US Bridges

Il 84 over Barber Creek

Good

Rock Island County, Illinois · S. Edge Port Byron · Structure no. 081203400000000

Built
1956
69 years old, rebuilt 1999
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
8,100
2023 count
Owner
State
State Highway Agency

About this bridge

Il 84 over Barber Creek is a concrete culvert carrying Il 84 over Barber Creek in Rock Island County, Illinois. It was built in 1956 and reconstructed in 1999, so it is 69 years old, older 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 8,100 vehicles a day, roughly 8% of them trucks, projected to reach 8,383 by 2046. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 18 mi (29 km).

CarriesIl 84
CrossesBarber Creek
LocationS. Edge Port Byron
RouteState Highway 84
Coordinates41.59398, -90.33546
Functional classUrban Other Principal 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length22 ft (6.8 m)
Longest span11 ft (3.3 m)
Deck width0 ft (0 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,100 (2023)
Projected traffic8,383 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Il 84 over Barber Creek built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1999.

What condition is Il 84 over Barber 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 2023.

How much traffic does Il 84 over Barber Creek carry?

About 8,100 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Il 84 over Barber Creek?

The structure is 22 ft (6.8 m) long with a longest span of 11 ft (3.3 m).

Who owns Il 84 over Barber Creek?

It is owned by the State Highway Agency.