US Bridges

US 54 E over Mna RR

Fair

Vernon County, Missouri · S 8 T 35 N R 33 W · Structure no. 3615

Built
1987
38 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
383 ft
5 main spans
Daily traffic
3,585
2024 count
Owner
State
State Highway Agency

About this bridge

US 54 E over Mna RR is a steel continuous stringer/multi-beam or girder carrying US 54 E over Mna RR in Vernon County, Missouri. It was built in 1987, so it is 38 years old, younger 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 3,585 vehicles a day, roughly 14% of them trucks, projected to reach 6,274 by 2044. The structure is 383 ft (116.7 m) long and 46 ft wide. If it were closed, the detour would be 95.1 mi (153 km).

Location

Open in Google Maps
CarriesUS 54 E
CrossesMna RR
LocationS 8 T 35 N R 33 W
RouteU.S. Route 54
CountyVernon County
StateMissouri
Coordinates37.84342, -94.59534
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length383 ft (116.7 m)
Longest span103 ft (31.4 m)
Deck width46 ft (13.9 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,585 (2024)
Projected traffic6,274 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed95.1 mi (153 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 54 E over Mna RR built?

It was built in 1987, making it 38 years old in 2025.

What condition is US 54 E over Mna 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 June 2023.

How much traffic does US 54 E over Mna RR carry?

About 3,585 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is US 54 E over Mna RR?

The structure is 383 ft (116.7 m) long with a longest span of 103 ft (31.4 m) and a deck 46 ft wide.

Who owns US 54 E over Mna RR?

It is owned by the State Highway Agency.