US Bridges

C45-MOON Creek RD over John Day R(moon CR Br)

FairPosted for load

Grant County, Oregon · 0.3 MI NE JCT US 26 · Structure no. 23C451045 00030

Built
1924
101 years old, rebuilt 1968
Condition
Fair
inspected July 2024
Type
Truss - Thru
Steel
Length
102 ft
1 main span
Daily traffic
29
2020 count
Owner
County
County Highway Agency

About this bridge

C45-MOON Creek RD over John Day R(moon CR Br) is a steel truss - thru carrying C45-MOON Creek RD over John Day R(moon CR Br) in Grant County, Oregon. It was built in 1924 and reconstructed in 1968, so it is 101 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. Its operating status is: posted for load restriction.

It carries about 29 vehicles a day, roughly 10% of them trucks, projected to reach 34 by 2025. The structure is 102 ft (31.1 m) long and 19 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesC45-MOON Creek RD
CrossesJohn Day R(moon CR Br)
Location0.3 MI NE JCT US 26
RouteCounty Highway C0045
StateOregon
Coordinates44.41733, -119.22408
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
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 rating9.3 US tons
Inventory rating7.2 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 15
Structure length102 ft (31.1 m)
Longest span100 ft (30.5 m)
Deck width19 ft (5.9 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2020)
Projected traffic34 by 2025
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C45-MOON Creek RD over John Day R(moon CR Br) built?

It was built in 1924, making it 101 years old in 2025. It was reconstructed in 1968.

What condition is C45-MOON Creek RD over John Day R(moon CR Br) 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 July 2024.

How much traffic does C45-MOON Creek RD over John Day R(moon CR Br) carry?

About 29 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is C45-MOON Creek RD over John Day R(moon CR Br)?

The structure is 102 ft (31.1 m) long with a longest span of 100 ft (30.5 m) and a deck 19 ft wide.

Who owns C45-MOON Creek RD over John Day R(moon CR Br)?

It is owned by the County Highway Agency.