US Bridges

I-474 Rp# 461 over WB I-474

Poor

Tazewell County, Illinois · 3 MI NW of Morton · Structure no. 090011800000000

Built
1980
45 years old
Condition
Poor
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
390 ft
3 main spans
Daily traffic
450
2023 count
Owner
State
State Highway Agency

About this bridge

I-474 Rp# 461 over WB I-474 is a steel continuous stringer/multi-beam or girder carrying I-474 Rp# 461 over WB I-474 in Tazewell County, Illinois. It was built in 1980, so it is 45 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 450 vehicles a day, roughly 13% of them trucks, projected to reach 505 by 2046. The structure is 390 ft (118.9 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-474 Rp# 461
CrossesWB I-474
Location3 MI NW of Morton
CountyTazewell County
StateIllinois
Coordinates40.63412, -89.52854
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, 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 inspectionFebruary 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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.3 US tons
Inventory rating59.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length390 ft (118.9 m)
Longest span184 ft (56.1 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic450 (2023)
Projected traffic505 by 2046
Trucks13%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
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 I-474 Rp# 461 over WB I-474 built?

It was built in 1980, making it 45 years old in 2025.

What condition is I-474 Rp# 461 over WB I-474 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.

How much traffic does I-474 Rp# 461 over WB I-474 carry?

About 450 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is I-474 Rp# 461 over WB I-474?

The structure is 390 ft (118.9 m) long with a longest span of 184 ft (56.1 m) and a deck 33 ft wide.

Who owns I-474 Rp# 461 over WB I-474?

It is owned by the State Highway Agency.