Structure 2524 · Saline County, MO

US 65 S over Blackwater Rvr

Carries US 65 S over Blackwater Rvr, S 26 T 49 N R 21 W.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure6/9 · Satisfactory
Substructure5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT521 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 6/9Substructure 5/9

521 ft end to end, longest span 115 ft: about 7 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.

Built198541 years old
Length521.0 ft158.8 m
Daily traffic3,618counted 2024
Last inspectedMay 2023every 24 months

Location

StateMissouri
CountySaline
LocationS 26 T 49 N R 21 W
CarriesUS 65 S
CrossesBlackwater Rvr
Coordinates38.99219, -93.19668

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length521.0 ft (158.8 m)
Max Span115.2 ft (35.1 m)
Deck Width42.3 ft (12.9 m)
Deck Area2048.5 sq m
Main Spans3
Year Built1985

Traffic

Avg Daily Traffic3,618 (2024)
Truck Traffic21%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number2524

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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