US Bridges

Il 72 FAP 553 over S Br Kishwaukee Riv.

Fair

DeKalb County, Illinois · W Edge Genoa · Structure no. 019002600000000

Built
1931
94 years old, rebuilt 1987
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
230 ft
5 main spans
Daily traffic
6,000
2023 count
Owner
State
State Highway Agency

About this bridge

Il 72 FAP 553 over S Br Kishwaukee Riv. is a steel continuous stringer/multi-beam or girder carrying Il 72 FAP 553 over S Br Kishwaukee Riv. in DeKalb County, Illinois. It was built in 1931 and reconstructed in 1987, so it is 94 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 6,000 vehicles a day, roughly 8% of them trucks, projected to reach 6,328 by 2046. The structure is 230 ft (70.1 m) long and 38 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

Location

Open in Google Maps
CarriesIl 72 FAP 553
CrossesS Br Kishwaukee Riv.
LocationW Edge Genoa
RouteState Highway 72
CountyDeKalb County
StateIllinois
Coordinates42.09783, -88.70528
Functional classUrban 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
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 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 rating62.5 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length230 ft (70.1 m)
Longest span58 ft (17.7 m)
Deck width38 ft (11.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2023)
Projected traffic6,328 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.8 mi (56 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 72 FAP 553 over S Br Kishwaukee Riv. built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1987.

What condition is Il 72 FAP 553 over S Br Kishwaukee Riv. 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 March 2023.

How much traffic does Il 72 FAP 553 over S Br Kishwaukee Riv. carry?

About 6,000 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Il 72 FAP 553 over S Br Kishwaukee Riv.?

The structure is 230 ft (70.1 m) long with a longest span of 58 ft (17.7 m) and a deck 38 ft wide.

Who owns Il 72 FAP 553 over S Br Kishwaukee Riv.?

It is owned by the State Highway Agency.