US Bridges

NE123rd St. over Intracoastal W/Way

FairPosted for load

Miami-Dade County, Florida · 0.8 Mile East of US-1 · Structure no. 875101

Built
1951
74 years old
Condition
Fair
inspected January 2024
Type
Movable - Bascule
Steel
Length
1,630 ft
1 main span
Daily traffic
21,000
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

NE123rd St. over Intracoastal W/Way is a steel movable - bascule carrying NE123rd St. over Intracoastal W/Way in Miami-Dade County, Florida. It was built in 1951, so it is 74 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. Its operating status is: posted for load restriction.

It carries about 21,000 vehicles a day, roughly 4% of them trucks, projected to reach 22,440 by 2041. The structure is 1,630 ft (496.8 m) long and 48 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNE123rd St.
CrossesIntracoastal W/Way
Location0.8 Mile East of US-1
RouteCounty Highway 0
CountyMiami-Dade County
StateFlorida
Coordinates25.88732, -80.14239
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating19 US tons
Inventory rating14.6 US tons

Structure

Structure typeMovable - Bascule
MaterialSteel
DeckOpen grating
Main spans1 (+29 approach)
Design loadHL 93
Structure length1,630 ft (496.8 m)
Longest span151 ft (46.1 m)
Deck width48 ft (14.5 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,000 (2019)
Projected traffic22,440 by 2041
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a toll road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$10 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was NE123rd St. over Intracoastal W/Way built?

It was built in 1951, making it 74 years old in 2025.

What condition is NE123rd St. over Intracoastal W/Way 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 January 2024.

How much traffic does NE123rd St. over Intracoastal W/Way carry?

About 21,000 vehicles per day (2019 count), of which roughly 4% are trucks.

How long is NE123rd St. over Intracoastal W/Way?

The structure is 1,630 ft (496.8 m) long with a longest span of 151 ft (46.1 m) and a deck 48 ft wide.

Who owns NE123rd St. over Intracoastal W/Way?

It is owned by the Town or Township Highway Agency.