Structure 36672 · Lincoln County, MO

Martin Road over Campbell Branch

Carries Martin Road over Campbell Branch, S 7 T 48 N R 2 E.

Overall conditionGood

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

How ratings work
Decksets the rating9/9 · Excellent
Superstructuresets the rating9/9 · Excellent
Substructuresets the rating9/9 · Excellent
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
24 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 9/9Substructure 9/9

24 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 box-beam bridge.

Built20215 years old
Length24.0 ft7.3 m
Daily traffic20counted 2023
Last inspectedApril 2024every 24 months

Location

StateMissouri
CountyLincoln
LocationS 7 T 48 N R 2 E
CarriesMartin Road
CrossesCampbell Branch
Coordinates38.93803, -90.83056

Physical Characteristics

MaterialConcrete
DesignBox Beam - Multiple
Total Length24.0 ft (7.3 m)
Max Span21.7 ft (6.6 m)
Deck Width23.0 ft (7 m)
Deck Area51.1 sq m
Main Spans1
Year Built2021

Traffic

Avg Daily Traffic20 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number36672

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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