US Bridges

FAU-6011 (1st Ave. over First Creek

Good

LaSalle County, Illinois · 1st Ave & 9th St. · Structure no. 050701600000000

Built
2018
7 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete Continuous
Length
35 ft
2 main spans
Daily traffic
1,100
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU-6011 (1st Ave. over First Creek is a concrete continuous culvert carrying FAU-6011 (1st Ave. over First Creek in LaSalle County, Illinois. It was built in 2018, so it is 7 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 1,100 vehicles a day, roughly 9% of them trucks, projected to reach 1,111 by 2046. The structure is 35 ft (10.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFAU-6011 (1st Ave.
CrossesFirst Creek
Location1st Ave & 9th St.
CountyLaSalle County
StateIllinois
Coordinates41.55167, -89.10859
Functional classUrban Collector

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 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.1 US tons
Inventory rating47.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length35 ft (10.6 m)
Longest span18 ft (5.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2020)
Projected traffic1,111 by 2046
Trucks9%
Lanes on structure2
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 FAU-6011 (1st Ave. over First Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is FAU-6011 (1st Ave. over First Creek 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 2024.

How much traffic does FAU-6011 (1st Ave. over First Creek carry?

About 1,100 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is FAU-6011 (1st Ave. over First Creek?

The structure is 35 ft (10.6 m) long with a longest span of 18 ft (5.5 m).

Who owns FAU-6011 (1st Ave. over First Creek?

It is owned by the City or Municipal Highway Agency.