US Bridges

Butte Falls Prospt over S Fk Rogue River

Fair

Jackson County, Oregon · 7.0 MI S Prospect · Structure no. 08206 992 01685

Built
1961
64 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
232 ft
3 main spans
Daily traffic
185
2020 count
Owner
County
County Highway Agency

About this bridge

Butte Falls Prospt over S Fk Rogue River is a concrete continuous box beam or girders - multiple carrying Butte Falls Prospt over S Fk Rogue River in Jackson County, Oregon. It was built in 1961, so it is 64 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 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 185 vehicles a day, roughly 10% of them trucks, projected to reach 215 by 2025. The structure is 232 ft (70.7 m) long and 31 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

CarriesButte Falls Prospt
CrossesS Fk Rogue River
Location7.0 MI S Prospect
RouteCounty Highway 0A370
StateOregon
Coordinates42.70363, -122.4494
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating35.4 US tons
Inventory rating27.1 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3 (+3 approach)
Design loadHS 20
Structure length232 ft (70.7 m)
Longest span60 ft (18.3 m)
Deck width31 ft (9.4 m)
Roadway width26 ft (7.9 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 closed49.7 mi (80 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$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Butte Falls Prospt over S Fk Rogue River built?

It was built in 1961, making it 64 years old in 2025.

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

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

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

The structure is 232 ft (70.7 m) long with a longest span of 60 ft (18.3 m) and a deck 31 ft wide.

Who owns Butte Falls Prospt over S Fk Rogue River?

It is owned by the County Highway Agency.