US Bridges

Agate RD over Little Butte Creek

Fair

Jackson County, Oregon · 1.9 MI North of JCT 867 · Structure no. 16269 515 00274

Built
1976
49 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
298 ft
4 main spans
Daily traffic
2,591
2020 count
Owner
County
County Highway Agency

About this bridge

Agate RD over Little Butte Creek is a prestressed concrete tee beam carrying Agate RD over Little Butte Creek in Jackson County, Oregon. It was built in 1976, so it is 49 years old, younger 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 2,591 vehicles a day, roughly 10% of them trucks, projected to reach 3,015 by 2025. The structure is 298 ft (90.8 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesAgate RD
CrossesLittle Butte Creek
Location1.9 MI North of JCT 867
RouteCounty Highway 0A361
CountyJackson County
StateOregon
Coordinates42.45524, -122.85615
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.
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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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 rating16.8 US tons
Inventory rating12.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length298 ft (90.8 m)
Longest span110 ft (33.5 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,591 (2020)
Projected traffic3,015 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Agate RD over Little Butte Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is Agate RD over Little Butte 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 July 2023.

How much traffic does Agate RD over Little Butte Creek carry?

About 2,591 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Agate RD over Little Butte Creek?

The structure is 298 ft (90.8 m) long with a longest span of 110 ft (33.5 m) and a deck 33 ft wide.

Who owns Agate RD over Little Butte Creek?

It is owned by the County Highway Agency.