US Bridges

NW 32nd Avenue over Little River Canal (C-7)

Fair

Miami-Dade County, Florida · 50FT. N of NW 106th ST · Structure no. 874336

Built
1964
61 years old, rebuilt 1983
Condition
Fair
inspected February 2024
Type
Slab
Prestressed Concrete
Length
119 ft
3 main spans
Daily traffic
25,364
2021 count
Owner
County
County Highway Agency

About this bridge

NW 32nd Avenue over Little River Canal (C-7) is a prestressed concrete slab carrying NW 32nd Avenue over Little River Canal (C-7) in Miami-Dade County, Florida. It was built in 1964 and reconstructed in 1983, so it is 61 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 25,364 vehicles a day, roughly 5% of them trucks, projected to reach 44,007 by 2042. The structure is 119 ft (36.3 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNW 32nd Avenue
CrossesLittle River Canal (C-7)
Location50FT. N of NW 106th ST
RouteCounty Highway 0
StateFlorida
Coordinates25.87105, -80.2509
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.2 US tons
Inventory rating55.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length119 ft (36.3 m)
Longest span38 ft (11.6 m)
Deck width79 ft (24.2 m)
Roadway width66 ft (20.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,364 (2021)
Projected traffic44,007 by 2042
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 NW 32nd Avenue over Little River Canal (C-7) built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1983.

What condition is NW 32nd Avenue over Little River Canal (C-7) in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does NW 32nd Avenue over Little River Canal (C-7) carry?

About 25,364 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is NW 32nd Avenue over Little River Canal (C-7)?

The structure is 119 ft (36.3 m) long with a longest span of 38 ft (11.6 m) and a deck 79 ft wide.

Who owns NW 32nd Avenue over Little River Canal (C-7)?

It is owned by the County Highway Agency.