US Bridges

County RD #310 over Shetleys CR

Fair

Madison County, Missouri · S 2 T 31 N R 7 E · Structure no. 14681

Built
1988
37 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

County RD #310 over Shetleys CR is a concrete culvert carrying County RD #310 over Shetleys CR in Madison County, Missouri. It was built in 1988, so it is 37 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 26 by 2044. The structure is 38 ft (11.6 m) long and 14 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty RD #310
CrossesShetleys CR
LocationS 2 T 31 N R 7 E
RouteCounty Highway 72
CountyMadison County
StateMissouri
Coordinates37.39681, -90.2446
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width14 ft (4.4 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic26 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 County RD #310 over Shetleys CR built?

It was built in 1988, making it 37 years old in 2025.

What condition is County RD #310 over Shetleys CR 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 2023.

How much traffic does County RD #310 over Shetleys CR carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD #310 over Shetleys CR?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m) and a deck 14 ft wide.

Who owns County RD #310 over Shetleys CR?

It is owned by the County Highway Agency.