US Bridges

SR 847 over Snake Creek Canal C-9

Good

Miami-Dade County, Florida · S of NW 215 ST on 47 Ave · Structure no. 874036

Built
2019
6 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
139 ft
1 main span
Daily traffic
14,300
2024 count
Owner
State
State Highway Agency

About this bridge

SR 847 over Snake Creek Canal C-9 is a prestressed concrete stringer/multi-beam or girder carrying SR 847 over Snake Creek Canal C-9 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 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 14,300 vehicles a day, roughly 6% of them trucks, projected to reach 24,810 by 2042. The structure is 139 ft (42.4 m) long and 86 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSR 847
CrossesSnake Creek Canal C-9
LocationS of NW 215 ST on 47 Ave
RouteCounty Highway 847
StateFlorida
Coordinates25.96469, -80.27833
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.5 US tons
Inventory rating38.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length139 ft (42.4 m)
Longest span139 ft (42.4 m)
Deck width86 ft (26.1 m)
Roadway width84 ft (25.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,300 (2024)
Projected traffic24,810 by 2042
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
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 SR 847 over Snake Creek Canal C-9 built?

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

What condition is SR 847 over Snake Creek Canal C-9 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 SR 847 over Snake Creek Canal C-9 carry?

About 14,300 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is SR 847 over Snake Creek Canal C-9?

The structure is 139 ft (42.4 m) long with a longest span of 139 ft (42.4 m) and a deck 86 ft wide.

Who owns SR 847 over Snake Creek Canal C-9?

It is owned by the State Highway Agency.