US Bridges

Porter Pond RD over Swindle Swamp

FairPosted for load

Washington County, Florida · 0.5 MI South of Ellen RD · Structure no. 614135

Built
1980
45 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
30 ft
2 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

Porter Pond RD over Swindle Swamp is a wood or timber stringer/multi-beam or girder carrying Porter Pond RD over Swindle Swamp in Washington County, Florida. It was built in 1980, so it is 45 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, projected to reach 87 by 2046. The structure is 30 ft (9.1 m) long and 16 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPorter Pond RD
CrossesSwindle Swamp
Location0.5 MI South of Ellen RD
RouteCounty Highway 0
CountyWashington County
StateFlorida
Coordinates30.52573, -85.55143
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26 US tons
Inventory rating19 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span15 ft (4.6 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic87 by 2046
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 Porter Pond RD over Swindle Swamp built?

It was built in 1980, making it 45 years old in 2025.

What condition is Porter Pond RD over Swindle Swamp 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 2024.

How much traffic does Porter Pond RD over Swindle Swamp carry?

About 50 vehicles per day (2024 count).

How long is Porter Pond RD over Swindle Swamp?

The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m) and a deck 16 ft wide.

Who owns Porter Pond RD over Swindle Swamp?

It is owned by the County Highway Agency.