US Bridges

Leitner St. over Scatter Creek

Fair

Thurston County, Washington · 0.33 M S of 176th Ave SW · Structure no. 084192000000000

Built
1978
47 years old
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
70 ft
3 main spans
Daily traffic
282
2020 count
Owner
County
County Highway Agency

About this bridge

Leitner St. over Scatter Creek is a prestressed concrete slab carrying Leitner St. over Scatter Creek in Thurston County, Washington. It was built in 1978, so it is 47 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 282 vehicles a day, roughly 15% of them trucks, projected to reach 436 by 2042. The structure is 70 ft (21.3 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesLeitner St.
CrossesScatter Creek
Location0.33 M S of 176th Ave SW
RouteCounty Highway 12870
CountyThurston County
StateWashington
Coordinates46.83057, -122.97815
Functional classUrban 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 protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.9 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span23 ft (7 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic282 (2020)
Projected traffic436 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$2.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Leitner St. over Scatter Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is Leitner St. 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 August 2024.

How much traffic does Leitner St. over Scatter Creek carry?

About 282 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Leitner St. over Scatter Creek?

The structure is 70 ft (21.3 m) long with a longest span of 23 ft (7 m) and a deck 29 ft wide.

Who owns Leitner St. over Scatter Creek?

It is owned by the County Highway Agency.