US Bridges

I-95 SB (870451) over SW 1st Ave

Fair

Miami-Dade County, Florida · 1MI S of SR-90 · Structure no. 870354

Built
1966
59 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
508 ft
5 main spans
Daily traffic
37,500
2022 count
Owner
State
State Highway Agency

About this bridge

I-95 SB (870451) over SW 1st Ave is a steel continuous stringer/multi-beam or girder carrying I-95 SB (870451) over SW 1st Ave in Miami-Dade County, Florida. It was built in 1966, so it is 59 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 6 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 37,500 vehicles a day, roughly 4% of them trucks, projected to reach 65,062 by 2044. The structure is 508 ft (154.8 m) long and 54 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesI-95 SB (870451)
CrossesSW 1st Ave
Location1MI S of SR-90
RouteInterstate 95
CountyMiami-Dade County
StateFlorida
Coordinates25.75696, -80.20018
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.9 US tons
Inventory rating29.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length508 ft (154.8 m)
Longest span132 ft (40.2 m)
Deck width54 ft (16.4 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,500 (2022)
Projected traffic65,062 by 2044
Trucks4%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-95 SB (870451) over SW 1st Ave built?

It was built in 1966, making it 59 years old in 2025.

What condition is I-95 SB (870451) over SW 1st Ave 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 May 2023.

How much traffic does I-95 SB (870451) over SW 1st Ave carry?

About 37,500 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is I-95 SB (870451) over SW 1st Ave?

The structure is 508 ft (154.8 m) long with a longest span of 132 ft (40.2 m) and a deck 54 ft wide.

Who owns I-95 SB (870451) over SW 1st Ave?

It is owned by the State Highway Agency.