US Bridges

Holmes Dr. over Tributary of Courtney CR

Fair

Linn County, Oregon · 006 MI E CR 770 · Structure no. 12768 076900055

Built
1965
60 years old
Condition
Fair
inspected May 2023
Type
Slab
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
23
2021 count
Owner
County
County Highway Agency

About this bridge

Holmes Dr. over Tributary of Courtney CR is a prestressed concrete slab carrying Holmes Dr. over Tributary of Courtney CR in Linn County, Oregon. It was built in 1965, so it is 60 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 6 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 23 vehicles a day, projected to reach 31 by 2041. The structure is 38 ft (11.6 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesHolmes Dr.
CrossesTributary of Courtney CR
Location006 MI E CR 770
RouteCounty Highway C0769
CountyLinn County
StateOregon
Coordinates44.36336, -122.97383
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span37 ft (11.3 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23 (2021)
Projected traffic31 by 2041
Trucks0%
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 Holmes Dr. over Tributary of Courtney CR built?

It was built in 1965, making it 60 years old in 2025.

What condition is Holmes Dr. over Tributary of Courtney CR 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 May 2023.

How much traffic does Holmes Dr. over Tributary of Courtney CR carry?

About 23 vehicles per day (2021 count).

How long is Holmes Dr. over Tributary of Courtney CR?

The structure is 38 ft (11.6 m) long with a longest span of 37 ft (11.3 m) and a deck 24 ft wide.

Who owns Holmes Dr. over Tributary of Courtney CR?

It is owned by the County Highway Agency.