US Bridges

Moss Creek Road over Moss Creek

Fair

Tillamook County, Oregon · 0045 UP Moss CR RD · Structure no. 57C17 564 00045

Built
1973
52 years old
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
84
2020 count
Owner
County
County Highway Agency

About this bridge

Moss Creek Road over Moss Creek is a prestressed concrete slab carrying Moss Creek Road over Moss Creek in Tillamook County, Oregon. It was built in 1973, so it is 52 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 84 vehicles a day, roughly 15% of them trucks, projected to reach 99 by 2025. 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).

CarriesMoss Creek Road
CrossesMoss Creek
Location0045 UP Moss CR RD
RouteCounty Highway C0564
StateOregon
Coordinates45.57037, -123.87053
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 protection5 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 evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating98 US tons
Inventory rating65 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span24 ft (7.3 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic84 (2020)
Projected traffic99 by 2025
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 Moss Creek Road over Moss Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Moss Creek Road over Moss 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 Moss Creek Road over Moss Creek carry?

About 84 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Moss Creek Road over Moss Creek?

The structure is 27 ft (8.2 m) long with a longest span of 24 ft (7.3 m) and a deck 28 ft wide.

Who owns Moss Creek Road over Moss Creek?

It is owned by the County Highway Agency.