US Bridges

State Forest Road over Blackwater Creek

Fair

Lake County, Florida · Seminole State Forest Br · Structure no. 110800

Built
1986
39 years old
Condition
Fair
inspected August 2023
Type
Slab
Prestressed Concrete
Length
92 ft
2 main spans
Daily traffic
6
2001 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

State Forest Road over Blackwater Creek is a prestressed concrete slab carrying State Forest Road over Blackwater Creek in Lake County, Florida. It was built in 1986, so it is 39 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 5 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 6 vehicles a day, roughly 2% of them trucks, projected to reach 9 by 2035. The structure is 92 ft (27.9 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesState Forest Road
CrossesBlackwater Creek
LocationSeminole State Forest Br
RouteState Lands Road 0
StateFlorida
Coordinates28.85755, -81.43687
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.3 US tons
Inventory rating38.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHL 93
Structure length92 ft (27.9 m)
Longest span45 ft (13.7 m)
Deck width20 ft (6.2 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6 (2001)
Projected traffic9 by 2035
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation 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 State Forest Road over Blackwater Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is State Forest Road over Blackwater Creek 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 2023.

How much traffic does State Forest Road over Blackwater Creek carry?

About 6 vehicles per day (2001 count), of which roughly 2% are trucks.

How long is State Forest Road over Blackwater Creek?

The structure is 92 ft (27.9 m) long with a longest span of 45 ft (13.7 m) and a deck 20 ft wide.

Who owns State Forest Road over Blackwater Creek?

It is owned by the State Park, Forest, or Reservation Agency.