Structure 540035 · Jefferson County, FL

CR 146 over Aucilla River

Carries CR 146 over Aucilla River, 9.23 Miles N Of Us90/sr10.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT251 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

251 ft end to end, longest span 25 ft: about 3 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.

Built1951rebuilt 2008
Length250.7 ft76.4 m
Daily traffic750counted 2022
Last inspectedMarch 2024every 24 months

Location

StateFlorida
CountyJefferson
Location9.23 Miles N Of Us90/sr10
CarriesCR 146
CrossesAucilla River
Coordinates30.59623, -83.72111

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length250.7 ft (76.4 m)
Max Span25.3 ft (7.7 m)
Deck Width25.6 ft (7.8 m)
Deck Area595.9 sq m
Main Spans10
Year Built1951 (reconstructed 2008)

Traffic

Avg Daily Traffic750 (2022)
Truck Traffic13%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical7 — Countermeasures installed
Structure Number540035

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.