US Bridges

Heidleberger over Br of Fire Prairie

Fair

Jackson County, Missouri · S 34 T 50 N R 30 W · Structure no. 14993

Built
1976
49 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
407
2024 count
Owner
County
County Highway Agency

About this bridge

Heidleberger over Br of Fire Prairie is a concrete culvert carrying Heidleberger over Br of Fire Prairie in Jackson County, Missouri. It was built in 1976, so it is 49 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 407 vehicles a day, roughly 5% of them trucks, projected to reach 611 by 2044. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesHeidleberger
CrossesBr of Fire Prairie
LocationS 34 T 50 N R 30 W
RouteCounty Highway 81
Coordinates39.10941, -94.21074
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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating33.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic407 (2024)
Projected traffic611 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Heidleberger over Br of Fire Prairie built?

It was built in 1976, making it 49 years old in 2025.

What condition is Heidleberger over Br of Fire Prairie 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 February 2023.

How much traffic does Heidleberger over Br of Fire Prairie carry?

About 407 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Heidleberger over Br of Fire Prairie?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m).

Who owns Heidleberger over Br of Fire Prairie?

It is owned by the County Highway Agency.