US Bridges

Road over Three Rivers

Fair

Tillamook County, Oregon · .01 MI from JCT or HWY 22 · Structure no. 061201000001099

Built
1953
72 years old
Condition
Fair
inspected June 2024
Type
Frame
Concrete Continuous
Length
100 ft
3 main spans
Daily traffic
10
1996 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over Three Rivers is a concrete continuous frame carrying Road over Three Rivers in Tillamook County, Oregon. It was built in 1953, so it is 72 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 10 vehicles a day, projected to reach 15 by 2045. The structure is 100 ft (30.5 m) long and 16 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

Open in Google Maps
CarriesRoad
CrossesThree Rivers
Location.01 MI from JCT or HWY 22
RouteFederal Lands Road 15000
CountyTillamook County
StateOregon
Coordinates45.21333, -123.84917
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43 US tons
Inventory rating30 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length100 ft (30.5 m)
Longest span60 ft (18.3 m)
Deck width16 ft (5 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1996)
Projected traffic15 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over Three Rivers built?

It was built in 1953, making it 72 years old in 2025.

What condition is Road over Three Rivers 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 2024.

How much traffic does Road over Three Rivers carry?

About 10 vehicles per day (1996 count).

How long is Road over Three Rivers?

The structure is 100 ft (30.5 m) long with a longest span of 60 ft (18.3 m) and a deck 16 ft wide.

Who owns Road over Three Rivers?

It is owned by the U.S. Forest Service.