US Bridges

Avalon Ave over Little Medicine CR

FairPosted for load

Mercer County, Missouri · S 6 T 66 N R 22 W · Structure no. 16157

Built
1936
89 years old, rebuilt 2006
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
22 ft
1 main span
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

Avalon Ave over Little Medicine CR is a steel stringer/multi-beam or girder carrying Avalon Ave over Little Medicine CR in Mercer County, Missouri. It was built in 1936 and reconstructed in 2006, so it is 89 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 39 by 2044. The structure is 22 ft (6.7 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesAvalon Ave
CrossesLittle Medicine CR
LocationS 6 T 66 N R 22 W
RouteCounty Highway 112
CountyMercer County
StateMissouri
Coordinates40.55982, -93.42717
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.
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 inspectionDecember 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 alignment6: Equal to present minimum criteria
Operating rating17.9 US tons
Inventory rating10.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span21 ft (6.4 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic39 by 2044
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$239,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Avalon Ave over Little Medicine CR built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 2006.

What condition is Avalon Ave over Little Medicine CR 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 December 2023.

How much traffic does Avalon Ave over Little Medicine CR carry?

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

How long is Avalon Ave over Little Medicine CR?

The structure is 22 ft (6.7 m) long with a longest span of 21 ft (6.4 m) and a deck 16 ft wide.

Who owns Avalon Ave over Little Medicine CR?

It is owned by the County Highway Agency.