US Bridges

St. Louis RD over Panther CR

Fair

Lafayette County, Missouri · S 9 T 48 N R 24 W · Structure no. 21689

Built
1930
95 years old, rebuilt 1992
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
61 ft
1 main span
Daily traffic
350
2024 count
Owner
County
County Highway Agency

About this bridge

St. Louis RD over Panther CR is a steel stringer/multi-beam or girder carrying St. Louis RD over Panther CR in Lafayette County, Missouri. It was built in 1930 and reconstructed in 1992, so it is 95 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.

It carries about 350 vehicles a day, roughly 10% of them trucks, projected to reach 455 by 2044. The structure is 61 ft (18.6 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSt. Louis RD
CrossesPanther CR
LocationS 9 T 48 N R 24 W
RouteCounty Highway 319
Coordinates38.96652, -93.56679
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
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 rating83.3 US tons
Inventory rating58.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length61 ft (18.6 m)
Longest span58 ft (17.7 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2024)
Projected traffic455 by 2044
Trucks10%
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

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 St. Louis RD over Panther CR built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1992.

What condition is St. Louis RD over Panther 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 November 2023.

How much traffic does St. Louis RD over Panther CR carry?

About 350 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is St. Louis RD over Panther CR?

The structure is 61 ft (18.6 m) long with a longest span of 58 ft (17.7 m) and a deck 24 ft wide.

Who owns St. Louis RD over Panther CR?

It is owned by the County Highway Agency.