Structure 750946 · Orange County, FL

SR 408 over Alafaya Trail

Carries SR 408 over Alafaya Trail, SR 408 Over Alafaya Trail.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT153 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

153 ft end to end: 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 box-beam bridge.

Built20197 years old
Length152.9 ft46.6 m
Daily traffic41,500counted 2022
Last inspectedApril 2024every 24 months

Location

StateFlorida
CountyOrange
LocationSR 408 Over Alafaya Trail
CarriesSR 408
CrossesAlafaya Trail
Coordinates28.54983, -81.20389

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Single/Spread
Total Length152.9 ft (46.6 m)
Max Span150.9 ft (46 m)
Deck Width134.8 ft (41.1 m)
Deck Area1915.3 sq m
Main Spans1
Year Built2019

Traffic

Avg Daily Traffic41,500 (2022)
Truck Traffic3%
Lanes On Bridge6
Lanes Under Bridge7

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Toll Authority
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number750946

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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