Structure 43991 · Pottawattamie County, IA

Old Lincoln HWY over Simons Run

Carries Old Lincoln HWY over Simons Run, 076441310.

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
SEMI-TRUCK · 72 FT123 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

123 ft end to end. 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 multi-beam bridge.

Built20179 years old
Length123.0 ft37.5 m
Daily traffic2,430counted 2022
Last inspectedApril 2024every 24 months

Location

StateIowa
CountyPottawattamie
Location076441310
CarriesOld Lincoln HWY
CrossesSimons Run
Coordinates41.38584, -95.84443

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length123.0 ft (37.5 m)
Max Span120.1 ft (36.6 m)
Deck Width34.1 ft (10.4 m)
Deck Area390 sq m
Main Spans1
Year Built2017

Traffic

Avg Daily Traffic2,430 (2022)
Truck Traffic12%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000043991

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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