US Bridges

Or 36 (hwy 229) over Swamp Creek

Fair

Lane County, Oregon · 15.3 E Deadwood Po · Structure no. 04031A229 02819

Built
1960
65 years old
Condition
Fair
inspected May 2024
Type
Channel Beam
Concrete
Length
22 ft
1 main span
Daily traffic
669
2022 count
Owner
State
State Highway Agency

About this bridge

Or 36 (hwy 229) over Swamp Creek is a concrete channel beam carrying Or 36 (hwy 229) over Swamp Creek in Lane County, Oregon. It was built in 1960, so it is 65 years old, older 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 669 vehicles a day, roughly 13% of them trucks, projected to reach 710 by 2042. The structure is 22 ft (6.6 m) long and 35 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesOr 36 (hwy 229)
CrossesSwamp Creek
Location15.3 E Deadwood Po
RouteState Highway 36
CountyLane County
StateOregon
Coordinates44.18192, -123.56335
Functional classRural Major 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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.8 US tons
Inventory rating48.6 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length22 ft (6.6 m)
Longest span22 ft (6.6 m)
Deck width35 ft (10.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic669 (2022)
Projected traffic710 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Or 36 (hwy 229) over Swamp Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Or 36 (hwy 229) over Swamp 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 May 2024.

How much traffic does Or 36 (hwy 229) over Swamp Creek carry?

About 669 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Or 36 (hwy 229) over Swamp Creek?

The structure is 22 ft (6.6 m) long with a longest span of 22 ft (6.6 m) and a deck 35 ft wide.

Who owns Or 36 (hwy 229) over Swamp Creek?

It is owned by the State Highway Agency.