US Bridges

Garoutte RD over Mosby Creek

Fair

Lane County, Oregon · 050MI SE Cottage Grove · Structure no. 39C223255500001

Built
1981
44 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
112 ft
1 main span
Daily traffic
535
2020 count
Owner
County
County Highway Agency

About this bridge

Garoutte RD over Mosby Creek is a prestressed concrete tee beam carrying Garoutte RD over Mosby 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 535 vehicles a day, roughly 5% of them trucks, projected to reach 625 by 2025. The structure is 112 ft (34.1 m) long and 32 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesGaroutte RD
CrossesMosby Creek
Location050MI SE Cottage Grove
RouteCounty Highway C2555
StateOregon
Coordinates43.76595, -122.99406
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 protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating14.7 US tons
Inventory rating11.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length112 ft (34.1 m)
Longest span110 ft (33.5 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic535 (2020)
Projected traffic625 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Garoutte RD over Mosby Creek built?

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

What condition is Garoutte RD over Mosby 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 2024.

How much traffic does Garoutte RD over Mosby Creek carry?

About 535 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Garoutte RD over Mosby Creek?

The structure is 112 ft (34.1 m) long with a longest span of 110 ft (33.5 m) and a deck 32 ft wide.

Who owns Garoutte RD over Mosby Creek?

It is owned by the County Highway Agency.