US Bridges

Alpine Ave over Trib to Mussel Fk

Fair

Macon County, Missouri · S 27 T 59 N R 17 W · Structure no. 12250

Built
2000
25 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
58 ft
1 main span
Daily traffic
10
2024 count
Owner
County
County Highway Agency

About this bridge

Alpine Ave over Trib to Mussel Fk is a steel stringer/multi-beam or girder carrying Alpine Ave over Trib to Mussel Fk in Macon County, Missouri. It was built in 2000, so it is 25 years old, younger 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.

It carries about 10 vehicles a day, roughly 10% of them trucks, projected to reach 11 by 2044. The structure is 58 ft (17.7 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesAlpine Ave
CrossesTrib to Mussel Fk
LocationS 27 T 59 N R 17 W
RouteCounty Highway 3
CountyMacon County
StateMissouri
Coordinates39.96109, -92.84883
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.
Superstructure7 GoodSome minor problems.
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 statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.3 US tons
Inventory rating53.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length58 ft (17.7 m)
Longest span56 ft (17.1 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2024)
Projected traffic11 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Alpine Ave over Trib to Mussel Fk built?

It was built in 2000, making it 25 years old in 2025.

What condition is Alpine Ave over Trib to Mussel Fk 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 Alpine Ave over Trib to Mussel Fk carry?

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

How long is Alpine Ave over Trib to Mussel Fk?

The structure is 58 ft (17.7 m) long with a longest span of 56 ft (17.1 m) and a deck 20 ft wide.

Who owns Alpine Ave over Trib to Mussel Fk?

It is owned by the County Highway Agency.