US Bridges

15 S 06 W 31.00: over Swartz Creek

Good

Lane County, Oregon · 4 MI NE of OR36 at Blachl · Structure no. 0000000L2133205

Built
2022
3 years old
Condition
Good
inspected February 2024
Type
Slab
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
10
2024 count
Owner
Federal
Bureau of Land Management

About this bridge

15 S 06 W 31.00: over Swartz Creek is a prestressed concrete slab carrying 15 S 06 W 31.00: over Swartz Creek in Lane County, Oregon. It was built in 2022, so it is 3 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, roughly 10% of them trucks, projected to reach 15 by 2044. The structure is 31 ft (9.4 m) long and 17 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Carries15 S 06 W 31.00:
CrossesSwartz Creek
Location4 MI NE of OR36 at Blachl
RouteFederal Lands Road 0
StateOregon
Coordinates44.22839, -123.47078
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length31 ft (9.4 m)
Longest span25 ft (7.6 m)
Deck width17 ft (5.3 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic15 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Land Management
Maintained byBureau of Land Management
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 15 S 06 W 31.00: over Swartz Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is 15 S 06 W 31.00: over Swartz Creek 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 February 2024.

How much traffic does 15 S 06 W 31.00: over Swartz Creek carry?

About 10 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 15 S 06 W 31.00: over Swartz Creek?

The structure is 31 ft (9.4 m) long with a longest span of 25 ft (7.6 m) and a deck 17 ft wide.

Who owns 15 S 06 W 31.00: over Swartz Creek?

It is owned by the Bureau of Land Management.