US Bridges

Rt an S over May Br

Fair

Franklin County, Missouri · S 2 T 41 N R 4 W · Structure no. 8314

Built
1963
62 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
46 ft
3 main spans
Daily traffic
121
2024 count
Owner
State
State Highway Agency

About this bridge

Rt an S over May Br is a concrete continuous culvert carrying Rt an S over May Br in Franklin County, Missouri. It was built in 1963, so it is 62 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 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 121 vehicles a day, roughly 8% of them trucks, projected to reach 230 by 2044. The structure is 46 ft (13.9 m) long and 33 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesRt an S
CrossesMay Br
LocationS 2 T 41 N R 4 W
RouteState Highway 0AN
Coordinates38.32002, -91.34216
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 above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating79.4 US tons
Inventory rating47.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 15
Structure length46 ft (13.9 m)
Longest span12 ft (3.7 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic121 (2024)
Projected traffic230 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

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 Rt an S over May Br built?

It was built in 1963, making it 62 years old in 2025.

What condition is Rt an S over May Br 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 Rt an S over May Br carry?

About 121 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Rt an S over May Br?

The structure is 46 ft (13.9 m) long with a longest span of 12 ft (3.7 m) and a deck 33 ft wide.

Who owns Rt an S over May Br?

It is owned by the State Highway Agency.