US Bridges

2-10A over Airport Ditch

Fair

Lake County, Oregon · 3.2 South HWY No 140 · Structure no. 37C015210A00321

Built
1976
49 years old
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
29 ft
1 main span
Daily traffic
147
2020 count
Owner
County
County Highway Agency

About this bridge

2-10A over Airport Ditch is a prestressed concrete slab carrying 2-10A over Airport Ditch in Lake County, Oregon. It was built in 1976, so it is 49 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 147 vehicles a day, roughly 2% of them trucks, projected to reach 161 by 2025. The structure is 29 ft (8.8 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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Carries2-10A
CrossesAirport Ditch
Location3.2 South HWY No 140
RouteCounty Highway C210A
CountyLake County
StateOregon
Coordinates42.14993, -120.40566
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
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 rating61.9 US tons
Inventory rating29 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 (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic147 (2020)
Projected traffic161 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 2-10A over Airport Ditch built?

It was built in 1976, making it 49 years old in 2025.

What condition is 2-10A over Airport Ditch 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 July 2024.

How much traffic does 2-10A over Airport Ditch carry?

About 147 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is 2-10A over Airport 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 2-10A over Airport Ditch?

It is owned by the County Highway Agency.