Structure 34383400000000 · Hancock County, IL

Tr 229 over Middle Creek

Carries Tr 229 over Middle Creek, 2 Mi W Of Middlecr..

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall3/9 · Serious
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT26 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 4/9 · sets the rating

26 ft end to end. Lengths and the car 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.

Built196165 years old
Length25.9 ft7.9 m
Daily traffic75counted 2023
Last inspectedMarch 2023every 24 months

Location

StateIllinois
CountyHancock
Location2 Mi W Of Middlecr.
CarriesTr 229
CrossesMiddle Creek
Coordinates40.37647, -91.06363

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length25.9 ft (7.9 m)
Max Span24.9 ft (7.6 m)
Deck Width15.1 ft (4.6 m)
Deck Area36.3 sq m
Main Spans1
Year Built1961

Traffic

Avg Daily Traffic75 (2023)
Lanes On Bridge1

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number034383400000000

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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