US Bridges

County RD 516 over Hickory Creek

Fair

Audrain County, Missouri · S 11 T 51 N R 6 W · Structure no. 32521

Built
2008
17 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
80 ft
3 main spans
Daily traffic
75
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 516 over Hickory Creek is a concrete slab carrying County RD 516 over Hickory Creek in Audrain County, Missouri. It was built in 2008, so it is 17 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 75 vehicles a day, roughly 10% of them trucks, projected to reach 94 by 2043. The structure is 80 ft (24.4 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty RD 516
CrossesHickory Creek
LocationS 11 T 51 N R 6 W
RouteCounty Highway 538
CountyAudrain County
StateMissouri
Coordinates39.21583, -91.54131
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckOther
Main spans3
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic94 by 2043
Trucks10%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 516 over Hickory Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is County RD 516 over Hickory 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 May 2023.

How much traffic does County RD 516 over Hickory Creek carry?

About 75 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 516 over Hickory Creek?

The structure is 80 ft (24.4 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns County RD 516 over Hickory Creek?

It is owned by the County Highway Agency.