US Bridges

Brownsboro RD over Kanutchan Creek

Fair

Jackson County, Oregon · 1.2 MI West of JCT 270 · Structure no. 29C270979 00477

Built
1979
46 years old
Condition
Fair
inspected June 2023
Type
Slab
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
1,212
2020 count
Owner
County
County Highway Agency

About this bridge

Brownsboro RD over Kanutchan Creek is a prestressed concrete slab carrying Brownsboro RD over Kanutchan Creek in Jackson County, Oregon. It was built in 1979, so it is 46 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 1,212 vehicles a day, roughly 10% of them trucks, projected to reach 1,417 by 2025. The structure is 50 ft (15.2 m) long and 32 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesBrownsboro RD
CrossesKanutchan Creek
Location1.2 MI West of JCT 270
RouteCounty Highway 0A367
CountyJackson County
StateOregon
Coordinates42.47627, -122.73659
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82 US tons
Inventory rating49.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span40 ft (12.2 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,212 (2020)
Projected traffic1,417 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$333,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Brownsboro RD over Kanutchan Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Brownsboro RD over Kanutchan 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 June 2023.

How much traffic does Brownsboro RD over Kanutchan Creek carry?

About 1,212 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Brownsboro RD over Kanutchan Creek?

The structure is 50 ft (15.2 m) long with a longest span of 40 ft (12.2 m) and a deck 32 ft wide.

Who owns Brownsboro RD over Kanutchan Creek?

It is owned by the County Highway Agency.