Structure 72001600000000 · Peoria County, IL

SB Ill 29 over Dickison Run Creek

Carries SB Ill 29 over Dickison Run Creek, 0.5 Mi N Mossville.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT204 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 6/9

204 ft end to end, longest span 80 ft: about 3 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.

Built1937rebuilt 1981
Length204.1 ft62.2 m
Daily traffic14,400counted 2023
Last inspectedNovember 2024every 12 months

Location

StateIllinois
CountyPeoria
Location0.5 Mi N Mossville
CarriesSB Ill 29
CrossesDickison Run Creek
Coordinates40.82647, -89.56177

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length204.1 ft (62.2 m)
Max Span80.1 ft (24.4 m)
Deck Width43.3 ft (13.2 m)
Deck Area821.0 sq m
Main Spans3
Year Built1937 (reconstructed 1981)

Traffic

Avg Daily Traffic14,400 (2023)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number072001600000000

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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