US Bridges

Stadium Way over Missouri Flat Creek

Fair

Whitman County, Washington · 00.05 E JCT SR27 · Structure no. 085563000000000

Built
1946
79 years old, rebuilt 1979
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete
Length
36 ft
1 main span
Daily traffic
14,901
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Stadium Way over Missouri Flat Creek is a concrete tee beam carrying Stadium Way over Missouri Flat Creek in Whitman County, Washington. It was built in 1946 and reconstructed in 1979, so it is 79 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 14,901 vehicles a day, roughly 2% of them trucks, projected to reach 22,300 by 2042. The structure is 36 ft (11 m) long and 74 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesStadium Way
CrossesMissouri Flat Creek
Location00.05 E JCT SR27
RouteCity Street 1006
CountyWhitman County
StateWashington
Coordinates46.70667, -117.17
Functional classUrban Other Principal Arterial

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.
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.3 US tons
Inventory rating26.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length36 ft (11 m)
Longest span35 ft (10.7 m)
Deck width74 ft (22.6 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,901 (2021)
Projected traffic22,300 by 2042
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Stadium Way over Missouri Flat Creek built?

It was built in 1946, making it 79 years old in 2025. It was reconstructed in 1979.

What condition is Stadium Way over Missouri Flat 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 October 2024.

How much traffic does Stadium Way over Missouri Flat Creek carry?

About 14,901 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Stadium Way over Missouri Flat Creek?

The structure is 36 ft (11 m) long with a longest span of 35 ft (10.7 m) and a deck 74 ft wide.

Who owns Stadium Way over Missouri Flat Creek?

It is owned by the City or Municipal Highway Agency.