US Bridges

SR821 NB Heft 25.6 over Snapper Creek Canal C-2

Good

Miami-Dade County, Florida · 0.1 MI S of US-41 · Structure no. 870516

Built
1977
48 years old, rebuilt 1992
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
155 ft
3 main spans
Daily traffic
12,550
2024 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR821 NB Heft 25.6 over Snapper Creek Canal C-2 is a prestressed concrete stringer/multi-beam or girder carrying SR821 NB Heft 25.6 over Snapper Creek Canal C-2 in Miami-Dade County, Florida. It was built in 1977 and reconstructed in 1992, so it is 48 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 12,550 vehicles a day, roughly 6% of them trucks, projected to reach 21,774 by 2042. The structure is 155 ft (47.2 m) long and 46 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR821 NB Heft 25.6
CrossesSnapper Creek Canal C-2
Location0.1 MI S of US-41
RouteState Highway 821
CountyMiami-Dade County
StateFlorida
Coordinates25.75949, -80.38471
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.
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 rating58.3 US tons
Inventory rating44.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length155 ft (47.2 m)
Longest span54 ft (16.5 m)
Deck width46 ft (14.1 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,550 (2024)
Projected traffic21,774 by 2042
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Snapper Creek Canal C-2 built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 1992.

What condition is SR821 NB Heft 25.6 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 April 2024.

How much traffic does SR821 NB Heft 25.6 over Snapper Creek Canal C-2 carry?

About 12,550 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is SR821 NB Heft 25.6 over Snapper Creek Canal C-2?

The structure is 155 ft (47.2 m) long with a longest span of 54 ft (16.5 m) and a deck 46 ft wide.

Who owns SR821 NB Heft 25.6 over Snapper Creek Canal C-2?

It is owned by the State Toll Authority.