US Bridges

SR821 NB Heft 25.6 over US 41-SW 8 St-Tamiami Ca

Good

Miami-Dade County, Florida · 2 Miles North of SR 976 · Structure no. 870415

Built
1973
52 years old, rebuilt 2020
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
294 ft
5 main spans
Daily traffic
84,100
2024 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR821 NB Heft 25.6 over US 41-SW 8 St-Tamiami Ca is a prestressed concrete stringer/multi-beam or girder carrying SR821 NB Heft 25.6 over US 41-SW 8 St-Tamiami Ca in Miami-Dade County, Florida. It was built in 1973 and reconstructed in 2020, so it is 52 years old, older 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 84,100 vehicles a day, roughly 6% of them trucks, projected to reach 145,914 by 2042. The structure is 294 ft (89.6 m) long and 115 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSR821 NB Heft 25.6
CrossesUS 41-SW 8 St-Tamiami Ca
Location2 Miles North of SR 976
RouteState Highway 821
CountyMiami-Dade County
StateFlorida
Coordinates25.76121, -80.38516
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.2 US tons
Inventory rating38.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length294 ft (89.6 m)
Longest span71 ft (21.6 m)
Deck width115 ft (34.9 m)
Roadway width111 ft (33.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic84,100 (2024)
Projected traffic145,914 by 2042
Trucks6%
Lanes on structure7
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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 NB Heft 25.6 over US 41-SW 8 St-Tamiami Ca built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2020.

What condition is SR821 NB Heft 25.6 over US 41-SW 8 St-Tamiami Ca 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 NB Heft 25.6 over US 41-SW 8 St-Tamiami Ca carry?

About 84,100 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is SR821 NB Heft 25.6 over US 41-SW 8 St-Tamiami Ca?

The structure is 294 ft (89.6 m) long with a longest span of 71 ft (21.6 m) and a deck 115 ft wide.

Who owns SR821 NB Heft 25.6 over US 41-SW 8 St-Tamiami Ca?

It is owned by the State Toll Authority.