US Bridges

Mo 15 S over Wyaconda Rvr

Good

Scotland County, Missouri · S 19 T 66 N R 11 W · Structure no. 36555

Built
2021
4 years old
Condition
Good
inspected January 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
266 ft
3 main spans
Daily traffic
2,003
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 15 S over Wyaconda Rvr is a prestressed concrete continuous tee beam carrying Mo 15 S over Wyaconda Rvr in Scotland County, Missouri. It was built in 2021, so it is 4 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 2,003 vehicles a day, roughly 22% of them trucks, projected to reach 3,105 by 2044. The structure is 266 ft (81.2 m) long and 31 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesMo 15 S
CrossesWyaconda Rvr
LocationS 19 T 66 N R 11 W
RouteState Highway 15
Coordinates40.52119, -92.16181
Functional classRural Minor Arterial

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.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating34.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length266 ft (81.2 m)
Longest span90 ft (27.4 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,003 (2024)
Projected traffic3,105 by 2044
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Mo 15 S over Wyaconda Rvr built?

It was built in 2021, making it 4 years old in 2025.

What condition is Mo 15 S over Wyaconda Rvr 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 January 2024.

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

About 2,003 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is Mo 15 S over Wyaconda Rvr?

The structure is 266 ft (81.2 m) long with a longest span of 90 ft (27.4 m) and a deck 31 ft wide.

Who owns Mo 15 S over Wyaconda Rvr?

It is owned by the State Highway Agency.