US Bridges

Il 61 over Flour Creek

Fair

Hancock County, Illinois · 2.8M E Il 94 Bowen · Structure no. 034000600000000

Built
1927
98 years old, rebuilt 1981
Condition
Fair
inspected January 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
59 ft
1 main span
Daily traffic
1,250
2023 count
Owner
State
State Highway Agency

About this bridge

Il 61 over Flour Creek is a prestressed concrete box beam or girders - multiple carrying Il 61 over Flour Creek in Hancock County, Illinois. It was built in 1927 and reconstructed in 1981, so it is 98 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,250 vehicles a day, roughly 9% of them trucks, projected to reach 1,364 by 2046. The structure is 59 ft (18.1 m) long and 33 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesIl 61
CrossesFlour Creek
Location2.8M E Il 94 Bowen
RouteState Highway 61
CountyHancock County
StateIllinois
Coordinates40.23102, -91.01067
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating39.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length59 ft (18.1 m)
Longest span56 ft (17.2 m)
Deck width33 ft (10.2 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,250 (2023)
Projected traffic1,364 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 61 over Flour Creek built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1981.

What condition is Il 61 over Flour Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does Il 61 over Flour Creek carry?

About 1,250 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Il 61 over Flour Creek?

The structure is 59 ft (18.1 m) long with a longest span of 56 ft (17.2 m) and a deck 33 ft wide.

Who owns Il 61 over Flour Creek?

It is owned by the State Highway Agency.