US Bridges

NB I 95 SR 9 over C-18 Canal

Good

Palm Beach County, Florida · South of Ramp to SR 706 · Structure no. 930387

Built
1987
38 years old, rebuilt 2011
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
358 ft
3 main spans
Daily traffic
59,157
2023 count
Owner
State
State Highway Agency

About this bridge

NB I 95 SR 9 over C-18 Canal is a prestressed concrete stringer/multi-beam or girder carrying NB I 95 SR 9 over C-18 Canal in Palm Beach County, Florida. It was built in 1987 and reconstructed in 2011, so it is 38 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 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 59,157 vehicles a day, roughly 8% of them trucks, projected to reach 102,637 by 2042. The structure is 358 ft (109.1 m) long and 87 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesNB I 95 SR 9
CrossesC-18 Canal
LocationSouth of Ramp to SR 706
RouteInterstate 95
StateFlorida
Coordinates26.93, -80.14865
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.4 US tons
Inventory rating36.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3 (+4 approach)
Design loadHS 20 + Mod
Structure length358 ft (109.1 m)
Longest span77 ft (23.6 m)
Deck width87 ft (26.5 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59,157 (2023)
Projected traffic102,637 by 2042
Trucks8%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 NB I 95 SR 9 over C-18 Canal built?

It was built in 1987, making it 38 years old in 2025. It was reconstructed in 2011.

What condition is NB I 95 SR 9 over C-18 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 April 2023.

How much traffic does NB I 95 SR 9 over C-18 Canal carry?

About 59,157 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is NB I 95 SR 9 over C-18 Canal?

The structure is 358 ft (109.1 m) long with a longest span of 77 ft (23.6 m) and a deck 87 ft wide.

Who owns NB I 95 SR 9 over C-18 Canal?

It is owned by the State Highway Agency.