US Bridges

SR 429 NB Ramp B over I-4 & SR 429 SB Ramp C

Good

Osceola County, Florida · SR 429 & I-4 Interchange · Structure no. 920601

Built
2006
19 years old
Condition
Good
inspected January 2024
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
1,038 ft
5 main spans
Daily traffic
11,500
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR 429 NB Ramp B over I-4 & SR 429 SB Ramp C is a steel continuous box beam or girders - single or spread carrying SR 429 NB Ramp B over I-4 & SR 429 SB Ramp C in Osceola County, Florida. It was built in 2006, so it is 19 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 11,500 vehicles a day, roughly 11% of them trucks, projected to reach 19,952 by 2042. The structure is 1,038 ft (316.4 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 429 NB Ramp B
CrossesI-4 & SR 429 SB Ramp C
LocationSR 429 & I-4 Interchange
RouteState Highway 429
CountyOsceola County
StateFlorida
Coordinates28.28251, -81.59301
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.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 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 rating65.1 US tons
Inventory rating40 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length1,038 ft (316.4 m)
Longest span255 ft (77.8 m)
Deck width49 ft (15 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2022)
Projected traffic19,952 by 2042
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesThird level (interchange)
CrossesHighway
Detour if closed1.2 mi (2 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 429 NB Ramp B over I-4 & SR 429 SB Ramp C built?

It was built in 2006, making it 19 years old in 2025.

What condition is SR 429 NB Ramp B over I-4 & SR 429 SB Ramp C 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 January 2024.

How much traffic does SR 429 NB Ramp B over I-4 & SR 429 SB Ramp C carry?

About 11,500 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is SR 429 NB Ramp B over I-4 & SR 429 SB Ramp C?

The structure is 1,038 ft (316.4 m) long with a longest span of 255 ft (77.8 m) and a deck 49 ft wide.

Who owns SR 429 NB Ramp B over I-4 & SR 429 SB Ramp C?

It is owned by the State Toll Authority.