Structure 770133 · Seminole County, FL

I-4 EB Ramp M1 over CR 46a EB

Carries I-4 EB Ramp M1 over CR 46a EB, I-4 EB Ramp M1-cr 46a EB.

Overall conditionGood

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

How ratings work
Decksets the rating9/9 · Excellent
Superstructuresets the rating9/9 · Excellent
Substructuresets the rating9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT189 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 9/9Superstructure 9/9Substructure 9/9

189 ft end to end: 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.

Built20233 years old
Length189.0 ft57.6 m
Daily traffic1,000counted 2024
Last inspectedApril 2024every 24 months

Location

StateFlorida
CountySeminole
LocationI-4 EB Ramp M1-cr 46a EB
CarriesI-4 EB Ramp M1
CrossesCR 46a EB
Coordinates28.79824, -81.34435

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length189.0 ft (57.6 m)
Max Span187.0 ft (57 m)
Deck Width40.0 ft (12.2 m)
Deck Area702.7 sq m
Main Spans1
Year Built2023

Traffic

Avg Daily Traffic1,000 (2024)
Truck Traffic3%
Lanes On Bridge1
Lanes Under Bridge4

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number770133

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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