Structure 8000500000000 · Carroll County, IL

Ill 64 And US 52 over Straddle Creek

Carries Ill 64 And US 52 over Straddle Creek, 3.4 Mi E Jct Ill 78.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT102 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

102 ft end to end, longest span 38 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.

Built1952rebuilt 1993
Length102.4 ft31.2 m
Daily traffic2,950counted 2023
Last inspectedFebruary 2024every 24 months

Location

StateIllinois
CountyCarroll
Location3.4 Mi E Jct Ill 78
CarriesIll 64 And US 52
CrossesStraddle Creek
Coordinates42.09506, -89.91549

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length102.4 ft (31.2 m)
Max Span37.7 ft (11.5 m)
Deck Width35.1 ft (10.7 m)
Deck Area333.8 sq m
Main Spans3
Year Built1952 (reconstructed 1993)

Traffic

Avg Daily Traffic2,950 (2023)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number008000500000000

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.

Nearby Bridges