US Bridges

County RD 413 over Delaware CR

Fair

Stoddard County, Missouri · S 4 T 25 N R 10 E · Structure no. 35550

Built
2016
9 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 413 over Delaware CR is a concrete culvert carrying County RD 413 over Delaware CR in Stoddard County, Missouri. It was built in 2016, so it is 9 years old, younger 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 130 by 2043. The structure is 21 ft (6.3 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty RD 413
CrossesDelaware CR
LocationS 4 T 25 N R 10 E
RouteCounty Highway 446
CountyStoddard County
StateMissouri
Coordinates36.84078, -89.96833
Functional classRural Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.6 US tons
Inventory rating29.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length21 ft (6.3 m)
Longest span11 ft (3.3 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic130 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 413 over Delaware CR built?

It was built in 2016, making it 9 years old in 2025.

What condition is County RD 413 over Delaware 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 County RD 413 over Delaware CR carry?

About 100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 413 over Delaware CR?

The structure is 21 ft (6.3 m) long with a longest span of 11 ft (3.3 m) and a deck 28 ft wide.

Who owns County RD 413 over Delaware CR?

It is owned by the County Highway Agency.