US Bridges

Rt Dd S over Walnut CR

Fair

Randolph County, Missouri · S 31 T 55 N R 14 W · Structure no. 6850

Built
1957
68 years old, rebuilt 2018
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
97 ft
3 main spans
Daily traffic
540
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Dd S over Walnut CR is a steel stringer/multi-beam or girder carrying Rt Dd S over Walnut CR in Randolph County, Missouri. It was built in 1957 and reconstructed in 2018, so it is 68 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 540 vehicles a day, roughly 11% of them trucks, projected to reach 675 by 2044. The structure is 97 ft (29.6 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesRt Dd S
CrossesWalnut CR
LocationS 31 T 55 N R 14 W
RouteState Highway 0DD
CountyRandolph County
StateMissouri
Coordinates39.52029, -92.52637
Functional classRural Minor 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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.6 US tons
Inventory rating29.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 10
Structure length97 ft (29.6 m)
Longest span41 ft (12.6 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic540 (2024)
Projected traffic675 by 2044
Trucks11%
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 Dd S over Walnut CR built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2018.

What condition is Rt Dd S over Walnut 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 January 2025.

How much traffic does Rt Dd S over Walnut CR carry?

About 540 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Rt Dd S over Walnut CR?

The structure is 97 ft (29.6 m) long with a longest span of 41 ft (12.6 m) and a deck 25 ft wide.

Who owns Rt Dd S over Walnut CR?

It is owned by the State Highway Agency.