Structure 17938 · Washington County, AL

County Road 35 over Norfolk Southern Railroa

Carries County Road 35 over Norfolk Southern Railroa, Olin Overpass.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT340 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

340 ft end to end, longest span 135 ft: about 5 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.

Built200224 years old
Length340.2 ft103.7 m
Daily traffic1,150counted 2000
Last inspectedAugust 2024every 24 months

Location

StateAlabama
CountyWashington
LocationOlin Overpass
CarriesCounty Road 35
CrossesNorfolk Southern Railroa
Coordinates31.25640, -88.00776

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length340.2 ft (103.7 m)
Max Span135.2 ft (41.2 m)
Deck Width46.6 ft (14.2 m)
Deck Area1472.5 sq m
Main Spans2
Year Built2002

Traffic

Avg Daily Traffic1,150 (2000)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number017938

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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