US Bridges

Mo 6 E over Abandoned RR

Fair

Adair County, Missouri · S 33 T 63 N R 14 W · Structure no. 2492

Built
1974
51 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
145 ft
3 main spans
Daily traffic
5,089
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 6 E over Abandoned RR is a steel continuous stringer/multi-beam or girder carrying Mo 6 E over Abandoned RR in Adair County, Missouri. It was built in 1974, so it is 51 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 5 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 5,089 vehicles a day, roughly 9% of them trucks, projected to reach 6,616 by 2044. The structure is 145 ft (44.2 m) long and 47 ft wide. If it were closed, the detour would be 28 mi (45 km).

Location

Open in Google Maps
CarriesMo 6 E
CrossesAbandoned RR
LocationS 33 T 63 N R 14 W
RouteState Highway 6
CountyAdair County
StateMissouri
Coordinates40.21662, -92.58629
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span55 ft (16.8 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,089 (2024)
Projected traffic6,616 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed28 mi (45 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 Abandoned RR built?

It was built in 1974, making it 51 years old in 2025.

What condition is Mo 6 E over Abandoned RR 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 December 2023.

How much traffic does Mo 6 E over Abandoned RR carry?

About 5,089 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Mo 6 E over Abandoned RR?

The structure is 145 ft (44.2 m) long with a longest span of 55 ft (16.8 m) and a deck 47 ft wide.

Who owns Mo 6 E over Abandoned RR?

It is owned by the State Highway Agency.