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic208 (2020)
Projected traffic297 by 2040
Trucks10%
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 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 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 Brown Road over West Fork Salt Creek carry?

About 208 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Brown Road over West Fork Salt Creek?

The structure is 27 ft (8.2 m) long with a longest span of 25 ft (7.6 m) and a deck 28 ft wide.

Who owns Brown Road over West Fork Salt Creek?

It is owned by the County Highway Agency.