Structure 91321400000000 · Union County, IL

Tr 112 over Trib To Mill Creek

Carries Tr 112 over Trib To Mill Creek, 2 Mi N Of Mill Creek.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT45 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 5/9 · sets the rating

45 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.

Built200323 years old
Length44.6 ft13.6 m
Daily traffic75counted 2020
Last inspectedNovember 2023every 24 months

Location

StateIllinois
CountyUnion
Location2 Mi N Of Mill Creek
CarriesTr 112
CrossesTrib To Mill Creek
Coordinates37.37720, -89.24998

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length44.6 ft (13.6 m)
Max Span39.0 ft (11.9 m)
Deck Width24.3 ft (7.4 m)
Deck Area100.6 sq m
Main Spans1
Year Built2003

Traffic

Avg Daily Traffic75 (2020)
Truck Traffic59%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number091321400000000

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