US Bridges

NW 14 ST over I-95 SB (SR-9A)

Good

Miami-Dade County, Florida · Midtown Interchange · Structure no. 870365

Built
1968
57 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
142 ft
3 main spans
Daily traffic
6,246
2021 count
Owner
State
State Highway Agency

About this bridge

NW 14 ST over I-95 SB (SR-9A) is a prestressed concrete stringer/multi-beam or girder carrying NW 14 ST over I-95 SB (SR-9A) in Miami-Dade County, Florida. It was built in 1968, so it is 57 years old, older than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,246 vehicles a day, roughly 10% of them trucks, projected to reach 10,837 by 2042. The structure is 142 ft (43.3 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNW 14 ST
CrossesI-95 SB (SR-9A)
LocationMidtown Interchange
RouteCity Street 0
CountyMiami-Dade County
StateFlorida
Coordinates25.78799, -80.20379
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.2 US tons
Inventory rating42.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length142 ft (43.3 m)
Longest span64 ft (19.6 m)
Deck width64 ft (19.5 m)
Roadway width50 ft (15.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,246 (2021)
Projected traffic10,837 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 NW 14 ST over I-95 SB (SR-9A) built?

It was built in 1968, making it 57 years old in 2025.

What condition is NW 14 ST over I-95 SB (SR-9A) in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does NW 14 ST over I-95 SB (SR-9A) carry?

About 6,246 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is NW 14 ST over I-95 SB (SR-9A)?

The structure is 142 ft (43.3 m) long with a longest span of 64 ft (19.6 m) and a deck 64 ft wide.

Who owns NW 14 ST over I-95 SB (SR-9A)?

It is owned by the State Highway Agency.