US Bridges

US-ALT-17 (SR-15A) over Post St. & Csxrr

Fair

Duval County, Florida · US-17 / Post St. & Csxrr · Structure no. 720078

Built
1960
65 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
418 ft
7 main spans
Daily traffic
58,500
2023 count
Owner
State
State Highway Agency

About this bridge

US-ALT-17 (SR-15A) over Post St. & Csxrr is a prestressed concrete stringer/multi-beam or girder carrying US-ALT-17 (SR-15A) over Post St. & Csxrr in Duval County, Florida. It was built in 1960, so it is 65 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 58,500 vehicles a day, roughly 2% of them trucks, projected to reach 101,498 by 2045. The structure is 418 ft (127.4 m) long and 62 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesUS-ALT-17 (SR-15A)
CrossesPost St. & Csxrr
LocationUS-17 / Post St. & Csxrr
RouteU.S. Route 0A17
CountyDuval County
StateFlorida
Coordinates30.31364, -81.70403
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating35.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans7
Design loadH 20
Structure length418 ft (127.4 m)
Longest span73 ft (22.3 m)
Deck width62 ft (18.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58,500 (2023)
Projected traffic101,498 by 2045
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
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-17 (SR-15A) over Post St. & Csxrr built?

It was built in 1960, making it 65 years old in 2025.

What condition is US-ALT-17 (SR-15A) over Post St. & Csxrr 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 June 2024.

How much traffic does US-ALT-17 (SR-15A) over Post St. & Csxrr carry?

About 58,500 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is US-ALT-17 (SR-15A) over Post St. & Csxrr?

The structure is 418 ft (127.4 m) long with a longest span of 73 ft (22.3 m) and a deck 62 ft wide.

Who owns US-ALT-17 (SR-15A) over Post St. & Csxrr?

It is owned by the State Highway Agency.