US Bridges

FAU6370 Irelandgro over 100YR Flood Plane

Good

McLean County, Illinois · 1.0 MI E. 150 & 55 · Structure no. 057632900000000

Built
1991
34 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
39 ft
4 main spans
Daily traffic
4,750
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU6370 Irelandgro over 100YR Flood Plane is a concrete culvert carrying FAU6370 Irelandgro over 100YR Flood Plane in McLean County, Illinois. It was built in 1991, so it is 34 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,750 vehicles a day, roughly 4% of them trucks, projected to reach 3,838 by 2046. The structure is 39 ft (11.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFAU6370 Irelandgro
Crosses100YR Flood Plane
Location1.0 MI E. 150 & 55
Coordinates40.45893, -88.94782
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length39 ft (11.8 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,750 (2024)
Projected traffic3,838 by 2046
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 FAU6370 Irelandgro over 100YR Flood Plane built?

It was built in 1991, making it 34 years old in 2025.

What condition is FAU6370 Irelandgro over 100YR Flood Plane in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2023.

How much traffic does FAU6370 Irelandgro over 100YR Flood Plane carry?

About 4,750 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is FAU6370 Irelandgro over 100YR Flood Plane?

The structure is 39 ft (11.8 m) long with a longest span of 8 ft (2.4 m).

Who owns FAU6370 Irelandgro over 100YR Flood Plane?

It is owned by the City or Municipal Highway Agency.