US Bridges

County RD 178 over Little Sand Creek

Fair

Douglas County, Oregon · 4.3 MI N of Drain · Structure no. 19C101017800113

Built
1997
28 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
183
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 178 over Little Sand Creek is a steel stringer/multi-beam or girder carrying County RD 178 over Little Sand Creek in Douglas County, Oregon. It was built in 1997, so it is 28 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 183 vehicles a day, roughly 5% of them trucks, projected to reach 208 by 2025. The structure is 42 ft (12.8 m) long and 35 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCounty RD 178
CrossesLittle Sand Creek
Location4.3 MI N of Drain
RouteCounty Highway C0178
StateOregon
Coordinates43.71432, -123.28513
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.8 US tons
Inventory rating63.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length42 ft (12.8 m)
Longest span39 ft (11.9 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic183 (2020)
Projected traffic208 by 2025
Trucks5%
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 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 County RD 178 over Little Sand Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is County RD 178 over Little Sand 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 October 2024.

How much traffic does County RD 178 over Little Sand Creek carry?

About 183 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is County RD 178 over Little Sand Creek?

The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 35 ft wide.

Who owns County RD 178 over Little Sand Creek?

It is owned by the County Highway Agency.