US Bridges

Washington ST over Flat CR

FairPosted for load

Franklin County, Missouri · S 27 T 43 N R 1 W · Structure no. 23759

Built
1900
125 years old
Condition
Fair
inspected February 2025
Type
Culvert
Masonry
Length
63 ft
1 main span
Daily traffic
7,027
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Washington ST over Flat CR is a masonry culvert carrying Washington ST over Flat CR in Franklin County, Missouri. It was built in 1900, so it is 125 years old, older than the Missouri average of 45.1 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 7,027 vehicles a day, roughly 30% of them trucks, projected to reach 11,243 by 2043. The structure is 63 ft (19.2 m) long and 45 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesWashington ST
CrossesFlat CR
LocationS 27 T 43 N R 1 W
RouteCity Street 0
CountyFranklin County
StateMissouri
Coordinates38.448, -91.00933
Functional classUrban Minor 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialMasonry
DeckNot applicable
Main spans1
Design loadOther
Structure length63 ft (19.2 m)
Longest span30 ft (9.1 m)
Deck width45 ft (13.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,027 (2023)
Projected traffic11,243 by 2043
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Washington ST over Flat CR built?

It was built in 1900, making it 125 years old in 2025.

What condition is Washington ST over Flat CR 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 February 2025.

How much traffic does Washington ST over Flat CR carry?

About 7,027 vehicles per day (2023 count), of which roughly 30% are trucks.

How long is Washington ST over Flat CR?

The structure is 63 ft (19.2 m) long with a longest span of 30 ft (9.1 m) and a deck 45 ft wide.

Who owns Washington ST over Flat CR?

It is owned by the City or Municipal Highway Agency.