Structure 37251 · Mercer County, MO

Brant ST E over Up Rr

Carries Brant ST E over Up Rr, S 19 T 66 N R 23 W.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck4/9 · Poor
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT126 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 5/9Substructure 3/9 · sets the rating

126 ft end to end, longest span 20 ft. 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.

Built1900126 years old
Length126.0 ft38.4 m
Daily traffic218counted 2024
Last inspectedAugust 2024every 12 months

Location

StateMissouri
CountyMercer
LocationS 19 T 66 N R 23 W
CarriesBrant ST E
CrossesUp Rr
Coordinates40.50958, -93.53300

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length126.0 ft (38.4 m)
Max Span20.0 ft (6.1 m)
Deck Width21.0 ft (6.4 m)
Deck Area245.8 sq m
Main Spans7
Year Built1900

Traffic

Avg Daily Traffic218 (2024)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 12 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number37251

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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