US Bridges

US 67 S over Mo 180

Fair

St. Louis County, Missouri · S 406 T 46 N R 5 E · Structure no. 5553

Built
1969
56 years old, rebuilt 2024
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
163 ft
4 main spans
Daily traffic
29,662
2024 count
Owner
State
State Highway Agency

About this bridge

US 67 S over Mo 180 is a steel continuous stringer/multi-beam or girder carrying US 67 S over Mo 180 in St. Louis County, Missouri. It was built in 1969 and reconstructed in 2024, so it is 56 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 29,662 vehicles a day, roughly 10% of them trucks, projected to reach 41,527 by 2044. The structure is 163 ft (49.7 m) long and 75 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesUS 67 S
CrossesMo 180
LocationS 406 T 46 N R 5 E
RouteU.S. Route 67
CountySt. Louis County
StateMissouri
Coordinates38.73772, -90.39911
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
Deck9 ExcellentNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length163 ft (49.7 m)
Longest span49 ft (14.9 m)
Deck width75 ft (22.8 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,662 (2024)
Projected traffic41,527 by 2044
Trucks10%
Lanes on structure4
Traffic directionTwo-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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 67 S over Mo 180 built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2024.

What condition is US 67 S over Mo 180 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 September 2024.

How much traffic does US 67 S over Mo 180 carry?

About 29,662 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is US 67 S over Mo 180?

The structure is 163 ft (49.7 m) long with a longest span of 49 ft (14.9 m) and a deck 75 ft wide.

Who owns US 67 S over Mo 180?

It is owned by the State Highway Agency.