US Bridges

Is 55 S over Tyler Br

Good

Perry County, Missouri · S 36 T 35 N R 10 E · Structure no. 2156

Built
1971
54 years old, rebuilt 1984
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
211 ft
3 main spans
Daily traffic
9,274
2024 count
Owner
State
State Highway Agency

About this bridge

Is 55 S over Tyler Br is a steel continuous stringer/multi-beam or girder carrying Is 55 S over Tyler Br in Perry County, Missouri. It was built in 1971 and reconstructed in 1984, so it is 54 years old, older 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 9,274 vehicles a day, roughly 22% of them trucks, projected to reach 17,621 by 2044. The structure is 211 ft (64.3 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIs 55 S
CrossesTyler Br
LocationS 36 T 35 N R 10 E
RouteInterstate 55
Coordinates37.69636, -89.88085
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating34.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length211 ft (64.3 m)
Longest span82 ft (25 m)
Deck width41 ft (12.4 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,274 (2024)
Projected traffic17,621 by 2044
Trucks22%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 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 Is 55 S over Tyler Br built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 1984.

What condition is Is 55 S over Tyler Br 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 Is 55 S over Tyler Br carry?

About 9,274 vehicles per day (2024 count), of which roughly 22% are trucks.

How long is Is 55 S over Tyler Br?

The structure is 211 ft (64.3 m) long with a longest span of 82 ft (25 m) and a deck 41 ft wide.

Who owns Is 55 S over Tyler Br?

It is owned by the State Highway Agency.