US Bridges

US-129 (SR-49) over Santa Fe River

Fair

Gilchrist County, Florida · 1.2 Mi. N. of CR-138 · Structure no. 310005

Built
1939
86 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
480 ft
11 main spans
Daily traffic
3,800
2023 count
Owner
State
State Highway Agency

About this bridge

US-129 (SR-49) over Santa Fe River is a steel stringer/multi-beam or girder carrying US-129 (SR-49) over Santa Fe River in Gilchrist County, Florida. It was built in 1939, so it is 86 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 3,800 vehicles a day, roughly 11% of them trucks, projected to reach 6,593 by 2045. The structure is 480 ft (146.3 m) long and 27 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesUS-129 (SR-49)
CrossesSanta Fe River
Location1.2 Mi. N. of CR-138
RouteU.S. Route 129
CountyGilchrist County
StateFlorida
Coordinates29.91172, -82.86007
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans11
Design loadH 15
Structure length480 ft (146.3 m)
Longest span70 ft (21.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2023)
Projected traffic6,593 by 2045
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US-129 (SR-49) over Santa Fe River built?

It was built in 1939, making it 86 years old in 2025.

What condition is US-129 (SR-49) over Santa Fe River 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 December 2024.

How much traffic does US-129 (SR-49) over Santa Fe River carry?

About 3,800 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is US-129 (SR-49) over Santa Fe River?

The structure is 480 ft (146.3 m) long with a longest span of 70 ft (21.3 m) and a deck 27 ft wide.

Who owns US-129 (SR-49) over Santa Fe River?

It is owned by the State Highway Agency.