US Bridges

Cason Road No 865 over East Creek

Fair

Tillamook County, Oregon · 6.5 MI E of Beaver · Structure no. 57C58 865 00001

Built
1989
36 years old
Condition
Fair
inspected June 2023
Type
Slab
Prestressed Concrete
Length
66 ft
1 main span
Daily traffic
17
2020 count
Owner
County
County Highway Agency

About this bridge

Cason Road No 865 over East Creek is a prestressed concrete slab carrying Cason Road No 865 over East Creek in Tillamook County, Oregon. It was built in 1989, so it is 36 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 5 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 17 vehicles a day, projected to reach 22 by 2025. The structure is 66 ft (20.1 m) long and 12 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCason Road No 865
CrossesEast Creek
Location6.5 MI E of Beaver
RouteCounty Highway C0865
CountyTillamook County
StateOregon
Coordinates45.28286, -123.69448
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating80 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span64 ft (19.5 m)
Deck width12 ft (3.7 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17 (2020)
Projected traffic22 by 2025
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$338,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Cason Road No 865 over East Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Cason Road No 865 over East 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 Cason Road No 865 over East Creek carry?

About 17 vehicles per day (2020 count).

How long is Cason Road No 865 over East Creek?

The structure is 66 ft (20.1 m) long with a longest span of 64 ft (19.5 m) and a deck 12 ft wide.

Who owns Cason Road No 865 over East Creek?

It is owned by the County Highway Agency.