Structure 52005400000000 · Lee County, IL

Beemerville RD over I-39 & US 51

Carries Beemerville RD over I-39 & US 51, 3 Mi S Of US 30.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT269 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

269 ft end to end, longest span 112 ft: about 4 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.

Built198343 years old
Length269.4 ft82.1 m
Daily traffic125counted 2022
Last inspectedMarch 2023every 24 months

Location

StateIllinois
CountyLee
Location3 Mi S Of US 30
CarriesBeemerville RD
CrossesI-39 & US 51
Coordinates41.71665, -89.00882

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length269.4 ft (82.1 m)
Max Span111.9 ft (34.1 m)
Deck Width29.9 ft (9.1 m)
Deck Area747.1 sq m
Main Spans2
Year Built1983

Traffic

Avg Daily Traffic125 (2022)
Truck Traffic38%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number052005400000000

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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