US Bridges

Dehlinger Lane over Irrigation Canal

Fair

Klamath County, Oregon · 0001 MI W Hill RD · Structure no. 18C023097500520

Built
1968
57 years old
Condition
Fair
inspected February 2023
Type
Slab
Prestressed Concrete
Length
43 ft
1 main span
Daily traffic
721
2020 count
Owner
County
County Highway Agency

About this bridge

Dehlinger Lane over Irrigation Canal is a prestressed concrete slab carrying Dehlinger Lane over Irrigation Canal in Klamath County, Oregon. It was built in 1968, so it is 57 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 721 vehicles a day, roughly 10% of them trucks, projected to reach 826 by 2025. The structure is 43 ft (13.1 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesDehlinger Lane
CrossesIrrigation Canal
Location0001 MI W Hill RD
RouteCounty Highway 0B320
CountyKlamath County
StateOregon
Coordinates42.11161, -121.66697
Functional classRural Major 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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating30.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic721 (2020)
Projected traffic826 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Dehlinger Lane over Irrigation Canal built?

It was built in 1968, making it 57 years old in 2025.

What condition is Dehlinger Lane over Irrigation Canal 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 February 2023.

How much traffic does Dehlinger Lane over Irrigation Canal carry?

About 721 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Dehlinger Lane over Irrigation Canal?

The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns Dehlinger Lane over Irrigation Canal?

It is owned by the County Highway Agency.