Structure 34156 · Putnam County, MO

County RD over Branch

Carries County RD over Branch, S 11 T 65 N R 18 W.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck9/9 · Excellent
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
23 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 7/9Substructure 5/9 · sets the rating

23 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built201214 years old
Length23.3 ft7.1 m
Daily traffic5counted 2024
Last inspectedFebruary 2023every 24 months

Location

StateMissouri
CountyPutnam
LocationS 11 T 65 N R 18 W
CarriesCounty RD
CrossesBranch
Coordinates40.44558, -92.88408

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length23.3 ft (7.1 m)
Max Span22.3 ft (6.8 m)
Deck Width18.0 ft (5.5 m)
Deck Area39.0 sq m
Main Spans1
Year Built2012

Traffic

Avg Daily Traffic5 (2024)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number34156

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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