US Bridges

Mo 185 S over BNSF RR

Good

Franklin County, Missouri · S 9 T 40 N R 2 W · Structure no. 30295

Built
2003
22 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
253 ft
3 main spans
Daily traffic
5,822
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 185 S over BNSF RR is a steel continuous stringer/multi-beam or girder carrying Mo 185 S over BNSF RR in Franklin County, Missouri. It was built in 2003, so it is 22 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 5,822 vehicles a day, roughly 6% of them trucks, projected to reach 11,062 by 2044. The structure is 253 ft (77.1 m) long and 47 ft wide. If it were closed, the detour would be 36 mi (58 km).

CarriesMo 185 S
CrossesBNSF RR
LocationS 9 T 40 N R 2 W
RouteState Highway 185
Coordinates38.22278, -91.14616
Functional classUrban Collector

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.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating40.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length253 ft (77.1 m)
Longest span120 ft (36.6 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,822 (2024)
Projected traffic11,062 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed36 mi (58 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mo 185 S over BNSF RR built?

It was built in 2003, making it 22 years old in 2025.

What condition is Mo 185 S over BNSF RR 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 2023.

How much traffic does Mo 185 S over BNSF RR carry?

About 5,822 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Mo 185 S over BNSF RR?

The structure is 253 ft (77.1 m) long with a longest span of 120 ft (36.6 m) and a deck 47 ft wide.

Who owns Mo 185 S over BNSF RR?

It is owned by the State Highway Agency.