Structure 12803 · Pike County, MO

County RD 001 over S Spencer CR

Carries County RD 001 over S Spencer CR, S 12 T 54 N R 5 W.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT154 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

154 ft end to end, longest span 80 ft: about 2 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.

Built198442 years old
Length153.9 ft46.9 m
Daily traffic35counted 2023
Last inspectedJuly 2024every 24 months

Location

StateMissouri
CountyPike
LocationS 12 T 54 N R 5 W
CarriesCounty RD 001
CrossesS Spencer CR
Coordinates39.47206, -91.42081

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length153.9 ft (46.9 m)
Max Span80.1 ft (24.4 m)
Deck Width18.0 ft (5.5 m)
Deck Area257.9 sq m
Main Spans3
Year Built1984

Traffic

Avg Daily Traffic35 (2023)
Truck Traffic10%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number12803

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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