US Bridges

Trask River Road over Green Creek

Good

Tillamook County, Oregon · MP 0.82 · Structure no. 24320 073000082

Built
2023
2 years old
Condition
Good
inspected September 2023
Type
Slab
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
154
2010 count
Owner
County
County Highway Agency

About this bridge

Trask River Road over Green Creek is a prestressed concrete slab carrying Trask River Road over Green Creek in Tillamook County, Oregon. It was built in 2023, so it is 2 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 154 vehicles a day, roughly 15% of them trucks, projected to reach 106 by 2030. The structure is 48 ft (14.6 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesTrask River Road
CrossesGreen Creek
LocationMP 0.82
RouteCounty Highway C0730
StateOregon
Coordinates45.44111, -123.76075
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.7 US tons
Inventory rating50.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length48 ft (14.6 m)
Longest span48 ft (14.6 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic154 (2010)
Projected traffic106 by 2030
Trucks15%
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 Trask River Road over Green Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is Trask River Road over Green 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 September 2023.

How much traffic does Trask River Road over Green Creek carry?

About 154 vehicles per day (2010 count), of which roughly 15% are trucks.

How long is Trask River Road over Green Creek?

The structure is 48 ft (14.6 m) long with a longest span of 48 ft (14.6 m) and a deck 32 ft wide.

Who owns Trask River Road over Green Creek?

It is owned by the County Highway Agency.