Structure 38001300000000 · Iroquois County, IL

Fai-57 NB over Fas 317 & Icg Rr

Carries Fai-57 NB over Fas 317 & Icg Rr, 0.78 Mi S Clifton In.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT374 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

374 ft end to end, longest span 96 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.

Built1966rebuilt 2014
Length373.7 ft113.9 m
Daily traffic9,200counted 2023
Last inspectedJanuary 2024every 24 months

Location

StateIllinois
CountyIroquois
Location0.78 Mi S Clifton In
CarriesFai-57 NB
CrossesFas 317 & Icg Rr
Coordinates40.92111, -87.93972

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length373.7 ft (113.9 m)
Max Span95.8 ft (29.2 m)
Deck Width43.3 ft (13.2 m)
Deck Area1503.5 sq m
Main Spans5
Year Built1966 (reconstructed 2014)

Traffic

Avg Daily Traffic9,200 (2023)
Truck Traffic32%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number038001300000000

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