US Bridges

TR 54 over I-72

Fair

Piatt County, Illinois · .5 MI NW Monticello · Structure no. 074006600000000

Built
1975
50 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
377 ft
2 main spans
Daily traffic
450
2020 count
Owner
State
State Highway Agency

About this bridge

TR 54 over I-72 is a steel continuous stringer/multi-beam or girder carrying TR 54 over I-72 in Piatt County, Illinois. It was built in 1975, 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 450 vehicles a day, roughly 1% of them trucks, projected to reach 455 by 2046. The structure is 377 ft (114.8 m) long and 32 ft wide.

Location

Open in Google Maps
CarriesTR 54
CrossesI-72
Location.5 MI NW Monticello
RouteCounty Highway 0
CountyPiatt County
StateIllinois
Coordinates40.043, -88.58453
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 15
Structure length377 ft (114.8 m)
Longest span153 ft (46.7 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2020)
Projected traffic455 by 2046
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 TR 54 over I-72 built?

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

What condition is TR 54 over I-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 November 2023.

How much traffic does TR 54 over I-72 carry?

About 450 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is TR 54 over I-72?

The structure is 377 ft (114.8 m) long with a longest span of 153 ft (46.7 m) and a deck 32 ft wide.

Who owns TR 54 over I-72?

It is owned by the State Highway Agency.