US Bridges

Mo 15 S over Tobin CR

Fair

Scotland County, Missouri · S 2 T 64 N R 12 W · Structure no. 3582

Built
1985
40 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
109 ft
3 main spans
Daily traffic
171
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 15 S over Tobin CR is a prestressed concrete continuous tee beam carrying Mo 15 S over Tobin CR in Scotland County, Missouri. It was built in 1985, so it is 40 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 171 vehicles a day, roughly 12% of them trucks, projected to reach 265 by 2044. The structure is 109 ft (33.2 m) long and 35 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

CarriesMo 15 S
CrossesTobin CR
LocationS 2 T 64 N R 12 W
RouteState Highway 15
Coordinates40.37718, -92.20873
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.6 US tons
Inventory rating42.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length109 ft (33.2 m)
Longest span41 ft (12.6 m)
Deck width35 ft (10.8 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic171 (2024)
Projected traffic265 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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 Tobin CR built?

It was built in 1985, making it 40 years old in 2025.

What condition is Mo 15 S over Tobin CR 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 October 2024.

How much traffic does Mo 15 S over Tobin CR carry?

About 171 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Mo 15 S over Tobin CR?

The structure is 109 ft (33.2 m) long with a longest span of 41 ft (12.6 m) and a deck 35 ft wide.

Who owns Mo 15 S over Tobin CR?

It is owned by the State Highway Agency.