US Bridges

County RD 904 over Wards Cr/Boyd Rd.

Good

Jackson County, Oregon · 0.06 Milepost · Structure no. 29C216A90400006

Built
1989
36 years old
Condition
Good
inspected July 2023
Type
Slab
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
33
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 904 over Wards Cr/Boyd Rd. is a prestressed concrete slab carrying County RD 904 over Wards Cr/Boyd Rd. in Jackson County, Oregon. It was built in 1989, so it is 36 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 33 vehicles a day, roughly 10% of them trucks, projected to reach 38 by 2025. The structure is 34 ft (10.4 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCounty RD 904
CrossesWards Cr/Boyd Rd.
Location0.06 Milepost
RouteCounty Highway C0904
CountyJackson County
StateOregon
Coordinates42.45181, -123.12419
Functional classRural Local

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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
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 rating98 US tons
Inventory rating76.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33 (2020)
Projected traffic38 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 RD 904 over Wards Cr/Boyd Rd. built?

It was built in 1989, making it 36 years old in 2025.

What condition is County RD 904 over Wards Cr/Boyd Rd. 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 July 2023.

How much traffic does County RD 904 over Wards Cr/Boyd Rd. carry?

About 33 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is County RD 904 over Wards Cr/Boyd Rd.?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 24 ft wide.

Who owns County RD 904 over Wards Cr/Boyd Rd.?

It is owned by the County Highway Agency.