US Bridges

FAU-8500 Baseliner over Unnamed Tributary

Good

Will County, Illinois · 0.4 M N of Arsenal · Structure no. 099992300000000

Built
2010
15 years old
Condition
Good
inspected December 2021
Type
Culvert
Concrete Continuous
Length
37 ft
3 main spans
Daily traffic
8,900
2023 count
Owner
Private
Private (other than railroad)

About this bridge

FAU-8500 Baseliner over Unnamed Tributary is a concrete continuous culvert carrying FAU-8500 Baseliner over Unnamed Tributary in Will County, Illinois. It was built in 2010, so it is 15 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 8,900 vehicles a day, roughly 75% of them trucks, projected to reach 13,104 by 2046. The structure is 37 ft (11.3 m) long.

CarriesFAU-8500 Baseliner
CrossesUnnamed Tributary
Location0.4 M N of Arsenal
Coordinates41.42704, -88.14653
Functional classUrban Local

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 inspectionDecember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
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 Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span12 ft (3.8 m)
Deck width0 ft (0 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,900 (2023)
Projected traffic13,104 by 2046
Trucks75%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerPrivate (other than railroad)
Maintained byPrivate (other than railroad)
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 FAU-8500 Baseliner over Unnamed Tributary built?

It was built in 2010, making it 15 years old in 2025.

What condition is FAU-8500 Baseliner over Unnamed Tributary 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 December 2021.

How much traffic does FAU-8500 Baseliner over Unnamed Tributary carry?

About 8,900 vehicles per day (2023 count), of which roughly 75% are trucks.

How long is FAU-8500 Baseliner over Unnamed Tributary?

The structure is 37 ft (11.3 m) long with a longest span of 12 ft (3.8 m).

Who owns FAU-8500 Baseliner over Unnamed Tributary?

It is owned by the Private (other than railroad).