Structure 14760 · Osage County, MO

County RD 611 over Maries Rvr

Carries County RD 611 over Maries Rvr, S 26 T 43 N R 10 W.

Overall conditionPoor

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating0/9 · Failed
Substructure4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT280 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 0/9 · sets the ratingSubstructure 4/9

280 ft end to end: about 4 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 through truss.

Built1893133 years old
Length279.9 ft85.3 m
Daily traffic50counted 2023
Last inspectedApril 2019every 24 months

Location

StateMissouri
CountyOsage
LocationS 26 T 43 N R 10 W
CarriesCounty RD 611
CrossesMaries Rvr
Coordinates38.44488, -91.99084

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length279.9 ft (85.3 m)
Max Span145.0 ft (44.2 m)
Deck Width14.8 ft (4.5 m)
Deck Area383.9 sq m
Main Spans1
Year Built1893

Traffic

Avg Daily Traffic50 (2023)
Truck Traffic10%
Lanes On Bridge1

Inspection & Ownership

Last InspectionApril 2019
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number14760

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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