Structure 60670600000000 · Madison County, IL

E Lake DR Fau 8895 over Trib To Dunlap Lake

Carries E Lake DR Fau 8895 over Trib To Dunlap Lake, 0.05 Mi E Gerber RD.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT85 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 85 ft across with 6 openings. Lengths and the car 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, so those are drawn as typical for a culvert.

Built200917 years old
Length84.6 ft25.8 m
Daily traffic800counted 2021
Last inspectedJanuary 2021every 48 months

Location

StateIllinois
CountyMadison
Location0.05 Mi E Gerber RD
CarriesE Lake DR Fau 8895
CrossesTrib To Dunlap Lake
Coordinates38.79135, -89.93202

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length84.6 ft (25.8 m)
Max Span13.1 ft (4 m)
Deck Area203.8 sq m
Main Spans6
Year Built2009

Traffic

Avg Daily Traffic800 (2021)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2021
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number060670600000000

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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