Structure 20188 · Benton County, MO

Hastain AVE over Deer CR

Carries Hastain AVE over Deer CR, S 19 T 40 N R 20 W.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 2 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating2/9 · Critical
Substructure3/9 · Serious
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT52 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 2/9 · sets the ratingSubstructure 3/9

52 ft end to end. Lengths and the car 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.

Built1920106 years old
Length52.2 ft15.9 m
Daily traffic30counted 2024
Last inspectedJanuary 2020every 24 months

Location

StateMissouri
CountyBenton
LocationS 19 T 40 N R 20 W
CarriesHastain AVE
CrossesDeer CR
Coordinates38.22440, -93.17249

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length52.2 ft (15.9 m)
Max Span52.2 ft (15.9 m)
Deck Width12.1 ft (3.7 m)
Deck Area58.8 sq m
Main Spans1
Year Built1920

Traffic

Avg Daily Traffic30 (2024)
Truck Traffic10%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJanuary 2020
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number20188

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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