US Bridges

Mo 149 S over Walnut CR

Good

Macon County, Missouri · S 14 T 60 N R 17 W · Structure no. 37053

Built
2023
2 years old
Condition
Good
inspected February 2025
Type
Tee Beam
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
29
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 149 S over Walnut CR is a prestressed concrete tee beam carrying Mo 149 S over Walnut CR in Macon County, Missouri. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 29 vehicles a day, roughly 13% of them trucks, projected to reach 36 by 2044. The structure is 68 ft (20.7 m) long and 27 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

Location

Open in Google Maps
CarriesMo 149 S
CrossesWalnut CR
LocationS 14 T 60 N R 17 W
RouteState Highway 149
CountyMacon County
StateMissouri
Coordinates40.01188, -92.75742
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating105.2 US tons
Inventory rating62.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length68 ft (20.7 m)
Longest span68 ft (20.7 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29 (2024)
Projected traffic36 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 149 S over Walnut CR built?

It was built in 2023, making it 2 years old in 2025.

What condition is Mo 149 S over Walnut CR 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 February 2025.

How much traffic does Mo 149 S over Walnut CR carry?

About 29 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is Mo 149 S over Walnut CR?

The structure is 68 ft (20.7 m) long with a longest span of 68 ft (20.7 m) and a deck 27 ft wide.

Who owns Mo 149 S over Walnut CR?

It is owned by the State Highway Agency.