Structure 100684 · Hillsborough County, FL

Ramp D1 over Tia Canal

Carries Ramp D1 over Tia Canal, 0.75mi W Of CR 587.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT664 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

664 ft end to end, longest span 144 ft: about 1.8 football fields. 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.

Built200818 years old
Length664.4 ft202.5 m
Daily traffic6,300counted 2024
Last inspectedSeptember 2024every 24 months

Location

StateFlorida
CountyHillsborough
Location0.75mi W Of CR 587
CarriesRamp D1
CrossesTia Canal
Coordinates27.96072, -82.53807

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length664.4 ft (202.5 m)
Max Span144.4 ft (44 m)
Deck Width33.5 ft (10.2 m)
Deck Area2065.5 sq m
Main Spans5
Year Built2008

Traffic

Avg Daily Traffic6,300 (2024)
Truck Traffic8%
Lanes On Bridge1

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number100684

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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