US Bridges

Mo 15 S over BNSF RR

Fair

Knox County, Missouri · S 26 T 63 N R 12 W · Structure no. 4175

Built
1994
31 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
213 ft
3 main spans
Daily traffic
1,241
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 15 S over BNSF RR is a prestressed concrete stringer/multi-beam or girder carrying Mo 15 S over BNSF RR in Knox County, Missouri. It was built in 1994, so it is 31 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 1,241 vehicles a day, roughly 13% of them trucks, projected to reach 1,924 by 2044. The structure is 213 ft (64.9 m) long and 37 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesMo 15 S
CrossesBNSF RR
LocationS 26 T 63 N R 12 W
RouteState Highway 15
Coordinates40.23336, -92.21493
Functional classRural Minor Arterial

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.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.3 US tons
Inventory rating51.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length213 ft (64.9 m)
Longest span86 ft (26.2 m)
Deck width37 ft (11.4 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,241 (2024)
Projected traffic1,924 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mo 15 S over BNSF RR built?

It was built in 1994, making it 31 years old in 2025.

What condition is Mo 15 S over BNSF RR 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 November 2023.

How much traffic does Mo 15 S over BNSF RR carry?

About 1,241 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is Mo 15 S over BNSF RR?

The structure is 213 ft (64.9 m) long with a longest span of 86 ft (26.2 m) and a deck 37 ft wide.

Who owns Mo 15 S over BNSF RR?

It is owned by the State Highway Agency.