US Bridges

Il 100 over Crawford Creek

Good

Calhoun County, Illinois · 8.1 MI N Hardin · Structure no. 007002700000000

Built
2009
16 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
116 ft
3 main spans
Daily traffic
1,250
2023 count
Owner
State
State Highway Agency

About this bridge

Il 100 over Crawford Creek is a steel continuous stringer/multi-beam or girder carrying Il 100 over Crawford Creek in Calhoun County, Illinois. It was built in 2009, so it is 16 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 1,250 vehicles a day, roughly 12% of them trucks, projected to reach 1,313 by 2046. The structure is 116 ft (35.4 m) long and 36 ft wide. If it were closed, the detour would be 29.2 mi (47 km).

Location

Open in Google Maps
CarriesIl 100
CrossesCrawford Creek
Location8.1 MI N Hardin
RouteState Highway 100
CountyCalhoun County
StateIllinois
Coordinates39.28122, -90.60975
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating71.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length116 ft (35.4 m)
Longest span46 ft (14 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,250 (2023)
Projected traffic1,313 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.2 mi (47 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 100 over Crawford Creek built?

It was built in 2009, making it 16 years old in 2025.

What condition is Il 100 over Crawford Creek 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 February 2023.

How much traffic does Il 100 over Crawford Creek carry?

About 1,250 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Il 100 over Crawford Creek?

The structure is 116 ft (35.4 m) long with a longest span of 46 ft (14 m) and a deck 36 ft wide.

Who owns Il 100 over Crawford Creek?

It is owned by the State Highway Agency.