US Bridges

NB Hook Square over Miami Canal

FairPosted for load

Miami-Dade County, Florida · At Okeechobee Rd. (US-27) · Structure no. 874129

Built
1930
95 years old, rebuilt 2003
Condition
Fair
inspected September 2023
Type
Truss - Thru
Steel
Length
134 ft
1 main span
Daily traffic
11,050
2024 count
Owner
County
County Highway Agency

About this bridge

NB Hook Square over Miami Canal is a steel truss - thru carrying NB Hook Square over Miami Canal in Miami-Dade County, Florida. It was built in 1930 and reconstructed in 2003, so it is 95 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 11,050 vehicles a day, roughly 5% of them trucks, projected to reach 16,352 by 2042. The structure is 134 ft (40.8 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNB Hook Square
CrossesMiami Canal
LocationAt Okeechobee Rd. (US-27)
RouteCity Street 0
CountyMiami-Dade County
StateFlorida
Coordinates25.82176, -80.27969
Functional classUrban Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating39.6 US tons
Inventory rating27.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckOpen grating
Main spans1
Design loadHS 20
Structure length134 ft (40.8 m)
Longest span133 ft (40.4 m)
Deck width29 ft (8.9 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deck15 ft (4.5 m)

Traffic and service

Average daily traffic11,050 (2024)
Projected traffic16,352 by 2042
Trucks5%
Lanes on structure2
Traffic directionOne-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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was NB Hook Square over Miami Canal built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2003.

What condition is NB Hook Square over Miami Canal 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 September 2023.

How much traffic does NB Hook Square over Miami Canal carry?

About 11,050 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is NB Hook Square over Miami Canal?

The structure is 134 ft (40.8 m) long with a longest span of 133 ft (40.4 m) and a deck 29 ft wide.

Who owns NB Hook Square over Miami Canal?

It is owned by the County Highway Agency.