Structure 1420 · Linn County, IA

Edgewood RD NE over Cedar River & Rr

Carries Edgewood RD NE over Cedar River & Rr, 000000000.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure and Substructure at 0 of 9.

How ratings work
Decksets the rating0/9 · Failed
Superstructuresets the rating0/9 · Failed
Substructuresets the rating0/9 · Failed
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT664 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 0/9Superstructure 0/9Substructure 0/9

664 ft end to end, longest span 144 ft: about 1.8 football fields. Lengths and the semi-truck 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 box-beam bridge.

Built1969rebuilt 1987
Length664.0 ft202.4 m
Daily traffic10,268counted 2022
Last inspectedSeptember 2022every 24 months

Location

StateIowa
CountyLinn
Location000000000
CarriesEdgewood RD NE
CrossesCedar River & Rr
Coordinates42.01034, -91.70516

Physical Characteristics

MaterialSteel Continuous
DesignBox Beam - Multiple
Total Length664.0 ft (202.4 m)
Max Span144.0 ft (43.9 m)
Deck Width74.8 ft (22.8 m)
Deck Area4614.7 sq m
Main Spans5
Year Built1969 (reconstructed 1987)

Traffic

Avg Daily Traffic10,268 (2022)
Lanes On Bridge4

Inspection & Ownership

Last InspectionSeptember 2022
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000001420

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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