Structure 48006800000000 · Knox County, IL

Lincoln Park DR over US 34 Bypass

Carries Lincoln Park DR over US 34 Bypass, 0.6 Mi E Of US 150.

Overall conditionPoor

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

How ratings work
Decksets the rating3/9 · Serious
Superstructure4/9 · Poor
Substructure4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT203 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 3/9 · sets the ratingSuperstructure 4/9Substructure 4/9

203 ft end to end, longest span 59 ft: about 3 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.

Built196561 years old
Length203.1 ft61.9 m
Daily traffic900counted 2022
Last inspectedJanuary 2024every 12 months

Location

StateIllinois
CountyKnox
Location0.6 Mi E Of US 150
CarriesLincoln Park DR
CrossesUS 34 Bypass
Coordinates40.98242, -90.37361

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length203.1 ft (61.9 m)
Max Span59.1 ft (18 m)
Deck Width47.9 ft (14.6 m)
Deck Area903.7 sq m
Main Spans4
Year Built1965

Traffic

Avg Daily Traffic900 (2022)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number048006800000000

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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