US Bridges

I 57 SB over Cypress Creek

Good

Union County, Illinois · 0.7 MI S Ill 146 · Structure no. 091000800000000

Built
1959
66 years old, rebuilt 2002
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
210 ft
3 main spans
Daily traffic
5,950
2024 count
Owner
State
State Highway Agency

About this bridge

I 57 SB over Cypress Creek is a steel continuous stringer/multi-beam or girder carrying I 57 SB over Cypress Creek in Union County, Illinois. It was built in 1959 and reconstructed in 2002, so it is 66 years old, older 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 5,950 vehicles a day, roughly 55% of them trucks, projected to reach 5,858 by 2046. The structure is 210 ft (63.9 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 57 SB
CrossesCypress Creek
Location0.7 MI S Ill 146
RouteInterstate 57
CountyUnion County
StateIllinois
Coordinates37.43926, -89.1492
Functional classRural Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: 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 rating65.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length210 ft (63.9 m)
Longest span81 ft (24.7 m)
Deck width39 ft (11.8 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,950 (2024)
Projected traffic5,858 by 2046
Trucks55%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$893,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I 57 SB over Cypress Creek built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2002.

What condition is I 57 SB over Cypress 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 2023.

How much traffic does I 57 SB over Cypress Creek carry?

About 5,950 vehicles per day (2024 count), of which roughly 55% are trucks.

How long is I 57 SB over Cypress Creek?

The structure is 210 ft (63.9 m) long with a longest span of 81 ft (24.7 m) and a deck 39 ft wide.

Who owns I 57 SB over Cypress Creek?

It is owned by the State Highway Agency.