US Bridges

Mo 139 S over Towstring CR

Fair

Livingston County, Missouri · S 26 T 56 N R 22 W · Structure no. 9077

Built
1948
77 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
341
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 139 S over Towstring CR is a concrete continuous culvert carrying Mo 139 S over Towstring CR in Livingston County, Missouri. It was built in 1948, so it is 77 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 5 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 341 vehicles a day, roughly 24% of them trucks, projected to reach 426 by 2044. The structure is 25 ft (7.6 m) long and 23 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesMo 139 S
CrossesTowstring CR
LocationS 26 T 56 N R 22 W
RouteState Highway 139
CountyLivingston County
StateMissouri
Coordinates39.63891, -93.34441
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.7 US tons
Inventory rating25.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width23 ft (7 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic341 (2024)
Projected traffic426 by 2044
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 139 S over Towstring CR built?

It was built in 1948, making it 77 years old in 2025.

What condition is Mo 139 S over Towstring CR 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 December 2024.

How much traffic does Mo 139 S over Towstring CR carry?

About 341 vehicles per day (2024 count), of which roughly 24% are trucks.

How long is Mo 139 S over Towstring CR?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 23 ft wide.

Who owns Mo 139 S over Towstring CR?

It is owned by the State Highway Agency.