US Bridges

Woodbridge C-864 over Alkali CR

Good

Malheur County, Oregon · 0.03 MI E JCT ST HWY 201 · Structure no. 18946 864 00003

Built
2002
23 years old
Condition
Good
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
77 ft
1 main span
Daily traffic
175
2020 count
Owner
County
County Highway Agency

About this bridge

Woodbridge C-864 over Alkali CR is a prestressed concrete tee beam carrying Woodbridge C-864 over Alkali CR in Malheur County, Oregon. It was built in 2002, so it is 23 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 175 vehicles a day, roughly 10% of them trucks, projected to reach 195 by 2025. The structure is 77 ft (23.5 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesWoodbridge C-864
CrossesAlkali CR
Location0.03 MI E JCT ST HWY 201
RouteCounty Highway C0864
StateOregon
Coordinates43.64989, -117.06729
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating42.5 US tons
Inventory rating32.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length77 ft (23.5 m)
Longest span75 ft (23 m)
Deck width31 ft (9.6 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2020)
Projected traffic195 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Woodbridge C-864 over Alkali CR built?

It was built in 2002, making it 23 years old in 2025.

What condition is Woodbridge C-864 over Alkali CR 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 October 2023.

How much traffic does Woodbridge C-864 over Alkali CR carry?

About 175 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Woodbridge C-864 over Alkali CR?

The structure is 77 ft (23.5 m) long with a longest span of 75 ft (23 m) and a deck 31 ft wide.

Who owns Woodbridge C-864 over Alkali CR?

It is owned by the County Highway Agency.