US Bridges

Overlake ST over Duck Lake

FairPosted for load

Grays Harbor County, Washington · 0.1 W Duck Lake DR · Structure no. 085005000000000

Built
1970
55 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
133 ft
5 main spans
Daily traffic
352
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Overlake ST over Duck Lake is a wood or timber stringer/multi-beam or girder carrying Overlake ST over Duck Lake in Grays Harbor County, Washington. It was built in 1970, so it is 55 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 352 vehicles a day, roughly 7% of them trucks, projected to reach 496 by 2041. The structure is 133 ft (40.5 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesOverlake ST
CrossesDuck Lake
Location0.1 W Duck Lake DR
RouteCity Street 18
CountyGrays Harbor County
StateWashington
Coordinates46.98881, -124.14628
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating16 US tons
Inventory rating12 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadHL 93
Structure length133 ft (40.5 m)
Longest span31 ft (9.4 m)
Deck width32 ft (9.8 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic352 (2019)
Projected traffic496 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Overlake ST over Duck Lake built?

It was built in 1970, making it 55 years old in 2025.

What condition is Overlake ST over Duck Lake 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 2023.

How much traffic does Overlake ST over Duck Lake carry?

About 352 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is Overlake ST over Duck Lake?

The structure is 133 ft (40.5 m) long with a longest span of 31 ft (9.4 m) and a deck 32 ft wide.

Who owns Overlake ST over Duck Lake?

It is owned by the City or Municipal Highway Agency.