US Bridges

Benoist Farms RD over C-51 Canal

Good

Palm Beach County, Florida · Benoist Farms RD at SR-80 · Structure no. 934711

Built
2008
17 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
173 ft
5 main spans
Daily traffic
10,000
2024 count
Owner
County
County Highway Agency

About this bridge

Benoist Farms RD over C-51 Canal is a prestressed concrete stringer/multi-beam or girder carrying Benoist Farms RD over C-51 Canal in Palm Beach County, Florida. It was built in 2008, so it is 17 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,000 vehicles a day, roughly 10% of them trucks, projected to reach 15,000 by 2046. The structure is 173 ft (52.6 m) long and 80 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBenoist Farms RD
CrossesC-51 Canal
LocationBenoist Farms RD at SR-80
RouteCity Street 0
StateFlorida
Coordinates26.67889, -80.17417
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating37.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length173 ft (52.6 m)
Longest span34 ft (10.5 m)
Deck width80 ft (24.4 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,000 (2024)
Projected traffic15,000 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Benoist Farms RD over C-51 Canal built?

It was built in 2008, making it 17 years old in 2025.

What condition is Benoist Farms RD over C-51 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 November 2024.

How much traffic does Benoist Farms RD over C-51 Canal carry?

About 10,000 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Benoist Farms RD over C-51 Canal?

The structure is 173 ft (52.6 m) long with a longest span of 34 ft (10.5 m) and a deck 80 ft wide.

Who owns Benoist Farms RD over C-51 Canal?

It is owned by the County Highway Agency.