US Bridges

Mo 15 S over N Fk Wyaconda Rvr

Fair

Scotland County, Missouri · S 31 T 67 N R 11 W · Structure no. 5161

Built
1929
96 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
1,367
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 15 S over N Fk Wyaconda Rvr is a concrete continuous culvert carrying Mo 15 S over N Fk Wyaconda Rvr in Scotland County, Missouri. It was built in 1929, so it is 96 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 1,367 vehicles a day, roughly 22% of them trucks, projected to reach 2,119 by 2044. The structure is 25 ft (7.7 m) long and 36 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

Location

Open in Google Maps
CarriesMo 15 S
CrossesN Fk Wyaconda Rvr
LocationS 31 T 67 N R 11 W
RouteState Highway 15
CountyScotland County
StateMissouri
Coordinates40.5752, -92.14965
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 alignment6: Equal to present minimum criteria
Operating rating54.6 US tons
Inventory rating32.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length25 ft (7.7 m)
Longest span10 ft (3 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,367 (2024)
Projected traffic2,119 by 2044
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 15 S over N Fk Wyaconda Rvr built?

It was built in 1929, making it 96 years old in 2025.

What condition is Mo 15 S over N Fk Wyaconda 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 November 2024.

How much traffic does Mo 15 S over N Fk Wyaconda Rvr carry?

About 1,367 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is Mo 15 S over N Fk Wyaconda Rvr?

The structure is 25 ft (7.7 m) long with a longest span of 10 ft (3 m) and a deck 36 ft wide.

Who owns Mo 15 S over N Fk Wyaconda Rvr?

It is owned by the State Highway Agency.