US Bridges

SR821 SB Heft 29.1 over NW 41st Sreet

Good

Miami-Dade County, Florida · 2 Miles South of NW 74 ST · Structure no. 870217

Built
1973
52 years old, rebuilt 2022
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
171 ft
2 main spans
Daily traffic
135,200
2024 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR821 SB Heft 29.1 over NW 41st Sreet is a prestressed concrete stringer/multi-beam or girder carrying SR821 SB Heft 29.1 over NW 41st Sreet in Miami-Dade County, Florida. It was built in 1973 and reconstructed in 2022, 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 135,200 vehicles a day, roughly 5% of them trucks, projected to reach 211,300 by 2042. The structure is 171 ft (52.1 m) long and 102 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR821 SB Heft 29.1
CrossesNW 41st Sreet
Location2 Miles South of NW 74 ST
RouteState Highway 821
StateFlorida
Coordinates25.81174, -80.38653
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.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating37.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span86 ft (26.1 m)
Deck width102 ft (31.2 m)
Roadway width100 ft (30.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic135,200 (2024)
Projected traffic211,300 by 2042
Trucks5%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR821 SB Heft 29.1 over NW 41st Sreet built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2022.

What condition is SR821 SB Heft 29.1 over NW 41st Sreet 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 29.1 over NW 41st Sreet carry?

About 135,200 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is SR821 SB Heft 29.1 over NW 41st Sreet?

The structure is 171 ft (52.1 m) long with a longest span of 86 ft (26.1 m) and a deck 102 ft wide.

Who owns SR821 SB Heft 29.1 over NW 41st Sreet?

It is owned by the State Toll Authority.