US Bridges

Is 49 S over Lp 49 Mna RR

Good

Bates County, Missouri · S 3 T 40 N R 31 W · Structure no. 1674

Built
1969
56 years old, rebuilt 2023
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
309 ft
4 main spans
Daily traffic
7,743
2024 count
Owner
State
State Highway Agency

About this bridge

Is 49 S over Lp 49 Mna RR is a steel continuous stringer/multi-beam or girder carrying Is 49 S over Lp 49 Mna RR in Bates County, Missouri. It was built in 1969 and reconstructed in 2023, 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 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 7,743 vehicles a day, roughly 35% of them trucks, projected to reach 13,550 by 2044. The structure is 309 ft (94.2 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIs 49 S
CrossesLp 49 Mna RR
LocationS 3 T 40 N R 31 W
RouteInterstate 49
Coordinates38.30704, -94.34671
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 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 rating53.6 US tons
Inventory rating32.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length309 ft (94.2 m)
Longest span86 ft (26.2 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,743 (2024)
Projected traffic13,550 by 2044
Trucks35%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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 49 S over Lp 49 Mna RR built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2023.

What condition is Is 49 S over Lp 49 Mna 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 October 2023.

How much traffic does Is 49 S over Lp 49 Mna RR carry?

About 7,743 vehicles per day (2024 count), of which roughly 35% are trucks.

How long is Is 49 S over Lp 49 Mna RR?

The structure is 309 ft (94.2 m) long with a longest span of 86 ft (26.2 m) and a deck 41 ft wide.

Who owns Is 49 S over Lp 49 Mna RR?

It is owned by the State Highway Agency.