US Bridges

Mo 11 S over N Fk S Fabius Rvr

FairPosted for load

Knox County, Missouri · S 28 T 63 N R 12 W · Structure no. 8705

Built
1932
93 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
150 ft
3 main spans
Daily traffic
568
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 11 S over N Fk S Fabius Rvr is a steel stringer/multi-beam or girder carrying Mo 11 S over N Fk S Fabius Rvr in Knox County, Missouri. It was built in 1932, so it is 93 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 568 vehicles a day, roughly 18% of them trucks, projected to reach 824 by 2044. The structure is 150 ft (45.7 m) long and 21 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesMo 11 S
CrossesN Fk S Fabius Rvr
LocationS 28 T 63 N R 12 W
RouteState Highway 11
Coordinates40.24211, -92.24304
Functional classRural Major Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
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 alignment6: Equal to present minimum criteria
Operating rating18.8 US tons
Inventory rating8.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 10
Structure length150 ft (45.7 m)
Longest span49 ft (14.9 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic568 (2024)
Projected traffic824 by 2044
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.6 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 11 S over N Fk S Fabius Rvr built?

It was built in 1932, making it 93 years old in 2025.

What condition is Mo 11 S over N Fk S Fabius 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 November 2023.

How much traffic does Mo 11 S over N Fk S Fabius Rvr carry?

About 568 vehicles per day (2024 count), of which roughly 18% are trucks.

How long is Mo 11 S over N Fk S Fabius Rvr?

The structure is 150 ft (45.7 m) long with a longest span of 49 ft (14.9 m) and a deck 21 ft wide.

Who owns Mo 11 S over N Fk S Fabius Rvr?

It is owned by the State Highway Agency.