Structure 362995 · Polk County, IA

Off NE 108th ST over Camp Creek Tributary

Carries Off NE 108th ST over Camp Creek Tributary, 079222604.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating4/9 · Poor
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT55 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 4/9 · sets the rating

55 ft end to end, longest span 23 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.

Built195076 years old
Length55.1 ft16.8 m
Daily traffic10counted 2023
Last inspectedSeptember 2024every 24 months

Location

StateIowa
CountyPolk
Location079222604
CarriesOff NE 108th ST
CrossesCamp Creek Tributary
Coordinates41.62305, -93.37753

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length55.1 ft (16.8 m)
Max Span23.0 ft (7 m)
Deck Width16.1 ft (4.9 m)
Deck Area82.3 sq m
Main Spans3
Year Built1950

Traffic

Avg Daily Traffic10 (2023)
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000000362995

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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