US Bridges

Airport RD (3 Nw) over Douglas Creek Drainage

FairPosted for load

Douglas County, Washington · 2.7 E RD O NW · Structure no. 081644000000000

Built
1949
76 years old, rebuilt 1981
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
24 ft
1 main span
Daily traffic
220
2021 count
Owner
County
County Highway Agency

About this bridge

Airport RD (3 Nw) over Douglas Creek Drainage is a wood or timber stringer/multi-beam or girder carrying Airport RD (3 Nw) over Douglas Creek Drainage in Douglas County, Washington. It was built in 1949 and reconstructed in 1981, so it is 76 years old, older than the Washington average of 49.8 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. Its operating status is: posted for load restriction.

It carries about 220 vehicles a day, roughly 14% of them trucks, projected to reach 231 by 2041. The structure is 24 ft (7.4 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesAirport RD (3 Nw)
CrossesDouglas Creek Drainage
Location2.7 E RD O NW
RouteCounty Highway 52760
CountyDouglas County
StateWashington
Coordinates47.65626, -120.02691
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33 US tons
Inventory rating20 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length24 ft (7.4 m)
Longest span22 ft (6.6 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic220 (2021)
Projected traffic231 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Airport RD (3 Nw) over Douglas Creek Drainage built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1981.

What condition is Airport RD (3 Nw) over Douglas Creek Drainage 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 April 2024.

How much traffic does Airport RD (3 Nw) over Douglas Creek Drainage carry?

About 220 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is Airport RD (3 Nw) over Douglas Creek Drainage?

The structure is 24 ft (7.4 m) long with a longest span of 22 ft (6.6 m) and a deck 28 ft wide.

Who owns Airport RD (3 Nw) over Douglas Creek Drainage?

It is owned by the County Highway Agency.