US Bridges

Comp SR-9 over Little River Canal C-7

Good

Miami-Dade County, Florida · 0.23M N of NW 103 ST · Structure no. 870088

Built
1948
77 years old, rebuilt 1971
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
90 ft
6 main spans
Daily traffic
35,000
2022 count
Owner
State
State Highway Agency

About this bridge

Comp SR-9 over Little River Canal C-7 is a concrete continuous slab carrying Comp SR-9 over Little River Canal C-7 in Miami-Dade County, Florida. It was built in 1948 and reconstructed in 1971, so it is 77 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 35,000 vehicles a day, roughly 7% of them trucks, projected to reach 60,725 by 2044. The structure is 90 ft (27.5 m) long and 102 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesComp SR-9
CrossesLittle River Canal C-7
Location0.23M N of NW 103 ST
RouteState Highway 9
StateFlorida
Coordinates25.87138, -80.24263
Functional classUrban Other Principal Arterial

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 inspectionNovember 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.7 US tons
Inventory rating37.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length90 ft (27.5 m)
Longest span15 ft (4.6 m)
Deck width102 ft (31.1 m)
Roadway width76 ft (23.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,000 (2022)
Projected traffic60,725 by 2044
Trucks7%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Comp SR-9 over Little River Canal C-7 built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1971.

What condition is Comp SR-9 over Little River Canal C-7 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 2024.

How much traffic does Comp SR-9 over Little River Canal C-7 carry?

About 35,000 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Comp SR-9 over Little River Canal C-7?

The structure is 90 ft (27.5 m) long with a longest span of 15 ft (4.6 m) and a deck 102 ft wide.

Who owns Comp SR-9 over Little River Canal C-7?

It is owned by the State Highway Agency.