Structure 2247 · Stone County, MO

RT Aa S over Crane CR

Carries RT Aa S over Crane CR, S 21 T 25 N R 23 W.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT349 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 7/9

349 ft end to end, longest span 76 ft: about 5 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 multi-beam bridge.

Built197155 years old
Length349.1 ft106.4 m
Daily traffic238counted 2024
Last inspectedJune 2024every 24 months

Location

StateMissouri
CountyStone
LocationS 21 T 25 N R 23 W
CarriesRT Aa S
CrossesCrane CR
Coordinates36.85563, -93.45443

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length349.1 ft (106.4 m)
Max Span76.1 ft (23.2 m)
Deck Width30.8 ft (9.4 m)
Deck Area1000.2 sq m
Main Spans7
Year Built1971

Traffic

Avg Daily Traffic238 (2024)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number2247

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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