US Bridges

Loper Lane over Trail Creek

Fair

Jackson County, Oregon · 0.02 Milepost · Structure no. 16619 822 00002

Built
1984
41 years old
Condition
Fair
inspected June 2023
Type
Slab
Prestressed Concrete
Length
124 ft
2 main spans
Daily traffic
132
2020 count
Owner
County
County Highway Agency

About this bridge

Loper Lane over Trail Creek is a prestressed concrete slab carrying Loper Lane over Trail Creek in Jackson County, Oregon. It was built in 1984, so it is 41 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 5 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 132 vehicles a day, roughly 10% of them trucks, projected to reach 152 by 2025. The structure is 124 ft (37.8 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLoper Lane
CrossesTrail Creek
Location0.02 Milepost
RouteCounty Highway C0822
StateOregon
Coordinates42.66611, -122.83344
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40 US tons
Inventory rating31.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length124 ft (37.8 m)
Longest span60 ft (18.3 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic132 (2020)
Projected traffic152 by 2025
Trucks10%
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

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 Loper Lane over Trail Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Loper Lane over Trail 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 June 2023.

How much traffic does Loper Lane over Trail Creek carry?

About 132 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Loper Lane over Trail Creek?

The structure is 124 ft (37.8 m) long with a longest span of 60 ft (18.3 m) and a deck 24 ft wide.

Who owns Loper Lane over Trail Creek?

It is owned by the County Highway Agency.