US Bridges

Bit C-1101 over Willow CR

Fair

Malheur County, Oregon · 0005 MI E Inter HWY 26 · Structure no. 45C116110100005

Built
1981
44 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
132
2020 count
Owner
County
County Highway Agency

About this bridge

Bit C-1101 over Willow CR is a steel stringer/multi-beam or girder carrying Bit C-1101 over Willow CR in Malheur County, Oregon. It was built in 1981, so it is 44 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 132 vehicles a day, roughly 20% of them trucks, projected to reach 153 by 2025. The structure is 25 ft (7.6 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBit C-1101
CrossesWillow CR
Location0005 MI E Inter HWY 26
RouteCounty Highway C1101
StateOregon
Coordinates44.24044, -117.50856
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.5 US tons
Inventory rating74.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic132 (2020)
Projected traffic153 by 2025
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Bit C-1101 over Willow CR built?

It was built in 1981, making it 44 years old in 2025.

What condition is Bit C-1101 over Willow 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 Bit C-1101 over Willow CR carry?

About 132 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is Bit C-1101 over Willow CR?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 24 ft wide.

Who owns Bit C-1101 over Willow CR?

It is owned by the County Highway Agency.