US Bridges

NW 77th Ave over Little River Canal C-7

Fair

Miami-Dade County, Florida · N of NW 103rd St. · Structure no. 870569

Built
1959
66 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
90 ft
3 main spans
Daily traffic
7,607
2022 count
Owner
State
State Highway Agency

About this bridge

NW 77th Ave over Little River Canal C-7 is a concrete slab carrying NW 77th Ave over Little River Canal C-7 in Miami-Dade County, Florida. It was built in 1959, so it is 66 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 6 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 7,607 vehicles a day, projected to reach 13,198 by 2042. The structure is 90 ft (27.3 m) long and 34 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesNW 77th Ave
CrossesLittle River Canal C-7
LocationN of NW 103rd St.
CountyMiami-Dade County
StateFlorida
Coordinates25.86958, -80.32352
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.9 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length90 ft (27.3 m)
Longest span30 ft (9.1 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,607 (2022)
Projected traffic13,198 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 NW 77th Ave over Little River Canal C-7 built?

It was built in 1959, making it 66 years old in 2025.

What condition is NW 77th Ave 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 March 2024.

How much traffic does NW 77th Ave over Little River Canal C-7 carry?

About 7,607 vehicles per day (2022 count).

How long is NW 77th Ave over Little River Canal C-7?

The structure is 90 ft (27.3 m) long with a longest span of 30 ft (9.1 m) and a deck 34 ft wide.

Who owns NW 77th Ave over Little River Canal C-7?

It is owned by the State Highway Agency.