US Bridges

Old State RD over Trib of Boeuf CR

Fair

Gasconade County, Missouri · S 21 T 43 N R 4 W · Structure no. 15444

Built
1930
95 years old, rebuilt 2007
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
114
2024 count
Owner
County
County Highway Agency

About this bridge

Old State RD over Trib of Boeuf CR is a concrete slab carrying Old State RD over Trib of Boeuf CR in Gasconade County, Missouri. It was built in 1930 and reconstructed in 2007, 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 114 vehicles a day, roughly 10% of them trucks, projected to reach 137 by 2044. The structure is 23 ft (6.9 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesOld State RD
CrossesTrib of Boeuf CR
LocationS 21 T 43 N R 4 W
RouteCounty Highway 93
Coordinates38.45948, -91.37649
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 inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.7 US tons
Inventory rating23.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length23 ft (6.9 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic114 (2024)
Projected traffic137 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 Old State RD over Trib of Boeuf CR built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2007.

What condition is Old State RD over Trib of Boeuf 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 Old State RD over Trib of Boeuf CR carry?

About 114 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Old State RD over Trib of Boeuf CR?

The structure is 23 ft (6.9 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns Old State RD over Trib of Boeuf CR?

It is owned by the County Highway Agency.