Structure 156880 · Franklin County, IA

FM Spruce AVE over Maynes Creek

Carries FM Spruce AVE over Maynes Creek, 091191802.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT176 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 3/9 · sets the rating

176 ft end to end, longest span 49 ft: about 2 semi-trucks nose to tail. 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 slab bridge.

Built195274 years old
Length175.9 ft53.6 m
Daily traffic49counted 2022
Last inspectedMay 2024every 12 months

Location

StateIowa
CountyFranklin
Location091191802
CarriesFM Spruce AVE
CrossesMaynes Creek
Coordinates42.69191, -93.14379

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length175.9 ft (53.6 m)
Max Span48.9 ft (14.9 m)
Deck Width22.6 ft (6.9 m)
Deck Area369.8 sq m
Main Spans4
Year Built1952

Traffic

Avg Daily Traffic49 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000000156880

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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