US Bridges

Il 81 over Bnrr

Good

Henry County, Illinois · .05MI E of Bengston · Structure no. 037019700000000

Built
2016
9 years old
Condition
Good
inspected December 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
61 ft
1 main span
Daily traffic
1,900
2023 count
Owner
State
State Highway Agency

About this bridge

Il 81 over Bnrr is a prestressed concrete box beam or girders - multiple carrying Il 81 over Bnrr in Henry County, Illinois. It was built in 2016, so it is 9 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 1,900 vehicles a day, roughly 15% of them trucks, projected to reach 1,890 by 2046. The structure is 61 ft (18.6 m) long and 48 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesIl 81
CrossesBnrr
Location.05MI E of Bengston
RouteState Highway 81
Coordinates41.29572, -90.36092
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating47.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length61 ft (18.6 m)
Longest span58 ft (17.7 m)
Deck width48 ft (14.7 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2023)
Projected traffic1,890 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed18 mi (29 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 81 over Bnrr built?

It was built in 2016, making it 9 years old in 2025.

What condition is Il 81 over Bnrr 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 2022.

How much traffic does Il 81 over Bnrr carry?

About 1,900 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Il 81 over Bnrr?

The structure is 61 ft (18.6 m) long with a longest span of 58 ft (17.7 m) and a deck 48 ft wide.

Who owns Il 81 over Bnrr?

It is owned by the State Highway Agency.