US Bridges

SR-408 over I-4 (SR-400)

Good

Orange County, Florida · SR-408 over I-4 · Structure no. 750935

Built
2017
8 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
435 ft
4 main spans
Daily traffic
45,500
2022 count
Owner
State
State Highway Agency

About this bridge

SR-408 over I-4 (SR-400) is a prestressed concrete stringer/multi-beam or girder carrying SR-408 over I-4 (SR-400) in Orange County, Florida. It was built in 2017, so it is 8 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 45,500 vehicles a day, roughly 4% of them trucks, projected to reach 78,942 by 2042. The structure is 435 ft (132.5 m) long and 144 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSR-408
CrossesI-4 (SR-400)
LocationSR-408 over I-4
CountyOrange County
StateFlorida
Coordinates28.53531, -81.38344
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.1 US tons
Inventory rating37.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length435 ft (132.5 m)
Longest span142 ft (43.2 m)
Deck width144 ft (44 m)
Roadway width113 ft (34.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,500 (2022)
Projected traffic78,942 by 2042
Trucks4%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes

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 SR-408 over I-4 (SR-400) built?

It was built in 2017, making it 8 years old in 2025.

What condition is SR-408 over I-4 (SR-400) 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 December 2024.

How much traffic does SR-408 over I-4 (SR-400) carry?

About 45,500 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is SR-408 over I-4 (SR-400)?

The structure is 435 ft (132.5 m) long with a longest span of 142 ft (43.2 m) and a deck 144 ft wide.

Who owns SR-408 over I-4 (SR-400)?

It is owned by the State Highway Agency.