US Bridges

FAI 155 SB over Sugar Creek

Fair

Logan County, Illinois · 3M NW I-55/I-155 Int · Structure no. 054007400000000

Built
1986
39 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
573 ft
7 main spans
Daily traffic
5,300
2023 count
Owner
State
State Highway Agency

About this bridge

FAI 155 SB over Sugar Creek is a prestressed concrete stringer/multi-beam or girder carrying FAI 155 SB over Sugar Creek in Logan County, Illinois. It was built in 1986, so it is 39 years old, younger 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 5 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 5,300 vehicles a day, roughly 19% of them trucks, projected to reach 5,066 by 2046. The structure is 573 ft (174.7 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFAI 155 SB
CrossesSugar Creek
Location3M NW I-55/I-155 Int
RouteInterstate 155
CountyLogan County
StateIllinois
Coordinates40.21307, -89.44841
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating48.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length573 ft (174.7 m)
Longest span83 ft (25.3 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,300 (2023)
Projected traffic5,066 by 2046
Trucks19%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAI 155 SB over Sugar Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is FAI 155 SB over Sugar 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 July 2023.

How much traffic does FAI 155 SB over Sugar Creek carry?

About 5,300 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is FAI 155 SB over Sugar Creek?

The structure is 573 ft (174.7 m) long with a longest span of 83 ft (25.3 m) and a deck 42 ft wide.

Who owns FAI 155 SB over Sugar Creek?

It is owned by the State Highway Agency.