US Bridges

W ST Anthony/Tr 42 over I-172

Fair

Adams County, Illinois · 1.8M N Il 96 · Structure no. 001004500000000

Built
1976
49 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
263 ft
2 main spans
Daily traffic
550
2024 count
Owner
State
State Highway Agency

About this bridge

W ST Anthony/Tr 42 over I-172 is a prestressed concrete stringer/multi-beam or girder carrying W ST Anthony/Tr 42 over I-172 in Adams County, Illinois. It was built in 1976, so it is 49 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 550 vehicles a day, roughly 30% of them trucks, projected to reach 505 by 2046. The structure is 263 ft (80.2 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesW ST Anthony/Tr 42
CrossesI-172
Location1.8M N Il 96
RouteCounty Highway 0
CountyAdams County
StateIllinois
Coordinates39.90466, -91.32435
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2025
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 alignment6: Equal to present minimum criteria
Operating rating52.5 US tons
Inventory rating31.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 15
Structure length263 ft (80.2 m)
Longest span109 ft (33.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2024)
Projected traffic505 by 2046
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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 W ST Anthony/Tr 42 over I-172 built?

It was built in 1976, making it 49 years old in 2025.

What condition is W ST Anthony/Tr 42 over I-172 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 February 2025.

How much traffic does W ST Anthony/Tr 42 over I-172 carry?

About 550 vehicles per day (2024 count), of which roughly 30% are trucks.

How long is W ST Anthony/Tr 42 over I-172?

The structure is 263 ft (80.2 m) long with a longest span of 109 ft (33.2 m) and a deck 30 ft wide.

Who owns W ST Anthony/Tr 42 over I-172?

It is owned by the State Highway Agency.