US Bridges

SW 328th Street over Levee L-31-E (C-107)

Fair

Miami-Dade County, Florida · 2 Mi. E of SW 117th Ave. · Structure no. 874476

Built
1967
58 years old
Condition
Fair
inspected November 2023
Type
Slab
Prestressed Concrete
Length
71 ft
2 main spans
Daily traffic
1,399
2023 count
Owner
County
County Highway Agency

About this bridge

SW 328th Street over Levee L-31-E (C-107) is a prestressed concrete slab carrying SW 328th Street over Levee L-31-E (C-107) in Miami-Dade County, Florida. It was built in 1967, so it is 58 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 1,399 vehicles a day, roughly 1% of them trucks, projected to reach 2,060 by 2042. The structure is 71 ft (21.6 m) long and 38 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSW 328th Street
CrossesLevee L-31-E (C-107)
Location2 Mi. E of SW 117th Ave.
RouteCounty Highway 0
StateFlorida
Coordinates25.46286, -80.34694
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating61.8 US tons
Inventory rating37 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length71 ft (21.6 m)
Longest span35 ft (10.8 m)
Deck width38 ft (11.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,399 (2023)
Projected traffic2,060 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

OwnerCounty Highway Agency
Maintained byCounty 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 SW 328th Street over Levee L-31-E (C-107) built?

It was built in 1967, making it 58 years old in 2025.

What condition is SW 328th Street over Levee L-31-E (C-107) 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 November 2023.

How much traffic does SW 328th Street over Levee L-31-E (C-107) carry?

About 1,399 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is SW 328th Street over Levee L-31-E (C-107)?

The structure is 71 ft (21.6 m) long with a longest span of 35 ft (10.8 m) and a deck 38 ft wide.

Who owns SW 328th Street over Levee L-31-E (C-107)?

It is owned by the County Highway Agency.