Structure 340008 · Levy County, FL

CR 347 over Sandfly Swamp

Carries CR 347 over Sandfly Swamp, 11.9 Mi North Of SR 24.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT150 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

150 ft end to end, longest span 25 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 tee-beam bridge.

Built195769 years old
Length149.9 ft45.7 m
Daily traffic650counted 2024
Last inspectedMay 2024every 24 months

Location

StateFlorida
CountyLevy
Location11.9 Mi North Of SR 24
CarriesCR 347
CrossesSandfly Swamp
Coordinates29.33808, -83.04156

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length149.9 ft (45.7 m)
Max Span24.9 ft (7.6 m)
Deck Width25.6 ft (7.8 m)
Deck Area356.5 sq m
Main Spans6
Year Built1957

Traffic

Avg Daily Traffic650 (2024)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number340008

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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