US Bridges

140th ST over Br of Sampson CR

PoorPosted for load

Daviess County, Missouri · S 34 T 62 N R 29 W · Structure no. 12328

Built
1930
95 years old
Condition
Poor
inspected December 2023
Type
Truss - Thru
Steel
Length
46 ft
1 main span
Daily traffic
5
2024 count
Owner
County
County Highway Agency

About this bridge

140th ST over Br of Sampson CR is a steel truss - thru carrying 140th ST over Br of Sampson CR in Daviess County, Missouri. It was built in 1930, so it is 95 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 5 vehicles a day, roughly 10% of them trucks, projected to reach 6 by 2044. The structure is 46 ft (14 m) long and 14 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries140th ST
CrossesBr of Sampson CR
LocationS 34 T 62 N R 29 W
RouteCounty Highway 6
CountyDaviess County
StateMissouri
Coordinates40.1245, -94.14179
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating5 US tons
Inventory rating3 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadOther
Structure length46 ft (14 m)
Longest span45 ft (13.7 m)
Deck width14 ft (4.3 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5 (2024)
Projected traffic6 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$383,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 140th ST over Br of Sampson CR built?

It was built in 1930, making it 95 years old in 2025.

What condition is 140th ST over Br of Sampson CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.

How much traffic does 140th ST over Br of Sampson CR carry?

About 5 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 140th ST over Br of Sampson CR?

The structure is 46 ft (14 m) long with a longest span of 45 ft (13.7 m) and a deck 14 ft wide.

Who owns 140th ST over Br of Sampson CR?

It is owned by the County Highway Agency.