US Bridges

Rt B S over Osage Fk

Good

Laclede County, Missouri · S 7 T 33 N R 14 W · Structure no. 8390

Built
1964
61 years old, rebuilt 2024
Condition
Good
inspected March 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
423 ft
5 main spans
Daily traffic
1,099
2024 count
Owner
State
State Highway Agency

About this bridge

Rt B S over Osage Fk is a steel continuous stringer/multi-beam or girder carrying Rt B S over Osage Fk in Laclede County, Missouri. It was built in 1964 and reconstructed in 2024, so it is 61 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,099 vehicles a day, roughly 10% of them trucks, projected to reach 1,649 by 2044. The structure is 423 ft (129 m) long and 29 ft wide. If it were closed, the detour would be 36 mi (58 km).

CarriesRt B S
CrossesOsage Fk
LocationS 7 T 33 N R 14 W
RouteState Highway 0B
Coordinates37.58826, -92.51484
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating34.7 US tons
Inventory rating20.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length423 ft (129 m)
Longest span92 ft (28 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,099 (2024)
Projected traffic1,649 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Rt B S over Osage Fk built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2024.

What condition is Rt B S over Osage Fk in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2025.

How much traffic does Rt B S over Osage Fk carry?

About 1,099 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rt B S over Osage Fk?

The structure is 423 ft (129 m) long with a longest span of 92 ft (28 m) and a deck 29 ft wide.

Who owns Rt B S over Osage Fk?

It is owned by the State Highway Agency.