US Bridges

US 71 S over Br of Heart Grove

Fair

Jackson County, Missouri · S 22 T 48 N R 33 W · Structure no. 3925

Built
1988
37 years old, rebuilt 1992
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
76,249
2024 count
Owner
State
State Highway Agency

About this bridge

US 71 S over Br of Heart Grove is a concrete continuous culvert carrying US 71 S over Br of Heart Grove in Jackson County, Missouri. It was built in 1988 and reconstructed in 1992, so it is 37 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 76,249 vehicles a day, roughly 6% of them trucks, projected to reach 102,936 by 2044. The structure is 23 ft (7 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 71 S
CrossesBr of Heart Grove
LocationS 22 T 48 N R 33 W
RouteU.S. Route 71
Coordinates38.96862, -94.54378
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic76,249 (2024)
Projected traffic102,936 by 2044
Trucks6%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 US 71 S over Br of Heart Grove built?

It was built in 1988, making it 37 years old in 2025. It was reconstructed in 1992.

What condition is US 71 S over Br of Heart Grove 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 November 2023.

How much traffic does US 71 S over Br of Heart Grove carry?

About 76,249 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is US 71 S over Br of Heart Grove?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns US 71 S over Br of Heart Grove?

It is owned by the State Highway Agency.