US Bridges

SR91 N/S Tpk 148.2 over Drainage Canal

Good

St. Lucie County, Florida · 2.50 Mi. S of SR-709 · Structure no. 941000

Built
1956
69 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
46,900
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

SR91 N/S Tpk 148.2 over Drainage Canal is a concrete culvert carrying SR91 N/S Tpk 148.2 over Drainage Canal in St. Lucie County, Florida. It was built in 1956, so it is 69 years old, older 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 46,900 vehicles a day, roughly 20% of them trucks, projected to reach 81,372 by 2042. The structure is 20 ft (6.2 m) long.

CarriesSR91 N/S Tpk 148.2
CrossesDrainage Canal
Location2.50 Mi. S of SR-709
RouteState Highway 91
StateFlorida
Coordinates27.34505, -80.37424
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating75.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length20 ft (6.2 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 traffic46,900 (2023)
Projected traffic81,372 by 2042
Trucks20%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 SR91 N/S Tpk 148.2 over Drainage Canal built?

It was built in 1956, making it 69 years old in 2025.

What condition is SR91 N/S Tpk 148.2 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 December 2023.

How much traffic does SR91 N/S Tpk 148.2 over Drainage Canal carry?

About 46,900 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is SR91 N/S Tpk 148.2 over Drainage Canal?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m).

Who owns SR91 N/S Tpk 148.2 over Drainage Canal?

It is owned by the State Toll Authority.