Structure 68005700000000 · Montgomery County, IL

Il 127 over Union Pacific Rr

Carries Il 127 over Union Pacific Rr, .1m N Il 185.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT210 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

210 ft end to end, longest span 69 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck 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 multi-beam bridge.

Built199036 years old
Length210.3 ft64.1 m
Daily traffic6,300counted 2023
Last inspectedFebruary 2022every 48 months

Location

StateIllinois
CountyMontgomery
Location.1m N Il 185
CarriesIl 127
CrossesUnion Pacific Rr
Coordinates39.13951, -89.48700

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length210.3 ft (64.1 m)
Max Span68.6 ft (20.9 m)
Deck Width43.3 ft (13.2 m)
Deck Area846.1 sq m
Main Spans3
Year Built1990

Traffic

Avg Daily Traffic6,300 (2023)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number068005700000000

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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