US Bridges

Mo 6 E over Is 29

Fair

Buchanan County, Missouri · S 2 T 57 N R 35 W · Structure no. 1

Built
1958
67 years old, rebuilt 1992
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
202 ft
4 main spans
Daily traffic
15,423
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 6 E over Is 29 is a steel continuous stringer/multi-beam or girder carrying Mo 6 E over Is 29 in Buchanan County, Missouri. It was built in 1958 and reconstructed in 1992, 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 15,423 vehicles a day, roughly 5% of them trucks, projected to reach 20,821 by 2044. The structure is 202 ft (61.6 m) long and 94 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesMo 6 E
CrossesIs 29
LocationS 2 T 57 N R 35 W
RouteState Highway 6
CountyBuchanan County
StateMissouri
Coordinates39.77701, -94.79364
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.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 rating64.5 US tons
Inventory rating38.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length202 ft (61.6 m)
Longest span56 ft (17.1 m)
Deck width94 ft (28.5 m)
Roadway width78 ft (23.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,423 (2024)
Projected traffic20,821 by 2044
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed6.2 mi (10 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 Mo 6 E over Is 29 built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1992.

What condition is Mo 6 E over Is 29 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 Mo 6 E over Is 29 carry?

About 15,423 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Mo 6 E over Is 29?

The structure is 202 ft (61.6 m) long with a longest span of 56 ft (17.1 m) and a deck 94 ft wide.

Who owns Mo 6 E over Is 29?

It is owned by the State Highway Agency.