Structure 4919 · Dunklin County, MO

RT Bb E over ST Francis Rvr

Carries RT Bb E over ST Francis Rvr, S 10 T 20 N R 9 E.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT549 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

549 ft end to end, longest span 112 ft: about 1.5 football fields. 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.

Built196462 years old
Length548.6 ft167.2 m
Daily traffic505counted 2024
Last inspectedJuly 2024every 12 months

Location

StateMissouri
CountyDunklin
LocationS 10 T 20 N R 9 E
CarriesRT Bb E
CrossesST Francis Rvr
Coordinates36.39690, -90.07791

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length548.6 ft (167.2 m)
Max Span111.9 ft (34.1 m)
Deck Width29.5 ft (9 m)
Deck Area1504.8 sq m
Main Spans3
Year Built1964

Traffic

Avg Daily Traffic505 (2024)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number4919

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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