US Bridges

SR-451 NB over Florida Central RR

Fair

Orange County, Florida · 0.05MI S of US-441 · Structure no. 750508

Built
2000
25 years old, rebuilt 2009
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
142 ft
3 main spans
Daily traffic
7,800
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR-451 NB over Florida Central RR is a prestressed concrete stringer/multi-beam or girder carrying SR-451 NB over Florida Central RR in Orange County, Florida. It was built in 2000 and reconstructed in 2009, so it is 25 years old, younger than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 7,800 vehicles a day, roughly 5% of them trucks, projected to reach 13,533 by 2045. The structure is 142 ft (43.3 m) long and 99 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

Location

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CarriesSR-451 NB
CrossesFlorida Central RR
Location0.05MI S of US-441
RouteState Highway 451
CountyOrange County
StateFlorida
Coordinates28.68189, -81.52759
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating42.5 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length142 ft (43.3 m)
Longest span67 ft (20.4 m)
Deck width99 ft (30.2 m)
Roadway width96 ft (29.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,800 (2023)
Projected traffic13,533 by 2045
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed4.3 mi (7 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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-451 NB over Florida Central RR built?

It was built in 2000, making it 25 years old in 2025. It was reconstructed in 2009.

What condition is SR-451 NB over Florida Central RR in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.

How much traffic does SR-451 NB over Florida Central RR carry?

About 7,800 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is SR-451 NB over Florida Central RR?

The structure is 142 ft (43.3 m) long with a longest span of 67 ft (20.4 m) and a deck 99 ft wide.

Who owns SR-451 NB over Florida Central RR?

It is owned by the State Toll Authority.