US Bridges

Mo 139 S over Grand Rvr Overflow

Good

Chariton County, Missouri · S 28 T 56 N R 21 W · Structure no. 36419

Built
2020
5 years old
Condition
Good
inspected December 2024
Type
Tee Beam
Prestressed Concrete
Length
349 ft
3 main spans
Daily traffic
400
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 139 S over Grand Rvr Overflow is a prestressed concrete tee beam carrying Mo 139 S over Grand Rvr Overflow in Chariton County, Missouri. It was built in 2020, so it is 5 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 400 vehicles a day, roughly 16% of them trucks, projected to reach 500 by 2044. The structure is 349 ft (106.3 m) long and 39 ft wide. If it were closed, the detour would be 64 mi (103 km).

CarriesMo 139 S
CrossesGrand Rvr Overflow
LocationS 28 T 56 N R 21 W
RouteState Highway 139
Coordinates39.64159, -93.26939
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 inspectionDecember 2024
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 rating73.4 US tons
Inventory rating44.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length349 ft (106.3 m)
Longest span115 ft (35.1 m)
Deck width39 ft (11.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2024)
Projected traffic500 by 2044
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed64 mi (103 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 139 S over Grand Rvr Overflow built?

It was built in 2020, making it 5 years old in 2025.

What condition is Mo 139 S over Grand Rvr Overflow 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 December 2024.

How much traffic does Mo 139 S over Grand Rvr Overflow carry?

About 400 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is Mo 139 S over Grand Rvr Overflow?

The structure is 349 ft (106.3 m) long with a longest span of 115 ft (35.1 m) and a deck 39 ft wide.

Who owns Mo 139 S over Grand Rvr Overflow?

It is owned by the State Highway Agency.