Structure 84600100000000 · Sangamon County, IL

Washington ST over Jacksonville Branch

Carries Washington ST over Jacksonville Branch, 0.25 Mi W Ch27.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT100 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

100 ft end to end, longest span 39 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 slab bridge.

Built1978rebuilt 2010
Length100.4 ft30.6 m
Daily traffic8,100counted 2022
Last inspectedMarch 2021every 48 months

Location

StateIllinois
CountySangamon
Location0.25 Mi W Ch27
CarriesWashington ST
CrossesJacksonville Branch
Coordinates39.80139, -89.68849

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length100.4 ft (30.6 m)
Max Span39.0 ft (11.9 m)
Deck Width81.0 ft (24.7 m)
Deck Area755.8 sq m
Main Spans3
Year Built1978 (reconstructed 2010)

Traffic

Avg Daily Traffic8,100 (2022)
Truck Traffic3%
Lanes On Bridge4

Inspection & Ownership

Last InspectionMarch 2021
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number084600100000000

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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