US Bridges

Lost Valley Lane over Anthony Creek

Fair

Lane County, Oregon · 010 MI S of Dexter · Structure no. 39C618610700020

Built
1980
45 years old
Condition
Fair
inspected October 2024
Type
Slab
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
506
2020 count
Owner
County
County Highway Agency

About this bridge

Lost Valley Lane over Anthony Creek is a prestressed concrete slab carrying Lost Valley Lane over Anthony Creek in Lane County, Oregon. It was built in 1980, so it is 45 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 506 vehicles a day, roughly 10% of them trucks, projected to reach 561 by 2025. The structure is 68 ft (20.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLost Valley Lane
CrossesAnthony Creek
Location010 MI S of Dexter
RouteCounty Highway C6107
StateOregon
Coordinates43.89909, -122.82332
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
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 rating80 US tons
Inventory rating48 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span67 ft (20.4 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic506 (2020)
Projected traffic561 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Lost Valley Lane over Anthony Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Lost Valley Lane over Anthony Creek 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 October 2024.

How much traffic does Lost Valley Lane over Anthony Creek carry?

About 506 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Lost Valley Lane over Anthony Creek?

The structure is 68 ft (20.7 m) long with a longest span of 67 ft (20.4 m) and a deck 28 ft wide.

Who owns Lost Valley Lane over Anthony Creek?

It is owned by the County Highway Agency.