US Bridges

Dinwitty RD C-808 over Jordan CR

Fair

Malheur County, Oregon · 006 S Inter HWY 95 · Structure no. 45C602080800055

Built
1978
47 years old
Condition
Fair
inspected September 2023
Type
Slab
Prestressed Concrete
Length
89 ft
2 main spans
Daily traffic
99
2020 count
Owner
County
County Highway Agency

About this bridge

Dinwitty RD C-808 over Jordan CR is a prestressed concrete slab carrying Dinwitty RD C-808 over Jordan CR in Malheur County, Oregon. It was built in 1978, so it is 47 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 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 99 vehicles a day, roughly 20% of them trucks, projected to reach 109 by 2025. The structure is 89 ft (27.1 m) long and 28 ft wide. If it were closed, the detour would be 9.3 mi (15 km).

CarriesDinwitty RD C-808
CrossesJordan CR
Location006 S Inter HWY 95
RouteCounty Highway C0808
StateOregon
Coordinates42.9745, -117.0853
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length89 ft (27.1 m)
Longest span44 ft (13.4 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99 (2020)
Projected traffic109 by 2025
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.3 mi (15 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 Dinwitty RD C-808 over Jordan CR built?

It was built in 1978, making it 47 years old in 2025.

What condition is Dinwitty RD C-808 over Jordan CR 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 September 2023.

How much traffic does Dinwitty RD C-808 over Jordan CR carry?

About 99 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is Dinwitty RD C-808 over Jordan CR?

The structure is 89 ft (27.1 m) long with a longest span of 44 ft (13.4 m) and a deck 28 ft wide.

Who owns Dinwitty RD C-808 over Jordan CR?

It is owned by the County Highway Agency.