US Bridges

Big Creek Road over Sams Creek

Fair

Lane County, Oregon · 10.73 M North Fork Road · Structure no. 39C579508201073

Built
1981
44 years old
Condition
Fair
inspected September 2023
Type
Slab
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
55
2020 count
Owner
County
County Highway Agency

About this bridge

Big Creek Road over Sams Creek is a prestressed concrete slab carrying Big Creek Road over Sams Creek in Lane County, Oregon. It was built in 1981, so it is 44 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 55 vehicles a day, roughly 1% of them trucks, projected to reach 65 by 2025. The structure is 50 ft (15.2 m) long and 16 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesBig Creek Road
CrossesSams Creek
Location10.73 M North Fork Road
RouteCounty Highway C5082
CountyLane County
StateOregon
Coordinates44.15447, -123.9501
Functional classRural Minor Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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 rating38.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55 (2020)
Projected traffic65 by 2025
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 Big Creek Road over Sams Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Big Creek Road over Sams 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 September 2023.

How much traffic does Big Creek Road over Sams Creek carry?

About 55 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Big Creek Road over Sams Creek?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 16 ft wide.

Who owns Big Creek Road over Sams Creek?

It is owned by the County Highway Agency.