US Bridges

Bu 54 E over Smith Br

Fair

Callaway County, Missouri · S 8 T 47 N R 9 W · Structure no. 4936

Built
1926
99 years old, rebuilt 1962
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
27 ft
1 main span
Daily traffic
11,921
2024 count
Owner
State
State Highway Agency

About this bridge

Bu 54 E over Smith Br is a concrete slab carrying Bu 54 E over Smith Br in Callaway County, Missouri. It was built in 1926 and reconstructed in 1962, so it is 99 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.

It carries about 11,921 vehicles a day, roughly 5% of them trucks, projected to reach 19,670 by 2044. The structure is 27 ft (8.2 m) long and 42 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesBu 54 E
CrossesSmith Br
LocationS 8 T 47 N R 9 W
RouteState Highway 54
Coordinates38.85982, -91.94404
Functional classUrban Other Principal 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.6 US tons
Inventory rating27.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length27 ft (8.2 m)
Longest span27 ft (8.1 m)
Deck width42 ft (12.8 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,921 (2024)
Projected traffic19,670 by 2044
Trucks5%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 Bu 54 E over Smith Br built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1962.

What condition is Bu 54 E over Smith Br 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 October 2024.

How much traffic does Bu 54 E over Smith Br carry?

About 11,921 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Bu 54 E over Smith Br?

The structure is 27 ft (8.2 m) long with a longest span of 27 ft (8.1 m) and a deck 42 ft wide.

Who owns Bu 54 E over Smith Br?

It is owned by the State Highway Agency.