Structure 191990 · Jackson County, IA

East Line ST over Beers Creek

Carries East Line ST over Beers Creek, 000000000.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 1 of 9.

How ratings work
Deck4/9 · Poor
Superstructuresets the rating1/9 · Imminent Failure
Substructure4/9 · Poor
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT62 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 1/9 · sets the ratingSubstructure 4/9

62 ft end to end. 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 through truss.

Built1902124 years old
Length62.0 ft18.9 m
Daily traffic20counted 2022
Last inspectedMarch 2016every 12 months

Location

StateIowa
CountyJackson
Location000000000
CarriesEast Line ST
CrossesBeers Creek
Coordinates42.07424, -90.87488

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length62.0 ft (18.9 m)
Max Span62.0 ft (18.9 m)
Deck Width16.1 ft (4.9 m)
Deck Area92.6 sq m
Main Spans1
Year Built1902

Traffic

Avg Daily Traffic20 (2022)
Lanes On Bridge1

Inspection & Ownership

Last InspectionMarch 2016
Inspection FrequencyEvery 12 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical7 — Countermeasures installed
Structure Number000000000191990

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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