US Bridges

W Lake Hamilton RD over Margrets Canal

Fair

Polk County, Florida · 2.3MI S of SR-544 · Structure no. 164201

Built
1960
65 years old
Condition
Fair
inspected June 2023
Type
Channel Beam
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
5,000
2023 count
Owner
County
County Highway Agency

About this bridge

W Lake Hamilton RD over Margrets Canal is a prestressed concrete channel beam carrying W Lake Hamilton RD over Margrets Canal in Polk County, Florida. It was built in 1960, so it is 65 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 5,000 vehicles a day, roughly 7% of them trucks, projected to reach 8,750 by 2042. The structure is 25 ft (7.5 m) long and 24 ft wide. If it were closed, the detour would be 4.3 mi (7 km).

CarriesW Lake Hamilton RD
CrossesMargrets Canal
Location2.3MI S of SR-544
RouteCounty Highway 0
StateFlorida
Coordinates28.05359, -81.67209
Functional classUrban Collector

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 protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.2 US tons
Inventory rating20.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length25 ft (7.5 m)
Longest span25 ft (7.5 m)
Deck width24 ft (7.3 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2023)
Projected traffic8,750 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed4.3 mi (7 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 W Lake Hamilton RD over Margrets Canal built?

It was built in 1960, making it 65 years old in 2025.

What condition is W Lake Hamilton RD over Margrets 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 2023.

How much traffic does W Lake Hamilton RD over Margrets Canal carry?

About 5,000 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is W Lake Hamilton RD over Margrets Canal?

The structure is 25 ft (7.5 m) long with a longest span of 25 ft (7.5 m) and a deck 24 ft wide.

Who owns W Lake Hamilton RD over Margrets Canal?

It is owned by the County Highway Agency.