US Bridges

Il 91 over Fargo Run

Fair

Peoria County, Illinois · 1 MI N of US 150 · Structure no. 072016100000000

Built
1995
30 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
7,950
2023 count
Owner
State
State Highway Agency

About this bridge

Il 91 over Fargo Run is a steel stringer/multi-beam or girder carrying Il 91 over Fargo Run in Peoria County, Illinois. It was built in 1995, so it is 30 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 7,950 vehicles a day, roughly 3% of them trucks, projected to reach 7,323 by 2046. The structure is 54 ft (16.5 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIl 91
CrossesFargo Run
Location1 MI N of US 150
RouteState Highway 91
Coordinates40.78622, -89.66961
Functional classUrban Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.2 US tons
Inventory rating56.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length54 ft (16.5 m)
Longest span54 ft (16.5 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,950 (2023)
Projected traffic7,323 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 91 over Fargo Run built?

It was built in 1995, making it 30 years old in 2025.

What condition is Il 91 over Fargo Run 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 2024.

How much traffic does Il 91 over Fargo Run carry?

About 7,950 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Il 91 over Fargo Run?

The structure is 54 ft (16.5 m) long with a longest span of 54 ft (16.5 m) and a deck 35 ft wide.

Who owns Il 91 over Fargo Run?

It is owned by the State Highway Agency.