US Bridges

County RD 15 over Middle Fork John Day R

FairPosted for load

Grant County, Oregon · 106 MI W JCT US RTE 395 · Structure no. 08481 015 01060

Built
1959
66 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
130 ft
1 main span
Daily traffic
99
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 15 over Middle Fork John Day R is a steel stringer/multi-beam or girder carrying County RD 15 over Middle Fork John Day R in Grant County, Oregon. It was built in 1959, so it is 66 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 99 vehicles a day, roughly 1% of them trucks, projected to reach 119 by 2025. The structure is 130 ft (39.6 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCounty RD 15
CrossesMiddle Fork John Day R
Location106 MI W JCT US RTE 395
RouteCounty Highway 0B540
CountyGrant County
StateOregon
Coordinates44.88589, -119.14659
Functional classRural Major Collector

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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating14.7 US tons
Inventory rating11.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadH 20
Structure length130 ft (39.6 m)
Longest span57 ft (17.4 m)
Deck width30 ft (9.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99 (2020)
Projected traffic119 by 2025
Trucks1%
Lanes on structure2
Traffic directionTwo-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 15 over Middle Fork John Day R built?

It was built in 1959, making it 66 years old in 2025.

What condition is County RD 15 over Middle Fork John Day R 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 October 2024.

How much traffic does County RD 15 over Middle Fork John Day R carry?

About 99 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is County RD 15 over Middle Fork John Day R?

The structure is 130 ft (39.6 m) long with a longest span of 57 ft (17.4 m) and a deck 30 ft wide.

Who owns County RD 15 over Middle Fork John Day R?

It is owned by the County Highway Agency.