Structure 11001200000000 · Christian County, IL

Il 29 over Locust Creek Trib.

Carries Il 29 over Locust Creek Trib., .25m SE Millersville.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT32 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

32 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 slab bridge.

Built1924rebuilt 1958
Length32.2 ft9.8 m
Daily traffic3,750counted 2023
Last inspectedDecember 2024every 24 months

Location

StateIllinois
CountyChristian
Location.25m SE Millersville
CarriesIl 29
CrossesLocust Creek Trib.
Coordinates39.44783, -89.15444

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length32.2 ft (9.8 m)
Max Span30.8 ft (9.4 m)
Deck Width46.3 ft (14.1 m)
Deck Area138.2 sq m
Main Spans1
Year Built1924 (reconstructed 1958)

Traffic

Avg Daily Traffic3,750 (2023)
Truck Traffic13%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number011001200000000

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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