US Bridges

SR-710 over C-18 Canal

Fair

Palm Beach County, Florida · 0.25 MI N of Northlake Bl · Structure no. 930344

Built
1958
67 years old, rebuilt 1986
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
15,700
2024 count
Owner
State
State Highway Agency

About this bridge

SR-710 over C-18 Canal is a concrete culvert carrying SR-710 over C-18 Canal in Palm Beach County, Florida. It was built in 1958 and reconstructed in 1986, so it is 67 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 15,700 vehicles a day, roughly 16% of them trucks, projected to reach 27,240 by 2042. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR-710
CrossesC-18 Canal
Location0.25 MI N of Northlake Bl
RouteState Highway 710
CountyPalm Beach County
StateFlorida
Coordinates26.81247, -80.15622
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.7 US tons
Inventory rating42.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,700 (2024)
Projected traffic27,240 by 2042
Trucks16%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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-710 over C-18 Canal built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1986.

What condition is SR-710 over C-18 Canal 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 June 2024.

How much traffic does SR-710 over C-18 Canal carry?

About 15,700 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is SR-710 over C-18 Canal?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).

Who owns SR-710 over C-18 Canal?

It is owned by the State Highway Agency.