Structure 42300600000000 · Jersey County, IL

Fas 749 over Otter Creek

Carries Fas 749 over Otter Creek, 3.0 Mi S Ill 16.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT161 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 7/9

161 ft end to end, longest span 40 ft: about 2 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 box-beam bridge.

Built1960rebuilt 1996
Length161.1 ft49.1 m
Daily traffic1,100counted 2022
Last inspectedApril 2023every 24 months

Location

StateIllinois
CountyJersey
Location3.0 Mi S Ill 16
CarriesFas 749
CrossesOtter Creek
Coordinates39.07303, -90.39416

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length161.1 ft (49.1 m)
Max Span40.0 ft (12.2 m)
Deck Width29.9 ft (9.1 m)
Deck Area446.8 sq m
Main Spans5
Year Built1960 (reconstructed 1996)

Traffic

Avg Daily Traffic1,100 (2022)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number042300600000000

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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