Structure 60022400000000 · Madison County, IL

Ramp 255nb To 270w over I-270

Carries Ramp 255nb To 270w over I-270, 1.8mi W Ill 157.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT337 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

337 ft end to end, longest span 87 ft: about 5 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.

Built198739 years old
Length336.9 ft102.7 m
Daily traffic4,800counted 2022
Last inspectedNovember 2024every 24 months

Location

StateIllinois
CountyMadison
Location1.8mi W Ill 157
CarriesRamp 255nb To 270w
CrossesI-270
Coordinates38.75648, -90.04054

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length336.9 ft (102.7 m)
Max Span86.9 ft (26.5 m)
Deck Width43.0 ft (13.1 m)
Deck Area1345.4 sq m
Main Spans5
Year Built1987

Traffic

Avg Daily Traffic4,800 (2022)
Truck Traffic14%
Lanes On Bridge2
Lanes Under Bridge12

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number060022400000000

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