US Bridges

Is 44 W over Mna RR

Fair

Lawrence County, Missouri · S 3 T 27 N R 27 W · Structure no. 724

Built
1964
61 years old, rebuilt 2020
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
169 ft
3 main spans
Daily traffic
16,527
2024 count
Owner
State
State Highway Agency

About this bridge

Is 44 W over Mna RR is a steel continuous stringer/multi-beam or girder carrying Is 44 W over Mna RR in Lawrence County, Missouri. It was built in 1964 and reconstructed in 2020, so it is 61 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 16,527 vehicles a day, roughly 26% of them trucks, projected to reach 31,401 by 2044. The structure is 169 ft (51.5 m) long and 33 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIs 44 W
CrossesMna RR
LocationS 3 T 27 N R 27 W
RouteInterstate 44
CountyLawrence County
StateMissouri
Coordinates37.08212, -93.86785
Functional classRural Principal Arterial - Interstate

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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.6 US tons
Inventory rating31.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length169 ft (51.5 m)
Longest span65 ft (19.8 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,527 (2024)
Projected traffic31,401 by 2044
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Is 44 W over Mna RR built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2020.

What condition is Is 44 W over Mna 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 July 2024.

How much traffic does Is 44 W over Mna RR carry?

About 16,527 vehicles per day (2024 count), of which roughly 26% are trucks.

How long is Is 44 W over Mna RR?

The structure is 169 ft (51.5 m) long with a longest span of 65 ft (19.8 m) and a deck 33 ft wide.

Who owns Is 44 W over Mna RR?

It is owned by the State Highway Agency.