US Bridges

Is 49 S over Cst Mechanic ST Mo 2

Fair

Cass County, Missouri · S 5 T 44 N R 31 W · Structure no. 1318

Built
1965
60 years old, rebuilt 2002
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
142 ft
3 main spans
Daily traffic
22,096
2024 count
Owner
State
State Highway Agency

About this bridge

Is 49 S over Cst Mechanic ST Mo 2 is a concrete continuous slab carrying Is 49 S over Cst Mechanic ST Mo 2 in Cass County, Missouri. It was built in 1965 and reconstructed in 2002, so it is 60 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 22,096 vehicles a day, roughly 20% of them trucks, projected to reach 38,668 by 2044. The structure is 142 ft (43.3 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIs 49 S
CrossesCst Mechanic ST Mo 2
LocationS 5 T 44 N R 31 W
RouteInterstate 49
Coordinates38.65352, -94.36611
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionNovember 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 rating69.4 US tons
Inventory rating41.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length142 ft (43.3 m)
Longest span55 ft (16.8 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,096 (2024)
Projected traffic38,668 by 2044
Trucks20%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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$1.4 million (2025 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 49 S over Cst Mechanic ST Mo 2 built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2002.

What condition is Is 49 S over Cst Mechanic ST Mo 2 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 November 2023.

How much traffic does Is 49 S over Cst Mechanic ST Mo 2 carry?

About 22,096 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is Is 49 S over Cst Mechanic ST Mo 2?

The structure is 142 ft (43.3 m) long with a longest span of 55 ft (16.8 m) and a deck 34 ft wide.

Who owns Is 49 S over Cst Mechanic ST Mo 2?

It is owned by the State Highway Agency.