US Bridges

Academy Ave. over Br of Mussel Fk

Good

Macon County, Missouri · S 7 T 60 N R 17 W · Structure no. 12153

Built
1993
32 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

Academy Ave. over Br of Mussel Fk is a steel stringer/multi-beam or girder carrying Academy Ave. over Br of Mussel Fk in Macon County, Missouri. It was built in 1993, so it is 32 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, roughly 10% of them trucks, projected to reach 11 by 2044. The structure is 55 ft (16.8 m) long and 18 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesAcademy Ave.
CrossesBr of Mussel Fk
LocationS 7 T 60 N R 17 W
RouteCounty Highway 1
CountyMacon County
StateMissouri
Coordinates40.03258, -92.83388
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.6 US tons
Inventory rating25.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length55 ft (16.8 m)
Longest span53 ft (16.2 m)
Deck width18 ft (5.4 m)
Roadway width17 ft (5.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic11 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Academy Ave. over Br of Mussel Fk built?

It was built in 1993, making it 32 years old in 2025.

What condition is Academy Ave. over Br of Mussel Fk in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2024.

How much traffic does Academy Ave. over Br of Mussel Fk carry?

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

How long is Academy Ave. over Br of Mussel Fk?

The structure is 55 ft (16.8 m) long with a longest span of 53 ft (16.2 m) and a deck 18 ft wide.

Who owns Academy Ave. over Br of Mussel Fk?

It is owned by the County Highway Agency.