US Bridges

US 54 W over Missouri Rvr UP RR

Fair

Callaway County, Missouri · S 7 T 44 N R 11 W · Structure no. 6345

Built
1955
70 years old
Condition
Fair
inspected November 2024
Type
Truss - Thru
Steel Continuous
Length
3,094 ft
3 main spans
Daily traffic
29,666
2024 count
Owner
State
State Highway Agency

About this bridge

US 54 W over Missouri Rvr UP RR is a steel continuous truss - thru carrying US 54 W over Missouri Rvr UP RR in Callaway County, Missouri. It was built in 1955, so it is 70 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 29,666 vehicles a day, roughly 16% of them trucks, projected to reach 54,882 by 2044. The structure is 3,094 ft (943.1 m) long and 41 ft wide. If it were closed, the detour would be 87 mi (140 km).

CarriesUS 54 W
CrossesMissouri Rvr UP RR
LocationS 7 T 44 N R 11 W
RouteU.S. Route 54
Coordinates38.58961, -92.17683
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.5 US tons
Inventory rating33.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+15 approach)
Design loadHS 20
Structure length3,094 ft (943.1 m)
Longest span640 ft (195.1 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic29,666 (2024)
Projected traffic54,882 by 2044
Trucks16%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed87 mi (140 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$122.2 million (2025 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US 54 W over Missouri Rvr UP RR built?

It was built in 1955, making it 70 years old in 2025.

What condition is US 54 W over Missouri Rvr UP RR 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 2024.

How much traffic does US 54 W over Missouri Rvr UP RR carry?

About 29,666 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is US 54 W over Missouri Rvr UP RR?

The structure is 3,094 ft (943.1 m) long with a longest span of 640 ft (195.1 m) and a deck 41 ft wide.

Who owns US 54 W over Missouri Rvr UP RR?

It is owned by the State Highway Agency.