US Bridges

US-ALT-1 (SR-115) over 11th St.

Fair

Duval County, Florida · US-A-1(SR-115) / 11th St. · Structure no. 720132

Built
1970
55 years old, rebuilt 2000
Condition
Fair
inspected August 2023
Type
Slab
Concrete Continuous
Length
156 ft
3 main spans
Daily traffic
45,500
2022 count
Owner
State
State Highway Agency

About this bridge

US-ALT-1 (SR-115) over 11th St. is a concrete continuous slab carrying US-ALT-1 (SR-115) over 11th St. in Duval County, Florida. It was built in 1970 and reconstructed in 2000, 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 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 45,500 vehicles a day, roughly 13% of them trucks, projected to reach 78,942 by 2044. The structure is 156 ft (47.5 m) long and 84 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesUS-ALT-1 (SR-115)
Crosses11th St.
LocationUS-A-1(SR-115) / 11th St.
RouteU.S. Route 0A1
CountyDuval County
StateFlorida
Coordinates30.3493, -81.63684
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.4 US tons
Inventory rating33.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length156 ft (47.5 m)
Longest span73 ft (22.3 m)
Deck width84 ft (25.6 m)
Roadway width79 ft (24.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,500 (2022)
Projected traffic78,942 by 2044
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-ALT-1 (SR-115) over 11th St. built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2000.

What condition is US-ALT-1 (SR-115) over 11th St. 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 August 2023.

How much traffic does US-ALT-1 (SR-115) over 11th St. carry?

About 45,500 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is US-ALT-1 (SR-115) over 11th St.?

The structure is 156 ft (47.5 m) long with a longest span of 73 ft (22.3 m) and a deck 84 ft wide.

Who owns US-ALT-1 (SR-115) over 11th St.?

It is owned by the State Highway Agency.