US Bridges

Rt N S over Maple Grove CR

Fair

DeKalb County, Missouri · S 9 T 57 N R 32 W · Structure no. 31311

Built
2006
19 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete Continuous
Length
61 ft
3 main spans
Daily traffic
358
2024 count
Owner
State
State Highway Agency

About this bridge

Rt N S over Maple Grove CR is a concrete continuous culvert carrying Rt N S over Maple Grove CR in DeKalb County, Missouri. It was built in 2006, so it is 19 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 358 vehicles a day, roughly 10% of them trucks, projected to reach 465 by 2044. The structure is 61 ft (18.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRt N S
CrossesMaple Grove CR
LocationS 9 T 57 N R 32 W
RouteState Highway 0N
Coordinates39.76779, -94.49425
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
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 inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.2 US tons
Inventory rating57.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length61 ft (18.5 m)
Longest span18 ft (5.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic358 (2024)
Projected traffic465 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 N S over Maple Grove CR built?

It was built in 2006, making it 19 years old in 2025.

What condition is Rt N S over Maple Grove 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 2024.

How much traffic does Rt N S over Maple Grove CR carry?

About 358 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rt N S over Maple Grove CR?

The structure is 61 ft (18.5 m) long with a longest span of 18 ft (5.6 m).

Who owns Rt N S over Maple Grove CR?

It is owned by the State Highway Agency.