US Bridges

US 71 N over Is 670 Cst Truman RD

Fair

Jackson County, Missouri · S 4 T 49 N R 33 W · Structure no. 12085

Built
1999
26 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,084 ft
16 main spans
Daily traffic
41,474
2024 count
Owner
State
State Highway Agency

About this bridge

US 71 N over Is 670 Cst Truman RD is a steel continuous stringer/multi-beam or girder carrying US 71 N over Is 670 Cst Truman RD in Jackson County, Missouri. It was built in 1999, so it is 26 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 41,474 vehicles a day, roughly 6% of them trucks, projected to reach 55,990 by 2044. The structure is 1,084 ft (330.4 m) long and 26 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS 71 N
CrossesIs 670 Cst Truman RD
LocationS 4 T 49 N R 33 W
RouteU.S. Route 71
CountyJackson County
StateMissouri
Coordinates39.09657, -94.5714
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.3 US tons
Inventory rating49.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans16
Design loadHS 25 or greater
Structure length1,084 ft (330.4 m)
Longest span113 ft (34.3 m)
Deck width26 ft (7.8 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41,474 (2024)
Projected traffic55,990 by 2044
Trucks6%
Lanes on structure2
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$6.7 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 71 N over Is 670 Cst Truman RD built?

It was built in 1999, making it 26 years old in 2025.

What condition is US 71 N over Is 670 Cst Truman RD 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 May 2024.

How much traffic does US 71 N over Is 670 Cst Truman RD carry?

About 41,474 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is US 71 N over Is 670 Cst Truman RD?

The structure is 1,084 ft (330.4 m) long with a longest span of 113 ft (34.3 m) and a deck 26 ft wide.

Who owns US 71 N over Is 670 Cst Truman RD?

It is owned by the State Highway Agency.