US Bridges

Mo 6 E over Imrl RR

Good

Sullivan County, Missouri · S 34 T 62 N R 22 W · Structure no. 4177

Built
1995
30 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
260 ft
3 main spans
Daily traffic
1,423
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 6 E over Imrl RR is a prestressed concrete continuous stringer/multi-beam or girder carrying Mo 6 E over Imrl RR in Sullivan County, Missouri. It was built in 1995, so it is 30 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,423 vehicles a day, roughly 19% of them trucks, projected to reach 2,490 by 2044. The structure is 260 ft (79.2 m) long and 41 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesMo 6 E
CrossesImrl RR
LocationS 34 T 62 N R 22 W
RouteState Highway 6
Coordinates40.12863, -93.36601
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.4 US tons
Inventory rating42.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length260 ft (79.2 m)
Longest span87 ft (26.6 m)
Deck width41 ft (12.6 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,423 (2024)
Projected traffic2,490 by 2044
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed18 mi (29 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 Imrl RR built?

It was built in 1995, making it 30 years old in 2025.

What condition is Mo 6 E over Imrl RR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

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

About 1,423 vehicles per day (2024 count), of which roughly 19% are trucks.

How long is Mo 6 E over Imrl RR?

The structure is 260 ft (79.2 m) long with a longest span of 87 ft (26.6 m) and a deck 41 ft wide.

Who owns Mo 6 E over Imrl RR?

It is owned by the State Highway Agency.