US Bridges

SR821 SB Heft 25.6 over Tamiami Canal

Good

Miami-Dade County, Florida · SB Heft Exit to WB US 41 · Structure no. 870927

Built
2021
4 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete
Length
93 ft
3 main spans
Daily traffic
7,800
2024 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR821 SB Heft 25.6 over Tamiami Canal is a concrete slab carrying SR821 SB Heft 25.6 over Tamiami Canal in Miami-Dade County, Florida. It was built in 2021, so it is 4 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 7,800 vehicles a day, roughly 12% of them trucks, projected to reach 13,533 by 2042. The structure is 93 ft (28.3 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSR821 SB Heft 25.6
CrossesTamiami Canal
LocationSB Heft Exit to WB US 41
RouteState Highway 821
CountyMiami-Dade County
StateFlorida
Coordinates25.76139, -80.38739
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.5 US tons
Inventory rating42.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length93 ft (28.3 m)
Longest span32 ft (9.7 m)
Deck width55 ft (16.8 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deck19 ft (5.7 m)

Traffic and service

Average daily traffic7,800 (2024)
Projected traffic13,533 by 2042
Trucks12%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR821 SB Heft 25.6 over Tamiami Canal built?

It was built in 2021, making it 4 years old in 2025.

What condition is SR821 SB Heft 25.6 over Tamiami Canal 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 SR821 SB Heft 25.6 over Tamiami Canal carry?

About 7,800 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is SR821 SB Heft 25.6 over Tamiami Canal?

The structure is 93 ft (28.3 m) long with a longest span of 32 ft (9.7 m) and a deck 55 ft wide.

Who owns SR821 SB Heft 25.6 over Tamiami Canal?

It is owned by the State Toll Authority.