US Bridges

SR-121 over Rocky Creek

Fair

Alachua County, Florida · 0.7 Mi. N. of SR-235 · Structure no. 260023

Built
1973
52 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
4,500
2022 count
Owner
State
State Highway Agency

About this bridge

SR-121 over Rocky Creek is a concrete culvert carrying SR-121 over Rocky Creek in Alachua County, Florida. It was built in 1973, so it is 52 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 6 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 4,500 vehicles a day, roughly 7% of them trucks, projected to reach 7,808 by 2044. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesSR-121
CrossesRocky Creek
Location0.7 Mi. N. of SR-235
RouteState Highway 121
CountyAlachua County
StateFlorida
Coordinates29.85417, -82.40501
Functional classRural Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.2 US tons
Inventory rating56.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length40 ft (12.2 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,500 (2022)
Projected traffic7,808 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Rocky Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is SR-121 over Rocky 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 July 2023.

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

About 4,500 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is SR-121 over Rocky Creek?

The structure is 40 ft (12.2 m) long with a longest span of 9 ft (2.7 m).

Who owns SR-121 over Rocky Creek?

It is owned by the State Highway Agency.