Structure 49307400000000 · Lake County, IL

Gilmer Road over Fairfield Road

Carries Gilmer Road over Fairfield Road, Int Gilmer&fairfield.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT130 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9Substructure 6/9 · sets the rating

130 ft end to end. 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.

Built200818 years old
Length130.2 ft39.7 m
Daily traffic8,450counted 2023
Last inspectedJuly 2024every 24 months

Location

StateIllinois
CountyLake
LocationInt Gilmer&fairfield
CarriesGilmer Road
CrossesFairfield Road
Coordinates42.29393, -88.10694

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length130.2 ft (39.7 m)
Max Span124.0 ft (37.8 m)
Deck Width56.4 ft (17.2 m)
Deck Area682.8 sq m
Main Spans1
Year Built2008

Traffic

Avg Daily Traffic8,450 (2023)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number049307400000000

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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