US Bridges

Dean Still RD over Pine Drainage Canal

Fair

Polk County, Florida · 6.0 MI East of SR-33 · Structure no. 164207

Built
1960
65 years old
Condition
Fair
inspected December 2023
Type
Channel Beam
Prestressed Concrete
Length
60 ft
3 main spans
Daily traffic
1,765
2023 count
Owner
County
County Highway Agency

About this bridge

Dean Still RD over Pine Drainage Canal is a prestressed concrete channel beam carrying Dean Still RD over Pine Drainage 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 1,765 vehicles a day, roughly 23% of them trucks, projected to reach 3,062 by 2042. The structure is 60 ft (18.4 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesDean Still RD
CrossesPine Drainage Canal
Location6.0 MI East of SR-33
RouteCounty Highway 0
CountyPolk County
StateFlorida
Coordinates28.25903, -81.73113
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58.8 US tons
Inventory rating34.9 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length60 ft (18.4 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.5 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,765 (2023)
Projected traffic3,062 by 2042
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Dean Still RD over Pine Drainage Canal built?

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

What condition is Dean Still RD over Pine Drainage 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 December 2023.

How much traffic does Dean Still RD over Pine Drainage Canal carry?

About 1,765 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is Dean Still RD over Pine Drainage Canal?

The structure is 60 ft (18.4 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns Dean Still RD over Pine Drainage Canal?

It is owned by the County Highway Agency.