US Bridges

SB I-95 (sr 9) over Drainage Canal

Good

Martin County, Florida · 1 Mi. N of Cnty RD 708 · Structure no. 890131

Built
1986
39 years old
Condition
Good
inspected February 2025
Type
Slab
Concrete Continuous
Length
80 ft
3 main spans
Daily traffic
51,500
2022 count
Owner
State
State Highway Agency

About this bridge

SB I-95 (sr 9) over Drainage Canal is a concrete continuous slab carrying SB I-95 (sr 9) over Drainage Canal in Martin County, Florida. It was built in 1986, so it is 39 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 51,500 vehicles a day, roughly 11% of them trucks, projected to reach 89,352 by 2044. The structure is 80 ft (24.4 m) long and 59 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSB I-95 (sr 9)
CrossesDrainage Canal
Location1 Mi. N of Cnty RD 708
RouteInterstate 95
StateFlorida
Coordinates27.05905, -80.23896
Functional classRural 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 inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.3 US tons
Inventory rating32.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span27 ft (8.1 m)
Deck width59 ft (17.9 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51,500 (2022)
Projected traffic89,352 by 2044
Trucks11%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 SB I-95 (sr 9) over Drainage Canal built?

It was built in 1986, making it 39 years old in 2025.

What condition is SB I-95 (sr 9) 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 February 2025.

How much traffic does SB I-95 (sr 9) over Drainage Canal carry?

About 51,500 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is SB I-95 (sr 9) over Drainage Canal?

The structure is 80 ft (24.4 m) long with a longest span of 27 ft (8.1 m) and a deck 59 ft wide.

Who owns SB I-95 (sr 9) over Drainage Canal?

It is owned by the State Highway Agency.