US Bridges

Seminole/Prattwht over M Canal

Fair

Palm Beach County, Florida · 4MI N of Okeechobee Blvd. · Structure no. 934151

Built
1993
32 years old, rebuilt 2018
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
29 ft
1 main span
Daily traffic
28,500
2023 count
Owner
County
County Highway Agency

About this bridge

Seminole/Prattwht over M Canal is a prestressed concrete slab carrying Seminole/Prattwht over M Canal in Palm Beach County, Florida. It was built in 1993 and reconstructed in 2018, so it is 32 years old, younger 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 28,500 vehicles a day, roughly 8% of them trucks, projected to reach 49,448 by 2045. The structure is 29 ft (8.8 m) long and 121 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSeminole/Prattwht
CrossesM Canal
Location4MI N of Okeechobee Blvd.
RouteCounty Highway 0
CountyPalm Beach County
StateFlorida
Coordinates26.76498, -80.30705
Functional classUrban Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.6 US tons
Inventory rating36.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length29 ft (8.8 m)
Longest span29 ft (8.8 m)
Deck width121 ft (36.9 m)
Roadway width91 ft (27.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,500 (2023)
Projected traffic49,448 by 2045
Trucks8%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed9.9 mi (16 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 Seminole/Prattwht over M Canal built?

It was built in 1993, making it 32 years old in 2025. It was reconstructed in 2018.

What condition is Seminole/Prattwht over M 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 August 2024.

How much traffic does Seminole/Prattwht over M Canal carry?

About 28,500 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Seminole/Prattwht over M Canal?

The structure is 29 ft (8.8 m) long with a longest span of 29 ft (8.8 m) and a deck 121 ft wide.

Who owns Seminole/Prattwht over M Canal?

It is owned by the County Highway Agency.