US Bridges

I-55 and Frs over Horse Creek

Fair

Montgomery County, Illinois · 3.8M N IL127 · Structure no. 068201300000000

Built
1950
75 years old, rebuilt 1972
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
38 ft
2 main spans
Daily traffic
29,350
2021 count
Owner
State
State Highway Agency

About this bridge

I-55 and Frs over Horse Creek is a concrete culvert carrying I-55 and Frs over Horse Creek in Montgomery County, Illinois. It was built in 1950 and reconstructed in 1972, so it is 75 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 29,350 vehicles a day, roughly 27% of them trucks, projected to reach 31,520 by 2046. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-55 and Frs
CrossesHorse Creek
Location3.8M N IL127
RouteInterstate 55
Coordinates39.37514, -89.64276
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating68.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span16 ft (5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,350 (2021)
Projected traffic31,520 by 2046
Trucks27%
Lanes on structure12
Traffic directionTwo-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 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 I-55 and Frs over Horse Creek built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1972.

What condition is I-55 and Frs over Horse Creek 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 April 2024.

How much traffic does I-55 and Frs over Horse Creek carry?

About 29,350 vehicles per day (2021 count), of which roughly 27% are trucks.

How long is I-55 and Frs over Horse Creek?

The structure is 38 ft (11.6 m) long with a longest span of 16 ft (5 m).

Who owns I-55 and Frs over Horse Creek?

It is owned by the State Highway Agency.