US Bridges

Red Bridge RD over Little Oak Creek

Fair

Linn County, Oregon · 0190 Miles North of HWY34 · Structure no. 12771 034200190

Built
1959
66 years old
Condition
Fair
inspected June 2023
Type
Channel Beam
Concrete
Length
30 ft
2 main spans
Daily traffic
149
2021 count
Owner
County
County Highway Agency

About this bridge

Red Bridge RD over Little Oak Creek is a concrete channel beam carrying Red Bridge RD over Little Oak Creek in Linn County, Oregon. It was built in 1959, so it is 66 years old, older 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 149 vehicles a day, roughly 10% of them trucks, projected to reach 206 by 2041. The structure is 30 ft (9.1 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRed Bridge RD
CrossesLittle Oak Creek
Location0190 Miles North of HWY34
RouteCounty Highway C0342
StateOregon
Coordinates44.57253, -122.98789
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
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 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 rating47.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadHS 15
Structure length30 ft (9.1 m)
Longest span15 ft (4.6 m)
Deck width26 ft (7.8 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic149 (2021)
Projected traffic206 by 2041
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 Red Bridge RD over Little Oak Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is Red Bridge RD over Little Oak 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 Red Bridge RD over Little Oak Creek carry?

About 149 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Red Bridge RD over Little Oak Creek?

The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m) and a deck 26 ft wide.

Who owns Red Bridge RD over Little Oak Creek?

It is owned by the County Highway Agency.