US Bridges

Park Byrd Road over Pinwheel Ditch

Good

Polk County, Florida · 0.2 MI South of CR-35A · Structure no. 164131

Built
1960
65 years old
Condition
Good
inspected May 2023
Type
Channel Beam
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
479
2023 count
Owner
County
County Highway Agency

About this bridge

Park Byrd Road over Pinwheel Ditch is a prestressed concrete channel beam carrying Park Byrd Road over Pinwheel Ditch 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 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 479 vehicles a day, roughly 2% of them trucks, projected to reach 831 by 2042. The structure is 25 ft (7.6 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPark Byrd Road
CrossesPinwheel Ditch
Location0.2 MI South of CR-35A
RouteCounty Highway 0
CountyPolk County
StateFlorida
Coordinates28.16106, -81.99031
Functional classUrban Local

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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.1 US tons
Inventory rating29.2 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic479 (2023)
Projected traffic831 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Park Byrd Road over Pinwheel Ditch built?

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

What condition is Park Byrd Road over Pinwheel Ditch 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 May 2023.

How much traffic does Park Byrd Road over Pinwheel Ditch carry?

About 479 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Park Byrd Road over Pinwheel Ditch?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m) and a deck 25 ft wide.

Who owns Park Byrd Road over Pinwheel Ditch?

It is owned by the County Highway Agency.