US Bridges

Madrona Beach Road over Perry Creek

Fair

Thurston County, Washington · 0.6 W Mud Bay RD · Structure no. 081544000000000

Built
1958
67 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Single or Spread
Concrete
Length
102 ft
3 main spans
Daily traffic
1,325
2020 count
Owner
County
County Highway Agency

About this bridge

Madrona Beach Road over Perry Creek is a concrete box beam or girders - single or spread carrying Madrona Beach Road over Perry Creek in Thurston County, Washington. It was built in 1958, 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 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 1,325 vehicles a day, roughly 15% of them trucks, projected to reach 2,048 by 2042. The structure is 102 ft (31.1 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesMadrona Beach Road
CrossesPerry Creek
Location0.6 W Mud Bay RD
RouteCounty Highway 13080
CountyThurston County
StateWashington
Coordinates47.05221, -123.0014
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
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 rating66 US tons
Inventory rating40 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span66 ft (20.1 m)
Deck width32 ft (9.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,325 (2020)
Projected traffic2,048 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Madrona Beach Road over Perry Creek built?

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

What condition is Madrona Beach Road over Perry 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 July 2024.

How much traffic does Madrona Beach Road over Perry Creek carry?

About 1,325 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Madrona Beach Road over Perry Creek?

The structure is 102 ft (31.1 m) long with a longest span of 66 ft (20.1 m) and a deck 32 ft wide.

Who owns Madrona Beach Road over Perry Creek?

It is owned by the County Highway Agency.