US Bridges

I-4 EB Ramp M1 over SR 429

Good

Seminole County, Florida · I-4 Ramp M1-SR 429 · Structure no. 770127

Built
2016
9 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
231 ft
2 main spans
Daily traffic
148,500
2022 count
Owner
State
State Highway Agency

About this bridge

I-4 EB Ramp M1 over SR 429 is a prestressed concrete stringer/multi-beam or girder carrying I-4 EB Ramp M1 over SR 429 in Seminole County, Florida. It was built in 2016, so it is 9 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 148,500 vehicles a day, roughly 5% of them trucks, projected to reach 18,000 by 2042. The structure is 231 ft (70.3 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-4 EB Ramp M1
CrossesSR 429
LocationI-4 Ramp M1-SR 429
RouteInterstate 400
CountySeminole County
StateFlorida
Coordinates28.79628, -81.3462
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.2 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length231 ft (70.3 m)
Longest span116 ft (35.5 m)
Deck width39 ft (11.8 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic148,500 (2022)
Projected traffic18,000 by 2042
Trucks5%
Lanes on structure2
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 EB Ramp M1 over SR 429 built?

It was built in 2016, making it 9 years old in 2025.

What condition is I-4 EB Ramp M1 over SR 429 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 April 2024.

How much traffic does I-4 EB Ramp M1 over SR 429 carry?

About 148,500 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is I-4 EB Ramp M1 over SR 429?

The structure is 231 ft (70.3 m) long with a longest span of 116 ft (35.5 m) and a deck 39 ft wide.

Who owns I-4 EB Ramp M1 over SR 429?

It is owned by the State Highway Agency.