US Bridges

Ill 4 over Hurricane Creek

Fair

Macoupin County, Illinois · 2.5 M N Carlinville · Structure no. 059200200000000

Built
1960
65 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
33 ft
2 main spans
Daily traffic
2,900
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 4 over Hurricane Creek is a concrete culvert carrying Ill 4 over Hurricane Creek in Macoupin County, Illinois. It was built in 1960, so it is 65 years old, older 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 2,900 vehicles a day, roughly 11% of them trucks, projected to reach 3,535 by 2046. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 14.9 mi (24 km).

CarriesIll 4
CrossesHurricane Creek
Location2.5 M N Carlinville
RouteState Highway 4
Coordinates39.33287, -89.87154
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.6 US tons
Inventory rating53.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span15 ft (4.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,900 (2023)
Projected traffic3,535 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 Ill 4 over Hurricane Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Ill 4 over Hurricane 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 September 2024.

How much traffic does Ill 4 over Hurricane Creek carry?

About 2,900 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Ill 4 over Hurricane Creek?

The structure is 33 ft (10.1 m) long with a longest span of 15 ft (4.5 m).

Who owns Ill 4 over Hurricane Creek?

It is owned by the State Highway Agency.