US Bridges

SW 15th LN over Trib N Fk Spring R

Fair

Barton County, Missouri · S 22 T 31 N R 31 W · Structure no. 22320

Built
1950
75 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
28 ft
2 main spans
Daily traffic
25
2023 count
Owner
County
County Highway Agency

About this bridge

SW 15th LN over Trib N Fk Spring R is a concrete continuous slab carrying SW 15th LN over Trib N Fk Spring R in Barton County, Missouri. It was built in 1950, so it is 75 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.

It carries about 25 vehicles a day, roughly 10% of them trucks, projected to reach 35 by 2043. The structure is 28 ft (8.5 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSW 15th LN
CrossesTrib N Fk Spring R
LocationS 22 T 31 N R 31 W
RouteCounty Highway 350
CountyBarton County
StateMissouri
Coordinates37.42737, -94.32708
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.7 US tons
Inventory rating20.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length28 ft (8.5 m)
Longest span13 ft (4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic35 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SW 15th LN over Trib N Fk Spring R built?

It was built in 1950, making it 75 years old in 2025.

What condition is SW 15th LN over Trib N Fk Spring R 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 March 2023.

How much traffic does SW 15th LN over Trib N Fk Spring R carry?

About 25 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SW 15th LN over Trib N Fk Spring R?

The structure is 28 ft (8.5 m) long with a longest span of 13 ft (4 m) and a deck 26 ft wide.

Who owns SW 15th LN over Trib N Fk Spring R?

It is owned by the County Highway Agency.