US Bridges

SR-121 over Turkey Creek

Good

Baker County, Florida · 0.7 Mi. N. of I-10 · Structure no. 270006

Built
1970
55 years old, rebuilt 2003
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
176 ft
4 main spans
Daily traffic
11,100
2022 count
Owner
State
State Highway Agency

About this bridge

SR-121 over Turkey Creek is a prestressed concrete stringer/multi-beam or girder carrying SR-121 over Turkey Creek in Baker County, Florida. It was built in 1970 and reconstructed in 2003, 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 11,100 vehicles a day, roughly 11% of them trucks, projected to reach 19,258 by 2044. The structure is 176 ft (53.5 m) long and 90 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSR-121
CrossesTurkey Creek
Location0.7 Mi. N. of I-10
RouteState Highway 121
CountyBaker County
StateFlorida
Coordinates30.26889, -82.1225
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.8 US tons
Inventory rating43.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length176 ft (53.5 m)
Longest span44 ft (13.4 m)
Deck width90 ft (27.3 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,100 (2022)
Projected traffic19,258 by 2044
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR-121 over Turkey Creek built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2003.

What condition is SR-121 over Turkey Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does SR-121 over Turkey Creek carry?

About 11,100 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is SR-121 over Turkey Creek?

The structure is 176 ft (53.5 m) long with a longest span of 44 ft (13.4 m) and a deck 90 ft wide.

Who owns SR-121 over Turkey Creek?

It is owned by the State Highway Agency.