US Bridges

Il 96 over Riley CR

Good

Hancock County, Illinois · 3.3 M S of Nauvoo · Structure no. 034252500000000

Built
2011
14 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
1,050
2023 count
Owner
State
State Highway Agency

About this bridge

Il 96 over Riley CR is a concrete culvert carrying Il 96 over Riley CR in Hancock County, Illinois. It was built in 2011, so it is 14 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,050 vehicles a day, roughly 7% of them trucks, projected to reach 1,263 by 2046. The structure is 26 ft (7.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIl 96
CrossesRiley CR
Location3.3 M S of Nauvoo
RouteState Highway 96
CountyHancock County
StateIllinois
Coordinates40.5123, -91.35902
Functional classRural 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.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.4 US tons
Inventory rating53.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span8 ft (2.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,050 (2023)
Projected traffic1,263 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 96 over Riley CR built?

It was built in 2011, making it 14 years old in 2025.

What condition is Il 96 over Riley 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 November 2021.

How much traffic does Il 96 over Riley CR carry?

About 1,050 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Il 96 over Riley CR?

The structure is 26 ft (7.8 m) long with a longest span of 8 ft (2.5 m).

Who owns Il 96 over Riley CR?

It is owned by the State Highway Agency.