US Bridges

SR821 NB Heft 23.2 over Snapper Creek Canal C-2

Good

Miami-Dade County, Florida · 0.6 Miles S of SR 976 · Structure no. 870914

Built
2019
6 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete Continuous
Length
136 ft
3 main spans
Daily traffic
7,900
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR821 NB Heft 23.2 over Snapper Creek Canal C-2 is a concrete continuous slab carrying SR821 NB Heft 23.2 over Snapper Creek Canal C-2 in Miami-Dade County, Florida. It was built in 2019, so it is 6 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 7,900 vehicles a day, roughly 8% of them trucks, projected to reach 9,800 by 2042. The structure is 136 ft (41.5 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR821 NB Heft 23.2
CrossesSnapper Creek Canal C-2
Location0.6 Miles S of SR 976
RouteState Highway 821
StateFlorida
Coordinates25.72348, -80.38332
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating62.6 US tons
Inventory rating48.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length136 ft (41.5 m)
Longest span53 ft (16.1 m)
Deck width55 ft (16.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,900 (2023)
Projected traffic9,800 by 2042
Trucks8%
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 NB Heft 23.2 over Snapper Creek Canal C-2 built?

It was built in 2019, making it 6 years old in 2025.

What condition is SR821 NB Heft 23.2 over Snapper Creek Canal C-2 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 November 2023.

How much traffic does SR821 NB Heft 23.2 over Snapper Creek Canal C-2 carry?

About 7,900 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is SR821 NB Heft 23.2 over Snapper Creek Canal C-2?

The structure is 136 ft (41.5 m) long with a longest span of 53 ft (16.1 m) and a deck 55 ft wide.

Who owns SR821 NB Heft 23.2 over Snapper Creek Canal C-2?

It is owned by the State Toll Authority.