US Bridges

Butte Falls Prospt over Middle Fk Rogue River

Fair

Jackson County, Oregon · 4.0 MI SE Prospect · Structure no. 09453 992 01984

Built
1966
59 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
253 ft
3 main spans
Daily traffic
185
2020 count
Owner
County
County Highway Agency

About this bridge

Butte Falls Prospt over Middle Fk Rogue River is a prestressed concrete stringer/multi-beam or girder carrying Butte Falls Prospt over Middle Fk Rogue River in Jackson County, Oregon. It was built in 1966, so it is 59 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.

It carries about 185 vehicles a day, roughly 10% of them trucks, projected to reach 215 by 2025. The structure is 253 ft (77.1 m) long and 34 ft wide. If it were closed, the detour would be 17.4 mi (28 km).

CarriesButte Falls Prospt
CrossesMiddle Fk Rogue River
Location4.0 MI SE Prospect
RouteCounty Highway 0A370
StateOregon
Coordinates42.73361, -122.43164
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.9 US tons
Inventory rating21.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length253 ft (77.1 m)
Longest span100 ft (30.5 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic185 (2020)
Projected traffic215 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed17.4 mi (28 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 Butte Falls Prospt over Middle Fk Rogue River built?

It was built in 1966, making it 59 years old in 2025.

What condition is Butte Falls Prospt over Middle Fk Rogue River 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 Butte Falls Prospt over Middle Fk Rogue River carry?

About 185 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Butte Falls Prospt over Middle Fk Rogue River?

The structure is 253 ft (77.1 m) long with a longest span of 100 ft (30.5 m) and a deck 34 ft wide.

Who owns Butte Falls Prospt over Middle Fk Rogue River?

It is owned by the County Highway Agency.