US Bridges

National Ave S over US 60

Fair

Greene County, Missouri · S 12 T 28 N R 22 W · Structure no. 3416

Built
1988
37 years old, rebuilt 2009
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
275 ft
2 main spans
Daily traffic
29,494
2024 count
Owner
State
State Highway Agency

About this bridge

National Ave S over US 60 is a steel continuous stringer/multi-beam or girder carrying National Ave S over US 60 in Greene County, Missouri. It was built in 1988 and reconstructed in 2009, so it is 37 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 29,494 vehicles a day, roughly 5% of them trucks, projected to reach 47,190 by 2044. The structure is 275 ft (83.8 m) long and 99 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNational Ave S
CrossesUS 60
LocationS 12 T 28 N R 22 W
RouteCity Street 0
CountyGreene County
StateMissouri
Coordinates37.14194, -93.27807
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating37.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length275 ft (83.8 m)
Longest span118 ft (36 m)
Deck width99 ft (30.3 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,494 (2024)
Projected traffic47,190 by 2044
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 National Ave S over US 60 built?

It was built in 1988, making it 37 years old in 2025. It was reconstructed in 2009.

What condition is National Ave S over US 60 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 July 2024.

How much traffic does National Ave S over US 60 carry?

About 29,494 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is National Ave S over US 60?

The structure is 275 ft (83.8 m) long with a longest span of 118 ft (36 m) and a deck 99 ft wide.

Who owns National Ave S over US 60?

It is owned by the State Highway Agency.