US Bridges

Is 55 S over Ramsey CR

Good

Scott County, Missouri · S 17 T 29 N R 14 E · Structure no. 35582

Built
2017
8 years old
Condition
Good
inspected February 2025
Type
Tee Beam
Prestressed Concrete
Length
162 ft
2 main spans
Daily traffic
14,190
2024 count
Owner
State
State Highway Agency

About this bridge

Is 55 S over Ramsey CR is a prestressed concrete tee beam carrying Is 55 S over Ramsey CR in Scott County, Missouri. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,190 vehicles a day, roughly 31% of them trucks, projected to reach 26,961 by 2044. The structure is 162 ft (49.4 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIs 55 S
CrossesRamsey CR
LocationS 17 T 29 N R 14 E
RouteInterstate 55
Coordinates37.17883, -89.53741
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating39.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length162 ft (49.4 m)
Longest span89 ft (27.1 m)
Deck width49 ft (14.8 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,190 (2024)
Projected traffic26,961 by 2044
Trucks31%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Is 55 S over Ramsey CR built?

It was built in 2017, making it 8 years old in 2025.

What condition is Is 55 S over Ramsey 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 February 2025.

How much traffic does Is 55 S over Ramsey CR carry?

About 14,190 vehicles per day (2024 count), of which roughly 31% are trucks.

How long is Is 55 S over Ramsey CR?

The structure is 162 ft (49.4 m) long with a longest span of 89 ft (27.1 m) and a deck 49 ft wide.

Who owns Is 55 S over Ramsey CR?

It is owned by the State Highway Agency.