US Bridges

NB I-155 over Tp&w RR (004909R)

Fair

Tazewell County, Illinois · .3 MI N of Ill 98 · Structure no. 090012500000000

Built
1988
37 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
144 ft
3 main spans
Daily traffic
11,400
2023 count
Owner
State
State Highway Agency

About this bridge

NB I-155 over Tp&w RR (004909R) is a steel continuous stringer/multi-beam or girder carrying NB I-155 over Tp&w RR (004909R) in Tazewell County, Illinois. It was built in 1988, so it is 37 years old, younger 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 5 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 11,400 vehicles a day, roughly 14% of them trucks, projected to reach 10,908 by 2046. The structure is 144 ft (43.8 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNB I-155
CrossesTp&w RR (004909R)
Location.3 MI N of Ill 98
RouteInterstate 155
CountyTazewell County
StateIllinois
Coordinates40.60808, -89.4783
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.4 US tons
Inventory rating51.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length144 ft (43.8 m)
Longest span51 ft (15.6 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,400 (2023)
Projected traffic10,908 by 2046
Trucks14%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NB I-155 over Tp&w RR (004909R) built?

It was built in 1988, making it 37 years old in 2025.

What condition is NB I-155 over Tp&w RR (004909R) 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 NB I-155 over Tp&w RR (004909R) carry?

About 11,400 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is NB I-155 over Tp&w RR (004909R)?

The structure is 144 ft (43.8 m) long with a longest span of 51 ft (15.6 m) and a deck 43 ft wide.

Who owns NB I-155 over Tp&w RR (004909R)?

It is owned by the State Highway Agency.