US Bridges

Harley Thrift Road over Mt Zion Creek

FairPosted for load

Baker County, Florida · 0.6 MI West of SR 121 · Structure no. 274128

Built
1970
55 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
37 ft
3 main spans
Daily traffic
71
2023 count
Owner
County
County Highway Agency

About this bridge

Harley Thrift Road over Mt Zion Creek is a concrete slab carrying Harley Thrift Road over Mt Zion Creek in Baker 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. Its operating status is: posted for load restriction.

It carries about 71 vehicles a day, roughly 2% of them trucks, projected to reach 123 by 2042. The structure is 37 ft (11.4 m) long and 12 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesHarley Thrift Road
CrossesMt Zion Creek
Location0.6 MI West of SR 121
RouteCounty Highway 0
CountyBaker County
StateFlorida
Coordinates30.34083, -82.13611
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
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 alignment6: Equal to present minimum criteria
Operating rating24.1 US tons
Inventory rating18.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadUnknown
Structure length37 ft (11.4 m)
Longest span12 ft (3.8 m)
Deck width12 ft (3.8 m)
Roadway width11 ft (3.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic71 (2023)
Projected traffic123 by 2042
Trucks2%
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$242,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Harley Thrift Road over Mt Zion Creek built?

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

What condition is Harley Thrift Road over Mt Zion 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 Harley Thrift Road over Mt Zion Creek carry?

About 71 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Harley Thrift Road over Mt Zion Creek?

The structure is 37 ft (11.4 m) long with a longest span of 12 ft (3.8 m) and a deck 12 ft wide.

Who owns Harley Thrift Road over Mt Zion Creek?

It is owned by the County Highway Agency.