US Bridges

County RD 790 over Yale Creek

FairPosted for load

Jackson County, Oregon · 0.58 Milepost · Structure no. 29C154790 00058

Built
1959
66 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
62 ft
1 main span
Daily traffic
241
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 790 over Yale Creek is a wood or timber stringer/multi-beam or girder carrying County RD 790 over Yale Creek in Jackson 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 241 vehicles a day, roughly 10% of them trucks, projected to reach 281 by 2025. The structure is 62 ft (19 m) long and 18 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesCounty RD 790
CrossesYale Creek
Location0.58 Milepost
RouteCounty Highway C0790
CountyJackson County
StateOregon
Coordinates42.14239, -122.95937
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating22.8 US tons
Inventory rating17.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadH 15
Structure length62 ft (19 m)
Longest span62 ft (19 m)
Deck width18 ft (5.4 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic241 (2020)
Projected traffic281 by 2025
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$319,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 790 over Yale Creek built?

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

What condition is County RD 790 over Yale Creek 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 June 2023.

How much traffic does County RD 790 over Yale Creek carry?

About 241 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is County RD 790 over Yale Creek?

The structure is 62 ft (19 m) long with a longest span of 62 ft (19 m) and a deck 18 ft wide.

Who owns County RD 790 over Yale Creek?

It is owned by the County Highway Agency.