Structure 20303900000000 · De Witt County, IL

Tr 74 over Long Point Creek

Carries Tr 74 over Long Point Creek, 4.8 Mi NW Wapella.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT50 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9Substructure 4/9 · sets the rating

50 ft end to end, longest span 35 ft. 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.

Built193195 years old
Length49.5 ft15.1 m
Daily traffic50counted 2018
Last inspectedJanuary 2022every 24 months

Location

StateIllinois
CountyDe Witt
Location4.8 Mi NW Wapella
CarriesTr 74
CrossesLong Point Creek
Coordinates40.26390, -89.02970

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length49.5 ft (15.1 m)
Max Span35.1 ft (10.7 m)
Deck Width15.1 ft (4.6 m)
Deck Area69.5 sq m
Main Spans2
Year Built1931

Traffic

Avg Daily Traffic50 (2018)
Lanes On Bridge1

Inspection & Ownership

Last InspectionJanuary 2022
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number020303900000000

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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