US Bridges

County Road 341 over Br of Grand Rvr

FairPosted for load

Carroll County, Missouri · S 13 T 54 N R 22 W · Structure no. 20998

Built
1940
85 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

County Road 341 over Br of Grand Rvr is a steel stringer/multi-beam or girder carrying County Road 341 over Br of Grand Rvr in Carroll County, Missouri. It was built in 1940, so it is 85 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 6 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 22 by 2044. The structure is 38 ft (11.6 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty Road 341
CrossesBr of Grand Rvr
LocationS 13 T 54 N R 22 W
RouteCounty Highway 284
CountyCarroll County
StateMissouri
Coordinates39.48708, -93.30996
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating26.8 US tons
Inventory rating14.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length38 ft (11.6 m)
Longest span38 ft (11.6 m)
Deck width16 ft (5 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic22 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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$223,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 341 over Br of Grand Rvr built?

It was built in 1940, making it 85 years old in 2025.

What condition is County Road 341 over Br of Grand Rvr 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 2024.

How much traffic does County Road 341 over Br of Grand Rvr carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County Road 341 over Br of Grand Rvr?

The structure is 38 ft (11.6 m) long with a longest span of 38 ft (11.6 m) and a deck 16 ft wide.

Who owns County Road 341 over Br of Grand Rvr?

It is owned by the County Highway Agency.