US Bridges

US 71 S over Cst Prospect Ave

Fair

Jackson County, Missouri · S 27 T 49 N R 33 W · Structure no. 4038

Built
1995
30 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
218 ft
2 main spans
Daily traffic
40,863
2024 count
Owner
State
State Highway Agency

About this bridge

US 71 S over Cst Prospect Ave is a steel stringer/multi-beam or girder carrying US 71 S over Cst Prospect Ave in Jackson County, Missouri. It was built in 1995, so it is 30 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 40,863 vehicles a day, roughly 6% of them trucks, projected to reach 55,165 by 2044. The structure is 218 ft (66.4 m) long and 58 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 71 S
CrossesCst Prospect Ave
LocationS 27 T 49 N R 33 W
RouteU.S. Route 71
Coordinates39.03651, -94.55455
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating69.4 US tons
Inventory rating41.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length218 ft (66.4 m)
Longest span144 ft (44 m)
Deck width58 ft (17.6 m)
Roadway width55 ft (16.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,863 (2024)
Projected traffic55,165 by 2044
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 71 S over Cst Prospect Ave built?

It was built in 1995, making it 30 years old in 2025.

What condition is US 71 S over Cst Prospect Ave 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 September 2023.

How much traffic does US 71 S over Cst Prospect Ave carry?

About 40,863 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is US 71 S over Cst Prospect Ave?

The structure is 218 ft (66.4 m) long with a longest span of 144 ft (44 m) and a deck 58 ft wide.

Who owns US 71 S over Cst Prospect Ave?

It is owned by the State Highway Agency.