US Bridges

Ill 4 over Hurricane Creek

Good

Macoupin County, Illinois · .9MI N Carlinville · Structure no. 059005600000000

Built
1996
29 years old
Condition
Good
inspected August 2021
Type
Stringer/Multi-beam or Girder
Steel
Length
71 ft
1 main span
Daily traffic
2,900
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 4 over Hurricane Creek is a steel stringer/multi-beam or girder carrying Ill 4 over Hurricane Creek in Macoupin County, Illinois. It was built in 1996, so it is 29 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 2,900 vehicles a day, roughly 11% of them trucks, projected to reach 3,535 by 2046. The structure is 71 ft (21.7 m) long and 39 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesIll 4
CrossesHurricane Creek
Location.9MI N Carlinville
RouteState Highway 4
Coordinates39.31006, -89.87849
Functional classUrban Other Principal 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating51.8 US tons
Inventory rating39.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length71 ft (21.7 m)
Longest span68 ft (20.8 m)
Deck width39 ft (11.8 m)
Roadway width35 ft (10.8 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 1996, making it 29 years old in 2025.

What condition is Ill 4 over Hurricane 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 August 2021.

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 71 ft (21.7 m) long with a longest span of 68 ft (20.8 m) and a deck 39 ft wide.

Who owns Ill 4 over Hurricane Creek?

It is owned by the State Highway Agency.