Structure 1596 · Holt County, MO

US 59 S over Is 29

Carries US 59 S over Is 29, S 2 T 62 N R 40 W.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure at 3 of 9.

How ratings work
Decksets the rating3/9 · Serious
Superstructuresets the rating3/9 · Serious
Substructure5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT308 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 3/9 · sets the ratingSuperstructure 3/9 · sets the ratingSubstructure 5/9

308 ft end to end, longest span 99 ft: 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 multi-beam bridge.

Built1972rebuilt 2024
Length308.1 ft93.9 m
Daily traffic1,008counted 2024
Last inspectedOctober 2024every 12 months

Location

StateMissouri
CountyHolt
LocationS 2 T 62 N R 40 W
CarriesUS 59 S
CrossesIs 29
Coordinates40.20765, -95.37443

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length308.1 ft (93.9 m)
Max Span98.8 ft (30.1 m)
Deck Width36.7 ft (11.2 m)
Deck Area1051.7 sq m
Main Spans3
Year Built1972 (reconstructed 2024)

Traffic

Avg Daily Traffic1,008 (2024)
Truck Traffic24%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1596

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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