US Bridges

Mo 15 S over Skull Lick CR

Good

Audrain County, Missouri · S 3 T 51 N R 9 W · Structure no. 31533

Built
2006
19 years old
Condition
Good
inspected October 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
183 ft
3 main spans
Daily traffic
2,998
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 15 S over Skull Lick CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Mo 15 S over Skull Lick CR in Audrain County, Missouri. It was built in 2006, so it is 19 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,998 vehicles a day, roughly 14% of them trucks, projected to reach 4,647 by 2044. The structure is 183 ft (55.8 m) long and 39 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesMo 15 S
CrossesSkull Lick CR
LocationS 3 T 51 N R 9 W
RouteState Highway 15
Coordinates39.22797, -91.90665
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
Deck7 GoodSome minor problems.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.3 US tons
Inventory rating43.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length183 ft (55.8 m)
Longest span63 ft (19.3 m)
Deck width39 ft (11.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,998 (2024)
Projected traffic4,647 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Skull Lick CR built?

It was built in 2006, making it 19 years old in 2025.

What condition is Mo 15 S over Skull Lick CR 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 October 2021.

How much traffic does Mo 15 S over Skull Lick CR carry?

About 2,998 vehicles per day (2024 count), of which roughly 14% are trucks.

How long is Mo 15 S over Skull Lick CR?

The structure is 183 ft (55.8 m) long with a longest span of 63 ft (19.3 m) and a deck 39 ft wide.

Who owns Mo 15 S over Skull Lick CR?

It is owned by the State Highway Agency.