US Bridges

Bus I72/OLD US 36 over FAI 72

Fair

Morgan County, Illinois · I72/BUS I72 Int #68 · Structure no. 069004400000000

Built
1975
50 years old, rebuilt 2003
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
326 ft
2 main spans
Daily traffic
6,800
2023 count
Owner
State
State Highway Agency

About this bridge

Bus I72/OLD US 36 over FAI 72 is a steel continuous stringer/multi-beam or girder carrying Bus I72/OLD US 36 over FAI 72 in Morgan County, Illinois. It was built in 1975 and reconstructed in 2003, so it is 50 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 6,800 vehicles a day, roughly 11% of them trucks, projected to reach 7,676 by 2046. The structure is 326 ft (99.3 m) long and 92 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesBus I72/OLD US 36
CrossesFAI 72
LocationI72/BUS I72 Int #68
RouteInterstate 72
CountyMorgan County
StateIllinois
Coordinates39.72301, -90.16822
Functional classUrban Other Principal Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
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 rating91.4 US tons
Inventory rating54.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length326 ft (99.3 m)
Longest span125 ft (38.1 m)
Deck width92 ft (28 m)
Roadway width71 ft (21.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,800 (2023)
Projected traffic7,676 by 2046
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Bus I72/OLD US 36 over FAI 72 built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2003.

What condition is Bus I72/OLD US 36 over FAI 72 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 Bus I72/OLD US 36 over FAI 72 carry?

About 6,800 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Bus I72/OLD US 36 over FAI 72?

The structure is 326 ft (99.3 m) long with a longest span of 125 ft (38.1 m) and a deck 92 ft wide.

Who owns Bus I72/OLD US 36 over FAI 72?

It is owned by the State Highway Agency.