US Bridges

Woodard Bay Road over Woodard Bay

Fair

Thurston County, Washington · 0.6 M E Libby RD · Structure no. 082518000000000

Built
1958
67 years old, rebuilt 1977
Condition
Fair
inspected May 2024
Type
Slab
Concrete Continuous
Length
60 ft
3 main spans
Daily traffic
1,137
2020 count
Owner
County
County Highway Agency

About this bridge

Woodard Bay Road over Woodard Bay is a concrete continuous slab carrying Woodard Bay Road over Woodard Bay in Thurston County, Washington. It was built in 1958 and reconstructed in 1977, so it is 67 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.

It carries about 1,137 vehicles a day, roughly 15% of them trucks, projected to reach 1,758 by 2042. The structure is 60 ft (18.3 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesWoodard Bay Road
CrossesWoodard Bay
Location0.6 M E Libby RD
RouteCounty Highway 15665
CountyThurston County
StateWashington
Coordinates47.12654, -122.85297
Functional classRural Major 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span22 ft (6.7 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,137 (2020)
Projected traffic1,758 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Woodard Bay Road over Woodard Bay built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1977.

What condition is Woodard Bay Road over Woodard Bay 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 May 2024.

How much traffic does Woodard Bay Road over Woodard Bay carry?

About 1,137 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Woodard Bay Road over Woodard Bay?

The structure is 60 ft (18.3 m) long with a longest span of 22 ft (6.7 m) and a deck 26 ft wide.

Who owns Woodard Bay Road over Woodard Bay?

It is owned by the County Highway Agency.