Structure 37004500000000 · Henry County, IL

Fai 80 EB over Mud Creek

Carries Fai 80 EB over Mud Creek, 0.7 Mi W Jct Ill 78.

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
SEMI-TRUCK · 72 FT142 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 6/9

142 ft end to end, longest span 51 ft. 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.

Built1961rebuilt 2004
Length142.1 ft43.3 m
Daily traffic8,800counted 2023
Last inspectedApril 2024every 24 months

Location

StateIllinois
CountyHenry
Location0.7 Mi W Jct Ill 78
CarriesFai 80 EB
CrossesMud Creek
Coordinates41.40925, -89.91832

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length142.1 ft (43.3 m)
Max Span50.9 ft (15.5 m)
Deck Width44.0 ft (13.4 m)
Deck Area580.2 sq m
Main Spans3
Year Built1961 (reconstructed 2004)

Traffic

Avg Daily Traffic8,800 (2023)
Truck Traffic48%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number037004500000000

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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