US Bridges

Emerald ST over Chariton Rvr

Fair

Macon County, Missouri · S 28 T 59 N R 16 W · Structure no. 34213

Built
2012
13 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Prestressed Concrete
Length
285 ft
3 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

Emerald ST over Chariton Rvr is a prestressed concrete tee beam carrying Emerald ST over Chariton Rvr in Macon County, Missouri. It was built in 2012, so it is 13 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 50 vehicles a day, roughly 25% of them trucks, projected to reach 55 by 2044. The structure is 285 ft (86.9 m) long and 25 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesEmerald ST
CrossesChariton Rvr
LocationS 28 T 59 N R 16 W
RouteCounty Highway 332
CountyMacon County
StateMissouri
Coordinates39.895, -92.68778
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.
Substructure9 ExcellentNo problems noted.
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating65.5 US tons
Inventory rating38.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length285 ft (86.9 m)
Longest span126 ft (38.3 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic55 by 2044
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Emerald ST over Chariton Rvr built?

It was built in 2012, making it 13 years old in 2025.

What condition is Emerald ST over Chariton 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 Emerald ST over Chariton Rvr carry?

About 50 vehicles per day (2024 count), of which roughly 25% are trucks.

How long is Emerald ST over Chariton Rvr?

The structure is 285 ft (86.9 m) long with a longest span of 126 ft (38.3 m) and a deck 25 ft wide.

Who owns Emerald ST over Chariton Rvr?

It is owned by the County Highway Agency.