US Bridges

Mo 15 S over Davis Fk Salt Rvr

Good

Audrain County, Missouri · S 23 T 51 N R 9 W · Structure no. 29097

Built
2001
24 years old
Condition
Good
inspected October 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
196 ft
3 main spans
Daily traffic
2,998
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 15 S over Davis Fk Salt Rvr is a prestressed concrete continuous stringer/multi-beam or girder carrying Mo 15 S over Davis Fk Salt Rvr in Audrain County, Missouri. It was built in 2001, so it is 24 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 196 ft (59.7 m) long and 43 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

CarriesMo 15 S
CrossesDavis Fk Salt Rvr
LocationS 23 T 51 N R 9 W
RouteState Highway 15
Coordinates39.18561, -91.89119
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.3 US tons
Inventory rating48.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length196 ft (59.7 m)
Longest span75 ft (22.9 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 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 closed24.9 mi (40 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 Davis Fk Salt Rvr built?

It was built in 2001, making it 24 years old in 2025.

What condition is Mo 15 S over Davis Fk Salt 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 October 2021.

How much traffic does Mo 15 S over Davis Fk Salt Rvr carry?

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

How long is Mo 15 S over Davis Fk Salt Rvr?

The structure is 196 ft (59.7 m) long with a longest span of 75 ft (22.9 m) and a deck 43 ft wide.

Who owns Mo 15 S over Davis Fk Salt Rvr?

It is owned by the State Highway Agency.