US Bridges

US 54 E over Rocky Hollow

Fair

Vernon County, Missouri · S 33 T 36 N R 29 W · Structure no. 4729

Built
1926
99 years old, rebuilt 1940
Condition
Fair
inspected March 2024
Type
Culvert
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
3,221
2024 count
Owner
State
State Highway Agency

About this bridge

US 54 E over Rocky Hollow is a concrete continuous culvert carrying US 54 E over Rocky Hollow in Vernon County, Missouri. It was built in 1926 and reconstructed in 1940, 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 3,221 vehicles a day, roughly 15% of them trucks, projected to reach 5,637 by 2044. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesUS 54 E
CrossesRocky Hollow
LocationS 33 T 36 N R 29 W
RouteU.S. Route 54
CountyVernon County
StateMissouri
Coordinates37.85524, -94.12722
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length28 ft (8.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,221 (2024)
Projected traffic5,637 by 2044
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 US 54 E over Rocky Hollow built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1940.

What condition is US 54 E over Rocky Hollow 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 US 54 E over Rocky Hollow carry?

About 3,221 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is US 54 E over Rocky Hollow?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m).

Who owns US 54 E over Rocky Hollow?

It is owned by the State Highway Agency.