US Bridges

County RD 176 over Louis Creek

Fair

Douglas County, Oregon · 11.0 MI E of Myrtle Creek · Structure no. 19C088017600281

Built
1966
59 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
79 ft
3 main spans
Daily traffic
42
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 176 over Louis Creek is a steel stringer/multi-beam or girder carrying County RD 176 over Louis Creek in Douglas County, Oregon. It was built in 1966, so it is 59 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 42 vehicles a day, roughly 1% of them trucks, projected to reach 48 by 2025. The structure is 79 ft (24.1 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCounty RD 176
CrossesLouis Creek
Location11.0 MI E of Myrtle Creek
RouteCounty Highway C0176
StateOregon
Coordinates43.074, -123.1415
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.8 US tons
Inventory rating25.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length79 ft (24.1 m)
Longest span27 ft (8.2 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42 (2020)
Projected traffic48 by 2025
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 176 over Louis Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is County RD 176 over Louis 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 June 2023.

How much traffic does County RD 176 over Louis Creek carry?

About 42 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is County RD 176 over Louis Creek?

The structure is 79 ft (24.1 m) long with a longest span of 27 ft (8.2 m) and a deck 24 ft wide.

Who owns County RD 176 over Louis Creek?

It is owned by the County Highway Agency.