US Bridges

County Road No 867 over Antelope Creek

Good

Jackson County, Oregon · 12.97 Milepost · Structure no. 18092 867 01297

Built
1999
26 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
350
2020 count
Owner
County
County Highway Agency

About this bridge

County Road No 867 over Antelope Creek is a prestressed concrete box beam or girders - single or spread carrying County Road No 867 over Antelope Creek in Jackson County, Oregon. It was built in 1999, so it is 26 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 350 vehicles a day, roughly 10% of them trucks, projected to reach 410 by 2025. The structure is 68 ft (20.7 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCounty Road No 867
CrossesAntelope Creek
Location12.97 Milepost
RouteCounty Highway C0867
StateOregon
Coordinates42.34981, -122.6869
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
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; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39.2 US tons
Inventory rating30.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length68 ft (20.7 m)
Longest span68 ft (20.7 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2020)
Projected traffic410 by 2025
Trucks10%
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 Road No 867 over Antelope Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is County Road No 867 over Antelope Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does County Road No 867 over Antelope Creek carry?

About 350 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is County Road No 867 over Antelope Creek?

The structure is 68 ft (20.7 m) long with a longest span of 68 ft (20.7 m) and a deck 34 ft wide.

Who owns County Road No 867 over Antelope Creek?

It is owned by the County Highway Agency.