US Bridges

SR-546 (memorial) over I-4 (SR-400)

Good

Polk County, Florida · 1.9 MI E/O Polk Pkwy. · Structure no. 160330

Built
2005
20 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
323 ft
2 main spans
Daily traffic
13,100
2024 count
Owner
State
State Highway Agency

About this bridge

SR-546 (memorial) over I-4 (SR-400) is a steel continuous stringer/multi-beam or girder carrying SR-546 (memorial) over I-4 (SR-400) in Polk 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 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 13,100 vehicles a day, roughly 13% of them trucks, projected to reach 16,375 by 2044. The structure is 323 ft (98.4 m) long and 101 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR-546 (memorial)
CrossesI-4 (SR-400)
Location1.9 MI E/O Polk Pkwy.
RouteState Highway 546
CountyPolk County
StateFlorida
Coordinates28.05189, -82.01494
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating50.8 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length323 ft (98.4 m)
Longest span174 ft (53 m)
Deck width101 ft (30.8 m)
Roadway width99 ft (30.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,100 (2024)
Projected traffic16,375 by 2044
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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 SR-546 (memorial) over I-4 (SR-400) built?

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

What condition is SR-546 (memorial) over I-4 (SR-400) 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 July 2024.

How much traffic does SR-546 (memorial) over I-4 (SR-400) carry?

About 13,100 vehicles per day (2024 count), of which roughly 13% are trucks.

How long is SR-546 (memorial) over I-4 (SR-400)?

The structure is 323 ft (98.4 m) long with a longest span of 174 ft (53 m) and a deck 101 ft wide.

Who owns SR-546 (memorial) over I-4 (SR-400)?

It is owned by the State Highway Agency.