Structure 46340800000000 · Kankakee County, IL

Tr 99 over Unnamed Creek

Carries Tr 99 over Unnamed Creek, 3.5 Mi SE Momence.

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 overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT47 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

47 ft end to end. 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 box-beam bridge.

Built198244 years old
Length46.9 ft14.3 m
Daily traffic100counted 2021
Last inspectedJune 2024every 24 months

Location

StateIllinois
CountyKankakee
Location3.5 Mi SE Momence
CarriesTr 99
CrossesUnnamed Creek
Coordinates41.13886, -87.62919

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length46.9 ft (14.3 m)
Max Span44.9 ft (13.7 m)
Deck Width24.3 ft (7.4 m)
Deck Area105.8 sq m
Main Spans1
Year Built1982

Traffic

Avg Daily Traffic100 (2021)
Truck Traffic22%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number046340800000000

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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