US Bridges

County Road No 689 over Evans Cr./Antioch Rd.

Fair

Jackson County, Oregon · 10.72 Milepost · Structure no. 08723 689 01072

Built
1960
65 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Concrete Continuous
Length
129 ft
3 main spans
Daily traffic
313
2020 count
Owner
County
County Highway Agency

About this bridge

County Road No 689 over Evans Cr./Antioch Rd. is a concrete continuous tee beam carrying County Road No 689 over Evans Cr./Antioch Rd. in Jackson County, Oregon. It was built in 1960, so it is 65 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 313 vehicles a day, roughly 10% of them trucks, projected to reach 368 by 2025. The structure is 129 ft (39.3 m) long and 28 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesCounty Road No 689
CrossesEvans Cr./Antioch Rd.
Location10.72 Milepost
RouteCounty Highway C0689
CountyJackson County
StateOregon
Coordinates42.60732, -122.95002
Functional classRural Minor 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
Deck7 GoodSome minor problems.
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 protection7 GoodSome minor problems.
Last inspectionJuly 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 alignment6: Equal to present minimum criteria
Operating rating40 US tons
Inventory rating24 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length129 ft (39.3 m)
Longest span68 ft (20.6 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic313 (2020)
Projected traffic368 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 689 over Evans Cr./Antioch Rd. built?

It was built in 1960, making it 65 years old in 2025.

What condition is County Road No 689 over Evans Cr./Antioch Rd. 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 County Road No 689 over Evans Cr./Antioch Rd. carry?

About 313 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is County Road No 689 over Evans Cr./Antioch Rd.?

The structure is 129 ft (39.3 m) long with a longest span of 68 ft (20.6 m) and a deck 28 ft wide.

Who owns County Road No 689 over Evans Cr./Antioch Rd.?

It is owned by the County Highway Agency.