Structure 82253000000000 · St. Clair County, IL

West Boulevard over East Trib To Loop CR

Carries West Boulevard over East Trib To Loop CR, 200 NW Of Il 161.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
24 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 24 ft across. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.

Built196660 years old
Length23.6 ft7.2 m
Daily traffic9,650counted 2023
Last inspectedApril 2023every 24 months

Location

StateIllinois
CountySt. Clair
Location200 NW Of Il 161
CarriesWest Boulevard
CrossesEast Trib To Loop CR
Coordinates38.51925, -89.94563

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length23.6 ft (7.2 m)
Max Span20.3 ft (6.2 m)
Deck Area52.6 sq m
Main Spans1
Year Built1966

Traffic

Avg Daily Traffic9,650 (2023)
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number082253000000000

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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