US Bridges

Afton Ave over Salt Fk

Good

Saline County, Missouri · S 30 T 51 N R 23 W · Structure no. 34951

Built
2015
10 years old
Condition
Good
inspected April 2024
Type
Tee Beam
Prestressed Concrete
Length
113 ft
1 main span
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

Afton Ave over Salt Fk is a prestressed concrete tee beam carrying Afton Ave over Salt Fk in Saline County, Missouri. It was built in 2015, so it is 10 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 35 vehicles a day, roughly 5% of them trucks, projected to reach 39 by 2044. The structure is 113 ft (34.3 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesAfton Ave
CrossesSalt Fk
LocationS 30 T 51 N R 23 W
RouteCounty Highway 78
Coordinates39.17986, -93.47322
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
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating47.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length113 ft (34.3 m)
Longest span110 ft (33.5 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic39 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byOther Local 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 Afton Ave over Salt Fk built?

It was built in 2015, making it 10 years old in 2025.

What condition is Afton Ave over Salt 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 April 2024.

How much traffic does Afton Ave over Salt Fk carry?

About 35 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Afton Ave over Salt Fk?

The structure is 113 ft (34.3 m) long with a longest span of 110 ft (33.5 m) and a deck 25 ft wide.

Who owns Afton Ave over Salt Fk?

It is owned by the County Highway Agency and maintained by the Other Local Agency.