US Bridges

Marshfield RD over Stewart CR

Good

Christian County, Missouri · S 12 T 27 N R 19 W · Structure no. 21398

Built
1994
31 years old
Condition
Good
inspected January 2025
Type
Slab
Concrete Continuous
Length
89 ft
6 main spans
Daily traffic
30
2025 count
Owner
County
County Highway Agency

About this bridge

Marshfield RD over Stewart CR is a concrete continuous slab carrying Marshfield RD over Stewart CR in Christian County, Missouri. It was built in 1994, so it is 31 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, roughly 10% of them trucks, projected to reach 60 by 2045. The structure is 89 ft (27.1 m) long and 14 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesMarshfield RD
CrossesStewart CR
LocationS 12 T 27 N R 19 W
RouteCounty Highway 304
Coordinates37.05789, -92.9716
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2025
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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating45.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadOther
Structure length89 ft (27.1 m)
Longest span15 ft (4.6 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2025)
Projected traffic60 by 2045
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$445,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Marshfield RD over Stewart CR built?

It was built in 1994, making it 31 years old in 2025.

What condition is Marshfield RD over Stewart CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.

How much traffic does Marshfield RD over Stewart CR carry?

About 30 vehicles per day (2025 count), of which roughly 10% are trucks.

How long is Marshfield RD over Stewart CR?

The structure is 89 ft (27.1 m) long with a longest span of 15 ft (4.6 m) and a deck 14 ft wide.

Who owns Marshfield RD over Stewart CR?

It is owned by the County Highway Agency.