Structure 44305600000000 · Johnson County, IL

Tr 109 over Little Cache Creek

Carries Tr 109 over Little Cache Creek, S 1/2 Sec22 T12s R3e.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT74 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

74 ft end to end, longest span 36 ft. 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 or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built197452 years old
Length74.1 ft22.6 m
Daily traffic150counted 2021
Last inspectedFebruary 2025every 24 months

Location

StateIllinois
CountyJohnson
LocationS 1/2 Sec22 T12s R3e
CarriesTr 109
CrossesLittle Cache Creek
Coordinates37.45460, -88.86586

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length74.1 ft (22.6 m)
Max Span36.1 ft (11 m)
Deck Width26.6 ft (8.1 m)
Deck Area183.1 sq m
Main Spans3
Year Built1974

Traffic

Avg Daily Traffic150 (2021)
Truck Traffic21%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number044305600000000

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.

Nearby Bridges