US Bridges

SR-429 SB over Porter Road

Good

Orange County, Florida · 1MI S of New Indep Pkwy · Structure no. 750526

Built
2005
20 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
178 ft
1 main span
Daily traffic
28,250
2022 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR-429 SB over Porter Road is a steel stringer/multi-beam or girder carrying SR-429 SB over Porter Road in Orange County, Florida. It was built in 2005, so it is 20 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 28,250 vehicles a day, roughly 3% of them trucks, projected to reach 49,014 by 2044. The structure is 178 ft (54.3 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR-429 SB
CrossesPorter Road
Location1MI S of New Indep Pkwy
RouteState Highway 429
CountyOrange County
StateFlorida
Coordinates28.45986, -81.63586
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length178 ft (54.3 m)
Longest span178 ft (54.3 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic28,250 (2022)
Projected traffic49,014 by 2044
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 SB over Porter Road built?

It was built in 2005, making it 20 years old in 2025.

What condition is SR-429 SB over Porter Road 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 November 2023.

How much traffic does SR-429 SB over Porter Road carry?

About 28,250 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is SR-429 SB over Porter Road?

The structure is 178 ft (54.3 m) long with a longest span of 178 ft (54.3 m) and a deck 43 ft wide.

Who owns SR-429 SB over Porter Road?

It is owned by the State Toll Authority.