US Bridges

Old HWY 54 over Hillers CR

Good

Callaway County, Missouri · S 21 T 46 N R 10 W · Structure no. 34968

Built
2015
10 years old
Condition
Good
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
108 ft
1 main span
Daily traffic
150
2023 count
Owner
County
County Highway Agency

About this bridge

Old HWY 54 over Hillers CR is a prestressed concrete tee beam carrying Old HWY 54 over Hillers CR in Callaway County, Missouri. It was built in 2015, so it is 10 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 150 vehicles a day, roughly 10% of them trucks, projected to reach 225 by 2043. The structure is 108 ft (32.9 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesOld HWY 54
CrossesHillers CR
LocationS 21 T 46 N R 10 W
RouteCounty Highway 521
Coordinates38.74663, -92.04864
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure9 ExcellentNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.4 US tons
Inventory rating59.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length108 ft (32.9 m)
Longest span106 ft (32.2 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic225 by 2043
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old HWY 54 over Hillers CR built?

It was built in 2015, making it 10 years old in 2025.

What condition is Old HWY 54 over Hillers CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does Old HWY 54 over Hillers CR carry?

About 150 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Old HWY 54 over Hillers CR?

The structure is 108 ft (32.9 m) long with a longest span of 106 ft (32.2 m) and a deck 26 ft wide.

Who owns Old HWY 54 over Hillers CR?

It is owned by the County Highway Agency.