US Bridges

NW 22nd Avenue over Miami River

PoorClosed to traffic

Miami-Dade County, Florida · 600FT. N of NW 14th ST · Structure no. 874383

Built
1964
61 years old
Condition
Poor
inspected January 2024
Type
Movable - Bascule
Steel
Length
1,078 ft
1 main span
Daily traffic
20,780
2024 count
Owner
County
County Highway Agency

About this bridge

NW 22nd Avenue over Miami River is a steel movable - bascule carrying NW 22nd Avenue over Miami River in Miami-Dade County, Florida. It was built in 1964, 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 poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 20,780 vehicles a day, roughly 2% of them trucks, projected to reach 33,957 by 2042. The structure is 1,078 ft (328.6 m) long and 65 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNW 22nd Avenue
CrossesMiami River
Location600FT. N of NW 14th ST
RouteCity Street 0
StateFlorida
Coordinates25.78882, -80.23141
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.5 US tons
Inventory rating23 US tons

Structure

Structure typeMovable - Bascule
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+13 approach)
Design loadHS 20
Structure length1,078 ft (328.6 m)
Longest span164 ft (50.1 m)
Deck width65 ft (19.7 m)
Roadway width52 ft (16 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,780 (2024)
Projected traffic33,957 by 2042
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed1.9 mi (3 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was NW 22nd Avenue over Miami River built?

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

What condition is NW 22nd Avenue over Miami River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.

How much traffic does NW 22nd Avenue over Miami River carry?

About 20,780 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is NW 22nd Avenue over Miami River?

The structure is 1,078 ft (328.6 m) long with a longest span of 164 ft (50.1 m) and a deck 65 ft wide.

Who owns NW 22nd Avenue over Miami River?

It is owned by the County Highway Agency.