Structure 17000 · Warren County, MO

Bluff RD over Trib Lake CR

Carries Bluff RD over Trib Lake CR, S 34 T 45 N R 1 W.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructuresets the rating4/9 · Poor
Substructure5/9 · 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 4/9 · sets the ratingSuperstructure 4/9 · sets the ratingSubstructure 5/9

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 slab bridge.

Built1900126 years old
Length23.0 ft7 m
Daily traffic150counted 2024
Last inspectedFebruary 2024every 24 months

Location

StateMissouri
CountyWarren
LocationS 34 T 45 N R 1 W
CarriesBluff RD
CrossesTrib Lake CR
Coordinates38.60872, -91.00508

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length23.0 ft (7 m)
Max Span20.0 ft (6.1 m)
Deck Width25.3 ft (7.7 m)
Deck Area53.9 sq m
Main Spans1
Year Built1900

Traffic

Avg Daily Traffic150 (2024)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number17000

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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