US Bridges

Sargent Road over Scatter Creek

Fair

Thurston County, Washington · .63 M N of 183rd · Structure no. 084641000000000

Built
1984
41 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete Continuous
Length
136 ft
4 main spans
Daily traffic
2,812
2021 count
Owner
County
County Highway Agency

About this bridge

Sargent Road over Scatter Creek is a concrete continuous slab carrying Sargent Road over Scatter Creek in Thurston County, Washington. It was built in 1984, so it is 41 years old, younger 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 2,812 vehicles a day, roughly 15% of them trucks, projected to reach 4,347 by 2043. The structure is 136 ft (41.5 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesSargent Road
CrossesScatter Creek
Location.63 M N of 183rd
RouteCounty Highway 14420
CountyThurston County
StateWashington
Coordinates46.82904, -123.04855
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating86 US tons
Inventory rating51 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length136 ft (41.5 m)
Longest span34 ft (10.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,812 (2021)
Projected traffic4,347 by 2043
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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$2.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sargent Road over Scatter Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Sargent Road over Scatter 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 June 2024.

How much traffic does Sargent Road over Scatter Creek carry?

About 2,812 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Sargent Road over Scatter Creek?

The structure is 136 ft (41.5 m) long with a longest span of 34 ft (10.4 m) and a deck 30 ft wide.

Who owns Sargent Road over Scatter Creek?

It is owned by the County Highway Agency.