US Bridges

Shabbona Road over Big Indian Creek

Fair

DeKalb County, Illinois · 820N 350E · Structure no. 019305400000000

Built
2000
25 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
46 ft
1 main span
Daily traffic
800
2021 count
Owner
County
County Highway Agency

About this bridge

Shabbona Road over Big Indian Creek is a steel stringer/multi-beam or girder carrying Shabbona Road over Big Indian Creek in DeKalb County, Illinois. It was built in 2000, so it is 25 years old, younger 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 800 vehicles a day, roughly 9% of them trucks, projected to reach 896 by 2046. The structure is 46 ft (14 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesShabbona Road
CrossesBig Indian Creek
Location820N 350E
RouteCounty Highway 0
CountyDeKalb County
StateIllinois
Coordinates41.74949, -88.87708
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span43 ft (13 m)
Deck width34 ft (10.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2021)
Projected traffic896 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Shabbona Road over Big Indian Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Shabbona Road over Big Indian 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 2023.

How much traffic does Shabbona Road over Big Indian Creek carry?

About 800 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is Shabbona Road over Big Indian Creek?

The structure is 46 ft (14 m) long with a longest span of 43 ft (13 m) and a deck 34 ft wide.

Who owns Shabbona Road over Big Indian Creek?

It is owned by the County Highway Agency.