US Bridges

Horse Farm Rd. over I-55

Fair

Sangamon County, Illinois · 1.8M N Il 104 · Structure no. 084011100000000

Built
1972
53 years old, rebuilt 1979
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
289 ft
2 main spans
Daily traffic
800
2023 count
Owner
State
State Highway Agency

About this bridge

Horse Farm Rd. over I-55 is a steel continuous stringer/multi-beam or girder carrying Horse Farm Rd. over I-55 in Sangamon County, Illinois. It was built in 1972 and reconstructed in 1979, so it is 53 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 800 vehicles a day, roughly 7% of them trucks, projected to reach 859 by 2046. The structure is 289 ft (88 m) long and 62 ft wide.

Location

Open in Google Maps
CarriesHorse Farm Rd.
CrossesI-55
Location1.8M N Il 104
CountySangamon County
StateIllinois
Coordinates39.61606, -89.64741
Functional classRural Minor 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.8 US tons
Inventory rating58.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length289 ft (88 m)
Longest span109 ft (33.2 m)
Deck width62 ft (18.9 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2023)
Projected traffic859 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 Horse Farm Rd. over I-55 built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 1979.

What condition is Horse Farm Rd. over I-55 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 January 2024.

How much traffic does Horse Farm Rd. over I-55 carry?

About 800 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Horse Farm Rd. over I-55?

The structure is 289 ft (88 m) long with a longest span of 109 ft (33.2 m) and a deck 62 ft wide.

Who owns Horse Farm Rd. over I-55?

It is owned by the State Highway Agency.