US Bridges

Or 203 (hwy 340) over Basche Irrigation Ditch

Good

Baker County, Oregon · 060 MI S Union CO Line · Structure no. 02897A340 02892

Built
1972
53 years old
Condition
Good
inspected September 2023
Type
Slab
Prestressed Concrete
Length
29 ft
1 main span
Daily traffic
232
2022 count
Owner
State
State Highway Agency

About this bridge

Or 203 (hwy 340) over Basche Irrigation Ditch is a prestressed concrete slab carrying Or 203 (hwy 340) over Basche Irrigation Ditch in Baker County, Oregon. It was built in 1972, so it is 53 years old, older 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 232 vehicles a day, roughly 20% of them trucks, projected to reach 240 by 2042. The structure is 29 ft (8.8 m) long and 32 ft wide. If it were closed, the detour would be 80.2 mi (129 km).

Location

Open in Google Maps
CarriesOr 203 (hwy 340)
CrossesBasche Irrigation Ditch
Location060 MI S Union CO Line
RouteState Highway 203
CountyBaker County
StateOregon
Coordinates44.9127, -117.6726
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.5 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span28 ft (8.5 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic232 (2022)
Projected traffic240 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed80.2 mi (129 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Or 203 (hwy 340) over Basche Irrigation Ditch built?

It was built in 1972, making it 53 years old in 2025.

What condition is Or 203 (hwy 340) over Basche Irrigation Ditch 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 September 2023.

How much traffic does Or 203 (hwy 340) over Basche Irrigation Ditch carry?

About 232 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Or 203 (hwy 340) over Basche Irrigation Ditch?

The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.5 m) and a deck 32 ft wide.

Who owns Or 203 (hwy 340) over Basche Irrigation Ditch?

It is owned by the State Highway Agency.