US Bridges

Il 164 over Cedar Creek

Fair

Warren County, Illinois · 1.51 MI NE of US 34 · Structure no. 094005200000000

Built
2017
8 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
205 ft
3 main spans
Daily traffic
1,500
2023 count
Owner
State
State Highway Agency

About this bridge

Il 164 over Cedar Creek is a steel continuous stringer/multi-beam or girder carrying Il 164 over Cedar Creek in Warren County, Illinois. It was built in 2017, so it is 8 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 1,500 vehicles a day, roughly 7% of them trucks, projected to reach 1,414 by 2046. The structure is 205 ft (62.5 m) long and 32 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

Location

Open in Google Maps
CarriesIl 164
CrossesCedar Creek
Location1.51 MI NE of US 34
RouteState Highway 164
CountyWarren County
StateIllinois
Coordinates40.9407, -90.58849
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating52.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length205 ft (62.5 m)
Longest span92 ft (28 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2023)
Projected traffic1,414 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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 164 over Cedar Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is Il 164 over Cedar 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 October 2023.

How much traffic does Il 164 over Cedar Creek carry?

About 1,500 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Il 164 over Cedar Creek?

The structure is 205 ft (62.5 m) long with a longest span of 92 ft (28 m) and a deck 32 ft wide.

Who owns Il 164 over Cedar Creek?

It is owned by the State Highway Agency.