US Bridges

Ill Route 84 over Sugar CR

Good

Rock Island County, Illinois · 1 MI N ILL92-E Molin · Structure no. 081200500000000

Built
1974
51 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
39 ft
3 main spans
Daily traffic
3,400
2023 count
Owner
State
State Highway Agency

About this bridge

Ill Route 84 over Sugar CR is a concrete culvert carrying Ill Route 84 over Sugar CR in Rock Island County, Illinois. It was built in 1974, so it is 51 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 3,400 vehicles a day, roughly 5% of them trucks, projected to reach 3,889 by 2046. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 8.1 mi (13 km).

CarriesIll Route 84
CrossesSugar CR
Location1 MI N ILL92-E Molin
RouteState Highway 84
Coordinates41.52875, -90.42551
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 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 rating88.2 US tons
Inventory rating52.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length39 ft (11.9 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,400 (2023)
Projected traffic3,889 by 2046
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Ill Route 84 over Sugar CR built?

It was built in 1974, making it 51 years old in 2025.

What condition is Ill Route 84 over Sugar CR 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 April 2024.

How much traffic does Ill Route 84 over Sugar CR carry?

About 3,400 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Ill Route 84 over Sugar CR?

The structure is 39 ft (11.9 m) long with a longest span of 13 ft (3.9 m).

Who owns Ill Route 84 over Sugar CR?

It is owned by the State Highway Agency.