US Bridges

N Bayshore Drive over Unnamed Channel

Fair

Miami-Dade County, Florida · 0.3 Mile N of Broad Cswy · Structure no. 877302

Built
1955
70 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
4,578
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Bayshore Drive over Unnamed Channel is a prestressed concrete stringer/multi-beam or girder carrying N Bayshore Drive over Unnamed Channel in Miami-Dade County, Florida. It was built in 1955, so it is 70 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.

It carries about 4,578 vehicles a day, roughly 1% of them trucks, projected to reach 8,199 by 2042. The structure is 50 ft (15.2 m) long and 31 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesN Bayshore Drive
CrossesUnnamed Channel
Location0.3 Mile N of Broad Cswy
RouteCity Street 0
CountyMiami-Dade County
StateFlorida
Coordinates25.89371, -80.15306
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.8 US tons
Inventory rating37.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span50 ft (15.2 m)
Deck width31 ft (9.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,578 (2023)
Projected traffic8,199 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 N Bayshore Drive over Unnamed Channel built?

It was built in 1955, making it 70 years old in 2025.

What condition is N Bayshore Drive over Unnamed Channel 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 October 2023.

How much traffic does N Bayshore Drive over Unnamed Channel carry?

About 4,578 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is N Bayshore Drive over Unnamed Channel?

The structure is 50 ft (15.2 m) long with a longest span of 50 ft (15.2 m) and a deck 31 ft wide.

Who owns N Bayshore Drive over Unnamed Channel?

It is owned by the City or Municipal Highway Agency.