US Bridges

Lake Underhill Dr. over SR-408 EB Exit Ramp

Good

Orange County, Florida · 0.7 MI W of Semoran Blvd. · Structure no. 750579

Built
2008
17 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
317 ft
3 main spans
Daily traffic
14,750
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Lake Underhill Dr. over SR-408 EB Exit Ramp is a steel stringer/multi-beam or girder carrying Lake Underhill Dr. over SR-408 EB Exit Ramp in Orange County, Florida. It was built in 2008, so it is 17 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 14,750 vehicles a day, roughly 5% of them trucks, projected to reach 25,592 by 2045. The structure is 317 ft (96.6 m) long and 36 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLake Underhill Dr.
CrossesSR-408 EB Exit Ramp
Location0.7 MI W of Semoran Blvd.
RouteState Highway 526
CountyOrange County
StateFlorida
Coordinates28.53914, -81.32219
Functional classUrban Minor Arterial

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.8 US tons
Inventory rating42.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length317 ft (96.6 m)
Longest span106 ft (32.3 m)
Deck width36 ft (10.9 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic14,750 (2023)
Projected traffic25,592 by 2045
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 Lake Underhill Dr. over SR-408 EB Exit Ramp built?

It was built in 2008, making it 17 years old in 2025.

What condition is Lake Underhill Dr. over SR-408 EB Exit Ramp 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 August 2024.

How much traffic does Lake Underhill Dr. over SR-408 EB Exit Ramp carry?

About 14,750 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Lake Underhill Dr. over SR-408 EB Exit Ramp?

The structure is 317 ft (96.6 m) long with a longest span of 106 ft (32.3 m) and a deck 36 ft wide.

Who owns Lake Underhill Dr. over SR-408 EB Exit Ramp?

It is owned by the State Toll Authority.