US Bridges

US 34 Il 164 Il 1 over Cedar CR Trib

Poor

Warren County, Illinois · 1.3MI E of US 67 · Structure no. 094200000000000

Built
1964
61 years old
Condition
Poor
inspected October 2024
Type
Culvert
Steel
Length
35 ft
2 main spans
Daily traffic
9,450
2023 count
Owner
State
State Highway Agency

About this bridge

US 34 Il 164 Il 1 over Cedar CR Trib is a steel culvert carrying US 34 Il 164 Il 1 over Cedar CR Trib in Warren County, Illinois. It was built in 1964, so it is 61 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 9,450 vehicles a day, roughly 17% of them trucks, projected to reach 8,535 by 2046. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 26.7 mi (43 km).

Location

Open in Google Maps
CarriesUS 34 Il 164 Il 1
CrossesCedar CR Trib
Location1.3MI E of US 67
RouteU.S. Route 34
CountyWarren County
StateIllinois
Coordinates40.92394, -90.62496
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,450 (2023)
Projected traffic8,535 by 2046
Trucks17%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 km)
TollOn a free road
National Highway SystemYes

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 US 34 Il 164 Il 1 over Cedar CR Trib built?

It was built in 1964, making it 61 years old in 2025.

What condition is US 34 Il 164 Il 1 over Cedar CR Trib in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does US 34 Il 164 Il 1 over Cedar CR Trib carry?

About 9,450 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is US 34 Il 164 Il 1 over Cedar CR Trib?

The structure is 35 ft (10.7 m) long with a longest span of 16 ft (4.9 m).

Who owns US 34 Il 164 Il 1 over Cedar CR Trib?

It is owned by the State Highway Agency.