Structure 99007400000000 · Will County, IL

I- 80 EB To Center over Center ST SB

Carries I- 80 EB To Center over Center ST SB, I-80 & Center ST.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 3 of 9.

How ratings work
Deck4/9 · Poor
Superstructuresets the rating3/9 · Serious
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT122 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 3/9 · sets the ratingSubstructure 6/9

122 ft end to end, longest span 46 ft. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built196660 years old
Length121.7 ft37.1 m
Daily traffic1,350counted 2023
Last inspectedSeptember 2024every 12 months

Location

StateIllinois
CountyWill
LocationI-80 & Center ST
CarriesI- 80 EB To Center
CrossesCenter ST SB
Coordinates41.51192, -88.10005

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length121.7 ft (37.1 m)
Max Span46.3 ft (14.1 m)
Deck Width27.9 ft (8.5 m)
Deck Area315.4 sq m
Main Spans3
Year Built1966

Traffic

Avg Daily Traffic1,350 (2023)
Truck Traffic14%
Lanes On Bridge1
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number099007400000000

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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