US Bridges

Oneal RD over Rocky Fork Creek

Fair

Boone County, Missouri · S 34 T 49 N R 13 W · Structure no. 16589

Built
1981
44 years old
Condition
Fair
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
101 ft
2 main spans
Daily traffic
300
2023 count
Owner
County
County Highway Agency

About this bridge

Oneal RD over Rocky Fork Creek is a prestressed concrete tee beam carrying Oneal RD over Rocky Fork Creek in Boone County, Missouri. It was built in 1981, so it is 44 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 6 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 300 vehicles a day, roughly 5% of them trucks, projected to reach 570 by 2043. The structure is 101 ft (30.8 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesOneal RD
CrossesRocky Fork Creek
LocationS 34 T 49 N R 13 W
RouteCounty Highway 126
CountyBoone County
StateMissouri
Coordinates38.99667, -92.37666
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length101 ft (30.8 m)
Longest span50 ft (15.2 m)
Deck width23 ft (6.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic570 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Oneal RD over Rocky Fork Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Oneal RD over Rocky Fork Creek 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 December 2024.

How much traffic does Oneal RD over Rocky Fork Creek carry?

About 300 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Oneal RD over Rocky Fork Creek?

The structure is 101 ft (30.8 m) long with a longest span of 50 ft (15.2 m) and a deck 23 ft wide.

Who owns Oneal RD over Rocky Fork Creek?

It is owned by the County Highway Agency.