US Bridges

07 S 04 E 01.01: over Trib to Lost Creek

Good

Clackamas County, Oregon · 7.2 Miles SE of Molalla O · Structure no. 0000000L1439383

Built
1974
51 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
195 ft
3 main spans
Daily traffic
20
2023 count
Owner
Federal
Bureau of Land Management

About this bridge

07 S 04 E 01.01: over Trib to Lost Creek is a prestressed concrete stringer/multi-beam or girder carrying 07 S 04 E 01.01: over Trib to Lost Creek in Clackamas County, Oregon. It was built in 1974, so it is 51 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20 vehicles a day, roughly 10% of them trucks, projected to reach 35 by 2043. The structure is 195 ft (59.4 m) long and 17 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Carries07 S 04 E 01.01:
CrossesTrib to Lost Creek
Location7.2 Miles SE of Molalla O
RouteFederal Lands Road 0
StateOregon
Coordinates44.98642, -122.26881
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating40.7 US tons
Inventory rating31.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length195 ft (59.4 m)
Longest span75 ft (22.9 m)
Deck width17 ft (5.1 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic35 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 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$1,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 07 S 04 E 01.01: over Trib to Lost Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is 07 S 04 E 01.01: over Trib to Lost 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 2023.

How much traffic does 07 S 04 E 01.01: over Trib to Lost Creek carry?

About 20 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 07 S 04 E 01.01: over Trib to Lost Creek?

The structure is 195 ft (59.4 m) long with a longest span of 75 ft (22.9 m) and a deck 17 ft wide.

Who owns 07 S 04 E 01.01: over Trib to Lost Creek?

It is owned by the Bureau of Land Management.