US Bridges

29 S 03 W 11.00: over South Myrtle Creek

Fair

Douglas County, Oregon · 0.03 Miles SE of County R · Structure no. 0000000L1439306

Built
1970
55 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
79 ft
1 main span
Daily traffic
20
2024 count
Owner
Federal
Bureau of Land Management

About this bridge

29 S 03 W 11.00: over South Myrtle Creek is a prestressed concrete stringer/multi-beam or girder carrying 29 S 03 W 11.00: over South Myrtle Creek in Douglas County, Oregon. It was built in 1970, so it is 55 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 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 35 by 2044. The structure is 79 ft (24.1 m) long and 16 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Carries29 S 03 W 11.00:
CrossesSouth Myrtle Creek
Location0.03 Miles SE of County R
RouteFederal Lands Road 0
StateOregon
Coordinates43.06667, -123.03778
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating34.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length79 ft (24.1 m)
Longest span76 ft (23.2 m)
Deck width16 ft (5 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic35 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Land Management
Maintained byBureau of Land Management
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost$4,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 29 S 03 W 11.00: over South Myrtle Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is 29 S 03 W 11.00: over South Myrtle 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 March 2024.

How much traffic does 29 S 03 W 11.00: over South Myrtle Creek carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 29 S 03 W 11.00: over South Myrtle Creek?

The structure is 79 ft (24.1 m) long with a longest span of 76 ft (23.2 m) and a deck 16 ft wide.

Who owns 29 S 03 W 11.00: over South Myrtle Creek?

It is owned by the Bureau of Land Management.