US Bridges

US-27 (SR-20) over Suwannee River Relief

Good

Lafayette County, Florida · 0.5 Mi. W. of Branford · Structure no. 330012

Built
1954
71 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
525 ft
35 main spans
Daily traffic
5,900
2022 count
Owner
State
State Highway Agency

About this bridge

US-27 (SR-20) over Suwannee River Relief is a concrete slab carrying US-27 (SR-20) over Suwannee River Relief in Lafayette County, Florida. It was built in 1954, so it is 71 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 5,900 vehicles a day, roughly 18% of them trucks, projected to reach 10,236 by 2044. The structure is 525 ft (160 m) long and 33 ft wide. If it were closed, the detour would be 54.1 mi (87 km).

CarriesUS-27 (SR-20)
CrossesSuwannee River Relief
Location0.5 Mi. W. of Branford
RouteU.S. Route 27
StateFlorida
Coordinates29.95212, -82.93856
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionMarch 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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.2 US tons
Inventory rating23.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans35
Design loadH 15
Structure length525 ft (160 m)
Longest span15 ft (4.6 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,900 (2022)
Projected traffic10,236 by 2044
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed54.1 mi (87 km)
TollOn a free road
National Highway SystemYes

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 US-27 (SR-20) over Suwannee River Relief built?

It was built in 1954, making it 71 years old in 2025.

What condition is US-27 (SR-20) over Suwannee River Relief 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 March 2024.

How much traffic does US-27 (SR-20) over Suwannee River Relief carry?

About 5,900 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is US-27 (SR-20) over Suwannee River Relief?

The structure is 525 ft (160 m) long with a longest span of 15 ft (4.6 m) and a deck 33 ft wide.

Who owns US-27 (SR-20) over Suwannee River Relief?

It is owned by the State Highway Agency.