US Bridges

NE 9th Ave. over South Little River

Fair

Miami-Dade County, Florida · 100FT. N of NE 75th St. · Structure no. 876418

Built
1986
39 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
132 ft
5 main spans
Daily traffic
1,404
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

NE 9th Ave. over South Little River is a concrete continuous slab carrying NE 9th Ave. over South Little River in Miami-Dade County, Florida. It was built in 1986, so it is 39 years old, younger 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 1,404 vehicles a day, roughly 1% of them trucks, projected to reach 2,336 by 2042. The structure is 132 ft (40.3 m) long and 36 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNE 9th Ave.
CrossesSouth Little River
Location100FT. N of NE 75th St.
RouteCity Street 0
StateFlorida
Coordinates25.84492, -80.17781
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating62.7 US tons
Inventory rating37.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length132 ft (40.3 m)
Longest span29 ft (8.7 m)
Deck width36 ft (11 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,404 (2022)
Projected traffic2,336 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 NE 9th Ave. over South Little River built?

It was built in 1986, making it 39 years old in 2025.

What condition is NE 9th Ave. over South Little River 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 November 2024.

How much traffic does NE 9th Ave. over South Little River carry?

About 1,404 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is NE 9th Ave. over South Little River?

The structure is 132 ft (40.3 m) long with a longest span of 29 ft (8.7 m) and a deck 36 ft wide.

Who owns NE 9th Ave. over South Little River?

It is owned by the City or Municipal Highway Agency.