US Bridges

6th Street over D Canal

Fair

Klamath County, Oregon · MP 0.32 · Structure no. 23858 000 00032

Built
2000
25 years old
Condition
Fair
inspected February 2023
Type
Slab
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
180
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

6th Street over D Canal is a prestressed concrete slab carrying 6th Street over D Canal in Klamath County, Oregon. It was built in 2000, so it is 25 years old, younger 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 180 vehicles a day, roughly 5% of them trucks, projected to reach 190 by 2037. The structure is 28 ft (8.5 m) long and 45 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Carries6th Street
CrossesD Canal
LocationMP 0.32
RouteCity Street 39
StateOregon
Coordinates42.01424, -121.40546
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
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating50.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width45 ft (13.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2017)
Projected traffic190 by 2037
Trucks5%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 6th Street over D Canal built?

It was built in 2000, making it 25 years old in 2025.

What condition is 6th Street over D 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 6th Street over D Canal carry?

About 180 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is 6th Street over D Canal?

The structure is 28 ft (8.5 m) long with a longest span of 28 ft (8.5 m) and a deck 45 ft wide.

Who owns 6th Street over D Canal?

It is owned by the City or Municipal Highway Agency.