US Bridges

County RD 230 over Branch

FairPosted for load

Marion County, Missouri · S 29 T 52 N R 6 W · Structure no. 17936

Built
1925
100 years old
Condition
Fair
inspected February 2023
Type
Girder and Floorbeam System
Steel
Length
43 ft
1 main span
Daily traffic
80
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 230 over Branch is a steel girder and floorbeam system carrying County RD 230 over Branch in Marion County, Missouri. It was built in 1925, so it is 100 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. Its operating status is: posted for load restriction.

It carries about 80 vehicles a day, roughly 10% of them trucks, projected to reach 100 by 2043. The structure is 43 ft (13.1 m) long and 17 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCounty RD 230
CrossesBranch
LocationS 29 T 52 N R 6 W
RouteCounty Highway 167
CountyMarion County
StateMissouri
Coordinates39.80006, -91.59611
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating11.9 US tons
Inventory rating6 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length43 ft (13.1 m)
Longest span39 ft (11.9 m)
Deck width17 ft (5.2 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2023)
Projected traffic100 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$366,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 230 over Branch built?

It was built in 1925, making it 100 years old in 2025.

What condition is County RD 230 over Branch 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 February 2023.

How much traffic does County RD 230 over Branch carry?

About 80 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 230 over Branch?

The structure is 43 ft (13.1 m) long with a longest span of 39 ft (11.9 m) and a deck 17 ft wide.

Who owns County RD 230 over Branch?

It is owned by the County Highway Agency.