US Bridges

230th ST over Arm of Long Br

Fair

Nodaway County, Missouri · S 33 T 65 N R 34 W · Structure no. 36814

Built
2019
6 years old
Condition
Fair
inspected January 2025
Type
Channel Beam
Concrete
Length
46 ft
1 main span
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

230th ST over Arm of Long Br is a concrete channel beam carrying 230th ST over Arm of Long Br in Nodaway County, Missouri. It was built in 2019, so it is 6 years old, younger 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 6 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 40 by 2044. The structure is 46 ft (14 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries230th ST
CrossesArm of Long Br
LocationS 33 T 65 N R 34 W
RouteCounty Highway 40
Coordinates40.38701, -94.73089
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.7 US tons
Inventory rating25.8 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span45 ft (13.6 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic40 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 230th ST over Arm of Long Br built?

It was built in 2019, making it 6 years old in 2025.

What condition is 230th ST over Arm of Long Br 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 January 2025.

How much traffic does 230th ST over Arm of Long Br carry?

About 35 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 230th ST over Arm of Long Br?

The structure is 46 ft (14 m) long with a longest span of 45 ft (13.6 m) and a deck 26 ft wide.

Who owns 230th ST over Arm of Long Br?

It is owned by the County Highway Agency.