US Bridges

Is 670 W over Cst Troost Ave

Fair

Jackson County, Missouri · S 4 T 49 N R 33 W · Structure no. 220

Built
1958
67 years old, rebuilt 2002
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
169 ft
3 main spans
Daily traffic
53,765
2024 count
Owner
State
State Highway Agency

About this bridge

Is 670 W over Cst Troost Ave is a concrete continuous slab carrying Is 670 W over Cst Troost Ave in Jackson County, Missouri. It was built in 1958 and reconstructed in 2002, so it is 67 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 53,765 vehicles a day, roughly 18% of them trucks, projected to reach 72,583 by 2044. The structure is 169 ft (51.5 m) long and 46 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesIs 670 W
CrossesCst Troost Ave
LocationS 4 T 49 N R 33 W
RouteInterstate 670
CountyJackson County
StateMissouri
Coordinates39.09681, -94.56998
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
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 rating66.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length169 ft (51.5 m)
Longest span70 ft (21.4 m)
Deck width46 ft (14.1 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic53,765 (2024)
Projected traffic72,583 by 2044
Trucks18%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$1.6 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 670 W over Cst Troost Ave built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2002.

What condition is Is 670 W over Cst Troost 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 August 2023.

How much traffic does Is 670 W over Cst Troost Ave carry?

About 53,765 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is Is 670 W over Cst Troost Ave?

The structure is 169 ft (51.5 m) long with a longest span of 70 ft (21.4 m) and a deck 46 ft wide.

Who owns Is 670 W over Cst Troost Ave?

It is owned by the State Highway Agency.