Structure 720725 · Duval County, FL

Us-alt-1(sr115) SB over Ramp To E 21 Street

Carries Us-alt-1(sr115) SB over Ramp To E 21 Street, Ramp To E. 21st St..

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
CAR · 15 FT50 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

50 ft end to end. Lengths and the car 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.

Built201412 years old
Length49.5 ft15.1 m
Daily traffic24,000counted 2022
Last inspectedDecember 2023every 24 months

Location

StateFlorida
CountyDuval
LocationRamp To E. 21st St.
CarriesUs-alt-1(sr115) SB
CrossesRamp To E 21 Street
Coordinates30.35468, -81.63749

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length49.5 ft (15.1 m)
Max Span49.5 ft (15.1 m)
Deck Width72.2 ft (22 m)
Deck Area332.2 sq m
Main Spans1
Year Built2014

Traffic

Avg Daily Traffic24,000 (2022)
Truck Traffic13%
Lanes On Bridge2
Lanes Under Bridge1

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number720725

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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