US Bridges

US 71 S over Kct RR

Good

Jackson County, Missouri · S 8 T 49 N R 33 W · Structure no. 11994

Built
1998
27 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
123 ft
1 main span
Daily traffic
36,312
2024 count
Owner
State
State Highway Agency

About this bridge

US 71 S over Kct RR is a steel stringer/multi-beam or girder carrying US 71 S over Kct RR in Jackson County, Missouri. It was built in 1998, so it is 27 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 36,312 vehicles a day, roughly 6% of them trucks, projected to reach 49,021 by 2044. The structure is 123 ft (37.5 m) long and 82 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 71 S
CrossesKct RR
LocationS 8 T 49 N R 33 W
RouteU.S. Route 71
Coordinates39.08896, -94.57147
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.2 US tons
Inventory rating58.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length123 ft (37.5 m)
Longest span122 ft (37.3 m)
Deck width82 ft (25.1 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,312 (2024)
Projected traffic49,021 by 2044
Trucks6%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 Kct RR built?

It was built in 1998, making it 27 years old in 2025.

What condition is US 71 S over Kct RR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does US 71 S over Kct RR carry?

About 36,312 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is US 71 S over Kct RR?

The structure is 123 ft (37.5 m) long with a longest span of 122 ft (37.3 m) and a deck 82 ft wide.

Who owns US 71 S over Kct RR?

It is owned by the State Highway Agency.