US Bridges

Mo 51 S over Str

Fair

Stoddard County, Missouri · S 18 T 27 N R 9 E · Structure no. 4951

Built
1925
100 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
28 ft
8 main spans
Daily traffic
1,420
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 51 S over Str is a concrete continuous culvert carrying Mo 51 S over Str in Stoddard County, Missouri. It was built in 1925, so it is 100 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 1,420 vehicles a day, roughly 26% of them trucks, projected to reach 1,988 by 2044. The structure is 28 ft (8.4 m) long and 32 ft wide. If it were closed, the detour would be 37.9 mi (61 km).

Location

Open in Google Maps
CarriesMo 51 S
CrossesStr
LocationS 18 T 27 N R 9 E
RouteState Highway 51
CountyStoddard County
StateMissouri
Coordinates36.98204, -90.12262
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans8
Design loadH 15
Structure length28 ft (8.4 m)
Longest span3 ft (0.9 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,420 (2024)
Projected traffic1,988 by 2044
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.9 mi (61 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 Mo 51 S over Str built?

It was built in 1925, making it 100 years old in 2025.

What condition is Mo 51 S over Str 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 2023.

How much traffic does Mo 51 S over Str carry?

About 1,420 vehicles per day (2024 count), of which roughly 26% are trucks.

How long is Mo 51 S over Str?

The structure is 28 ft (8.4 m) long with a longest span of 3 ft (0.9 m) and a deck 32 ft wide.

Who owns Mo 51 S over Str?

It is owned by the State Highway Agency.