US Bridges

Mo 185 S over Rock Fill RD E Merame

Fair

Franklin County, Missouri · S 13 T 40 N R 2 W · Structure no. 3270

Built
1984
41 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
542 ft
3 main spans
Daily traffic
2,273
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 185 S over Rock Fill RD E Merame is a steel continuous stringer/multi-beam or girder carrying Mo 185 S over Rock Fill RD E Merame in Franklin County, Missouri. It was built in 1984, so it is 41 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 5 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 2,273 vehicles a day, roughly 12% of them trucks, projected to reach 4,319 by 2044. The structure is 542 ft (165.2 m) long and 47 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesMo 185 S
CrossesRock Fill RD E Merame
LocationS 13 T 40 N R 2 W
RouteState Highway 185
CountyFranklin County
StateMissouri
Coordinates38.20776, -91.09382
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.6 US tons
Inventory rating33.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+4 approach)
Design loadHS 20
Structure length542 ft (165.2 m)
Longest span150 ft (45.7 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,273 (2024)
Projected traffic4,319 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 185 S over Rock Fill RD E Merame built?

It was built in 1984, making it 41 years old in 2025.

What condition is Mo 185 S over Rock Fill RD E Merame 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 2023.

How much traffic does Mo 185 S over Rock Fill RD E Merame carry?

About 2,273 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Mo 185 S over Rock Fill RD E Merame?

The structure is 542 ft (165.2 m) long with a longest span of 150 ft (45.7 m) and a deck 47 ft wide.

Who owns Mo 185 S over Rock Fill RD E Merame?

It is owned by the State Highway Agency.