US Bridges

SR-115 over Cushing Creek

Fair

Nassau County, Florida · 0.5 Mi. E. of Callahan · Structure no. 740043

Built
1948
77 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
105 ft
7 main spans
Daily traffic
9,300
2022 count
Owner
State
State Highway Agency

About this bridge

SR-115 over Cushing Creek is a concrete slab carrying SR-115 over Cushing Creek in Nassau County, Florida. It was built in 1948, so it is 77 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 9,300 vehicles a day, roughly 8% of them trucks, projected to reach 16,136 by 2044. The structure is 105 ft (32 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR-115
CrossesCushing Creek
Location0.5 Mi. E. of Callahan
RouteState Highway 115
CountyNassau County
StateFlorida
Coordinates30.55991, -81.81947
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating36 US tons
Inventory rating20.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length105 ft (32 m)
Longest span15 ft (4.6 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,300 (2022)
Projected traffic16,136 by 2044
Trucks8%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$215,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR-115 over Cushing Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is SR-115 over Cushing 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 April 2023.

How much traffic does SR-115 over Cushing Creek carry?

About 9,300 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is SR-115 over Cushing Creek?

The structure is 105 ft (32 m) long with a longest span of 15 ft (4.6 m) and a deck 31 ft wide.

Who owns SR-115 over Cushing Creek?

It is owned by the State Highway Agency.