US Bridges

Mo 43 S over Buffalo CR

Fair

McDonald County, Missouri · S 4 T 22 N R 34 W · Structure no. 8582

Built
1930
95 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete
Length
243 ft
5 main spans
Daily traffic
1,032
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 43 S over Buffalo CR is a concrete tee beam carrying Mo 43 S over Buffalo CR in McDonald County, Missouri. It was built in 1930, so it is 95 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 5 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 1,032 vehicles a day, roughly 11% of them trucks, projected to reach 1,806 by 2044. The structure is 243 ft (74.1 m) long and 22 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

Location

Open in Google Maps
CarriesMo 43 S
CrossesBuffalo CR
LocationS 4 T 22 N R 34 W
RouteState Highway 43
CountyMcDonald County
StateMissouri
Coordinates36.67095, -94.60413
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.7 US tons
Inventory rating20.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 10
Structure length243 ft (74.1 m)
Longest span52 ft (16 m)
Deck width22 ft (6.6 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,032 (2024)
Projected traffic1,806 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.4 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 43 S over Buffalo CR built?

It was built in 1930, making it 95 years old in 2025.

What condition is Mo 43 S over Buffalo 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 October 2024.

How much traffic does Mo 43 S over Buffalo CR carry?

About 1,032 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Mo 43 S over Buffalo CR?

The structure is 243 ft (74.1 m) long with a longest span of 52 ft (16 m) and a deck 22 ft wide.

Who owns Mo 43 S over Buffalo CR?

It is owned by the State Highway Agency.