US Bridges

Coco Plum Drive over Bonefish Bay

Fair

Monroe County, Florida · 0.3 Mi. E of US-1 Mm 54.1 · Structure no. 904540

Built
1977
48 years old, rebuilt 2022
Condition
Fair
inspected September 2023
Type
Slab
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
618
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Coco Plum Drive over Bonefish Bay is a prestressed concrete slab carrying Coco Plum Drive over Bonefish Bay in Monroe County, Florida. It was built in 1977 and reconstructed in 2022, so it is 48 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 618 vehicles a day, roughly 3% of them trucks, projected to reach 973 by 2042. The structure is 40 ft (12.1 m) long and 31 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesCoco Plum Drive
CrossesBonefish Bay
Location0.3 Mi. E of US-1 Mm 54.1
RouteCounty Highway 0
CountyMonroe County
StateFlorida
Coordinates24.73056, -81.01336
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating45.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length40 ft (12.1 m)
Longest span40 ft (12.1 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic618 (2023)
Projected traffic973 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 Coco Plum Drive over Bonefish Bay built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 2022.

What condition is Coco Plum Drive over Bonefish Bay 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 September 2023.

How much traffic does Coco Plum Drive over Bonefish Bay carry?

About 618 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Coco Plum Drive over Bonefish Bay?

The structure is 40 ft (12.1 m) long with a longest span of 40 ft (12.1 m) and a deck 31 ft wide.

Who owns Coco Plum Drive over Bonefish Bay?

It is owned by the City or Municipal Highway Agency.