US Bridges

Rt M S over Big CR

FairPosted for load

Wayne County, Missouri · S 4 T 30 N R 7 E · Structure no. 1504

Built
1966
59 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
185 ft
3 main spans
Daily traffic
390
2024 count
Owner
State
State Highway Agency

About this bridge

Rt M S over Big CR is a steel continuous stringer/multi-beam or girder carrying Rt M S over Big CR in Wayne County, Missouri. It was built in 1966, so it is 59 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. Its operating status is: posted for load restriction.

It carries about 390 vehicles a day, roughly 11% of them trucks, projected to reach 566 by 2044. The structure is 185 ft (56.4 m) long and 29 ft wide. If it were closed, the detour would be 60.3 mi (97 km).

Location

Open in Google Maps
CarriesRt M S
CrossesBig CR
LocationS 4 T 30 N R 7 E
RouteState Highway 0M
CountyWayne County
StateMissouri
Coordinates37.31071, -90.27729
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.7 US tons
Inventory rating18.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length185 ft (56.4 m)
Longest span71 ft (21.6 m)
Deck width29 ft (8.7 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2024)
Projected traffic566 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.3 mi (97 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 M S over Big CR built?

It was built in 1966, making it 59 years old in 2025.

What condition is Rt M S over Big 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 Rt M S over Big CR carry?

About 390 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Rt M S over Big CR?

The structure is 185 ft (56.4 m) long with a longest span of 71 ft (21.6 m) and a deck 29 ft wide.

Who owns Rt M S over Big CR?

It is owned by the State Highway Agency.