US Bridges

SR-9 NW 27th Ave. over Drainage Canal

Good

Miami-Dade County, Florida · 0.5M N of NW 119 ST · Structure no. 870089

Built
1948
77 years old, rebuilt 1971
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
48,000
2022 count
Owner
State
State Highway Agency

About this bridge

SR-9 NW 27th Ave. over Drainage Canal is a concrete culvert carrying SR-9 NW 27th Ave. over Drainage Canal in Miami-Dade County, Florida. It was built in 1948 and reconstructed in 1971, so it is 77 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 48,000 vehicles a day, roughly 8% of them trucks, projected to reach 83,280 by 2044. The structure is 25 ft (7.6 m) long and 99 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSR-9 NW 27th Ave.
CrossesDrainage Canal
Location0.5M N of NW 119 ST
RouteState Highway 9
CountyMiami-Dade County
StateFlorida
Coordinates25.89001, -80.24331
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.7 US tons
Inventory rating31 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckOther
Main spans3
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span9 ft (2.7 m)
Deck width99 ft (30.3 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic48,000 (2022)
Projected traffic83,280 by 2044
Trucks8%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR-9 NW 27th Ave. over Drainage Canal built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 1971.

What condition is SR-9 NW 27th Ave. over Drainage Canal 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 June 2024.

How much traffic does SR-9 NW 27th Ave. over Drainage Canal carry?

About 48,000 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is SR-9 NW 27th Ave. over Drainage Canal?

The structure is 25 ft (7.6 m) long with a longest span of 9 ft (2.7 m) and a deck 99 ft wide.

Who owns SR-9 NW 27th Ave. over Drainage Canal?

It is owned by the State Highway Agency.