US Bridges

Silver Lake Road over Unnamed Branch

Fair

Leon County, Florida · 1.8 Miles South of SR 20 · Structure no. 554027

Built
1970
55 years old
Condition
Fair
inspected August 2024
Type
Culvert
Steel
Length
23 ft
3 main spans
Daily traffic
5,500
2023 count
Owner
County
County Highway Agency

About this bridge

Silver Lake Road over Unnamed Branch is a steel culvert carrying Silver Lake Road over Unnamed Branch in Leon County, Florida. It was built in 1970, so it is 55 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.

It carries about 5,500 vehicles a day, roughly 8% of them trucks, projected to reach 6,050 by 2043. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSilver Lake Road
CrossesUnnamed Branch
Location1.8 Miles South of SR 20
RouteCounty Highway 0
CountyLeon County
StateFlorida
Coordinates30.41912, -84.41765
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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length23 ft (6.9 m)
Longest span9 ft (2.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2023)
Projected traffic6,050 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Silver Lake Road over Unnamed Branch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Silver Lake Road over Unnamed Branch 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 2024.

How much traffic does Silver Lake Road over Unnamed Branch carry?

About 5,500 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Silver Lake Road over Unnamed Branch?

The structure is 23 ft (6.9 m) long with a longest span of 9 ft (2.6 m).

Who owns Silver Lake Road over Unnamed Branch?

It is owned by the County Highway Agency.