US Bridges

Stringtown RD over Flat CR

FairPosted for load

Saline County, Missouri · S 29 T 50 N R 19 W · Structure no. 22175

Built
1920
105 years old, rebuilt 2003
Condition
Fair
inspected March 2024
Type
Girder and Floorbeam System
Steel
Length
26 ft
1 main span
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

Stringtown RD over Flat CR is a steel girder and floorbeam system carrying Stringtown RD over Flat CR in Saline County, Missouri. It was built in 1920 and reconstructed in 2003, so it is 105 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 6 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 50 vehicles a day, roughly 20% of them trucks, projected to reach 55 by 2044. The structure is 26 ft (7.9 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesStringtown RD
CrossesFlat CR
LocationS 29 T 50 N R 19 W
RouteCounty Highway 343
CountySaline County
StateMissouri
Coordinates39.07568, -93.02521
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.8 US tons
Inventory rating12.9 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span26 ft (7.8 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic55 by 2044
Trucks20%
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 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 Stringtown RD over Flat CR built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 2003.

What condition is Stringtown RD 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 March 2024.

How much traffic does Stringtown RD over Flat CR carry?

About 50 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is Stringtown RD over Flat CR?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.8 m) and a deck 20 ft wide.

Who owns Stringtown RD over Flat CR?

It is owned by the County Highway Agency.