US Bridges

Ill 151 over Spring Creek

Poor

Jackson County, Illinois · 2 MI S of Ava · Structure no. 039200500000000

Built
1935
90 years old
Condition
Poor
inspected January 2025
Type
Culvert
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
850
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 151 over Spring Creek is a concrete continuous culvert carrying Ill 151 over Spring Creek in Jackson County, Illinois. It was built in 1935, so it is 90 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 850 vehicles a day, roughly 20% of them trucks, projected to reach 859 by 2046. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 29.8 mi (48 km).

CarriesIll 151
CrossesSpring Creek
Location2 MI S of Ava
RouteState Highway 151
Coordinates37.85521, -89.51317
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2025
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 rating98.2 US tons
Inventory rating98.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length31 ft (9.4 m)
Longest span14 ft (4.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic850 (2023)
Projected traffic859 by 2046
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 Ill 151 over Spring Creek built?

It was built in 1935, making it 90 years old in 2025.

What condition is Ill 151 over Spring Creek 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 January 2025.

How much traffic does Ill 151 over Spring Creek carry?

About 850 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is Ill 151 over Spring Creek?

The structure is 31 ft (9.4 m) long with a longest span of 14 ft (4.2 m).

Who owns Ill 151 over Spring Creek?

It is owned by the State Highway Agency.