US Bridges

I-4 WB over SR-46

Good

Seminole County, Florida · I-4-WB over SR-46 · Structure no. 770084

Built
2004
21 years old, rebuilt 2013
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
202 ft
1 main span
Daily traffic
38,500
2023 count
Owner
State
State Highway Agency

About this bridge

I-4 WB over SR-46 is a steel stringer/multi-beam or girder carrying I-4 WB over SR-46 in Seminole County, Florida. It was built in 2004 and reconstructed in 2013, so it is 21 years old, younger than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 38,500 vehicles a day, roughly 7% of them trucks, projected to reach 66,798 by 2042. The structure is 202 ft (61.7 m) long and 138 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-4 WB
CrossesSR-46
LocationI-4-WB over SR-46
RouteState Highway 4
CountySeminole County
StateFlorida
Coordinates28.8113, -81.33814
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length202 ft (61.7 m)
Longest span200 ft (61.1 m)
Deck width138 ft (42.1 m)
Roadway width69 ft (21 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,500 (2023)
Projected traffic66,798 by 2042
Trucks7%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-4 WB over SR-46 built?

It was built in 2004, making it 21 years old in 2025. It was reconstructed in 2013.

What condition is I-4 WB over SR-46 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does I-4 WB over SR-46 carry?

About 38,500 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is I-4 WB over SR-46?

The structure is 202 ft (61.7 m) long with a longest span of 200 ft (61.1 m) and a deck 138 ft wide.

Who owns I-4 WB over SR-46?

It is owned by the State Highway Agency.