US Bridges

Kirk Dr. over Warren CR

FairPosted for load

Linn County, Oregon · 001 MI NW CR 742 · Structure no. 11926 074300011

Built
1965
60 years old
Condition
Fair
inspected May 2023
Type
Slab
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
36
2021 count
Owner
County
County Highway Agency

About this bridge

Kirk Dr. over Warren CR is a prestressed concrete slab carrying Kirk Dr. over Warren 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. Its operating status is: posted for load restriction.

It carries about 36 vehicles a day, projected to reach 52 by 2041. The structure is 27 ft (8.2 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesKirk Dr.
CrossesWarren CR
Location001 MI NW CR 742
RouteCounty Highway C0743
CountyLinn County
StateOregon
Coordinates44.40027, -122.92135
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
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 alignment8: Equal to present desirable criteria
Operating rating23.3 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span26 ft (7.9 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (2021)
Projected traffic52 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 Kirk Dr. over Warren CR built?

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

What condition is Kirk Dr. over Warren 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 Kirk Dr. over Warren CR carry?

About 36 vehicles per day (2021 count).

How long is Kirk Dr. over Warren CR?

The structure is 27 ft (8.2 m) long with a longest span of 26 ft (7.9 m) and a deck 25 ft wide.

Who owns Kirk Dr. over Warren CR?

It is owned by the County Highway Agency.