Structure 81003600000000 · Rock Island County, IL

Ill 5 & 92 over Iais Rr

Carries Ill 5 & 92 over Iais Rr, 0.2 Mi NE Jct Ill 84.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT424 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

424 ft end to end, longest span 73 ft: about 6 semi-trucks nose to tail. 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.

Built1951rebuilt 1990
Length423.6 ft129.1 m
Daily traffic14,700counted 2023
Last inspectedSeptember 2024every 24 months

Location

StateIllinois
CountyRock Island
Location0.2 Mi NE Jct Ill 84
CarriesIll 5 & 92
CrossesIais Rr
Coordinates41.51143, -90.39608

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length423.6 ft (129.1 m)
Max Span73.2 ft (22.3 m)
Deck Width75.1 ft (22.9 m)
Deck Area2956.4 sq m
Main Spans7
Year Built1951 (reconstructed 1990)

Traffic

Avg Daily Traffic14,700 (2023)
Truck Traffic8%
Lanes On Bridge4

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number081003600000000

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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