US Bridges

I-55 W Frontage Ro over Clear Creek

Fair

Logan County, Illinois · 1.7M N Atlanta Intch · Structure no. 054000400000000

Built
1943
82 years old, rebuilt 1954
Condition
Fair
inspected October 2024
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
1,400
2022 count
Owner
State
State Highway Agency

About this bridge

I-55 W Frontage Ro over Clear Creek is a concrete slab carrying I-55 W Frontage Ro over Clear Creek in Logan County, Illinois. It was built in 1943 and reconstructed in 1954, so it is 82 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 1,400 vehicles a day, roughly 9% of them trucks, projected to reach 1,050 by 2046. The structure is 26 ft (8 m) long and 47 ft wide.

CarriesI-55 W Frontage Ro
CrossesClear Creek
Location1.7M N Atlanta Intch
RouteCounty Highway 0
Coordinates40.28036, -89.20919
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.6 US tons
Inventory rating37.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length26 ft (8 m)
Longest span24 ft (7.4 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2022)
Projected traffic1,050 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 I-55 W Frontage Ro over Clear Creek built?

It was built in 1943, making it 82 years old in 2025. It was reconstructed in 1954.

What condition is I-55 W Frontage Ro over Clear 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 October 2024.

How much traffic does I-55 W Frontage Ro over Clear Creek carry?

About 1,400 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is I-55 W Frontage Ro over Clear Creek?

The structure is 26 ft (8 m) long with a longest span of 24 ft (7.4 m) and a deck 47 ft wide.

Who owns I-55 W Frontage Ro over Clear Creek?

It is owned by the State Highway Agency.