US Bridges

1801 over Bones Br

Poor

Bates County, Missouri · S 32 T 41 N R 31 W · Structure no. 18830

Built
1920
105 years old, rebuilt 1988
Condition
Poor
inspected January 2025
Type
Girder and Floorbeam System
Steel
Length
69 ft
2 main spans
Daily traffic
50
2023 count
Owner
County
County Highway Agency

About this bridge

1801 over Bones Br is a steel girder and floorbeam system carrying 1801 over Bones Br in Bates County, Missouri. It was built in 1920 and reconstructed in 1988, so it is 105 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 3 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.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 65 by 2043. The structure is 69 ft (21 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries1801
CrossesBones Br
LocationS 32 T 41 N R 31 W
RouteCounty Highway 201
Coordinates38.31676, -94.37914
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.5 US tons
Inventory rating37.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length69 ft (21 m)
Longest span43 ft (13.1 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic65 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$527,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 1801 over Bones Br built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1988.

What condition is 1801 over Bones Br 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 January 2025.

How much traffic does 1801 over Bones Br carry?

About 50 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 1801 over Bones Br?

The structure is 69 ft (21 m) long with a longest span of 43 ft (13.1 m) and a deck 16 ft wide.

Who owns 1801 over Bones Br?

It is owned by the County Highway Agency.