US Bridges

SR-105 NB over San Carlos Creek

Good

Duval County, Florida · SR-105 Nb/San Carlos Crk. · Structure no. 720568

Built
1994
31 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
870 ft
11 main spans
Daily traffic
19,100
2023 count
Owner
State
State Highway Agency

About this bridge

SR-105 NB over San Carlos Creek is a prestressed concrete stringer/multi-beam or girder carrying SR-105 NB over San Carlos Creek in Duval County, Florida. It was built in 1994, so it is 31 years old, younger 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 19,100 vehicles a day, roughly 17% of them trucks, projected to reach 33,139 by 2045. The structure is 870 ft (265.2 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR-105 NB
CrossesSan Carlos Creek
LocationSR-105 Nb/San Carlos Crk.
RouteState Highway 105
StateFlorida
Coordinates30.41206, -81.54864
Functional classUrban Minor Arterial

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 inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.4 US tons
Inventory rating39.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20 + Mod
Structure length870 ft (265.2 m)
Longest span105 ft (32 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,100 (2023)
Projected traffic33,139 by 2045
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkSTRAHNET connector

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 SR-105 NB over San Carlos Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is SR-105 NB over San Carlos Creek 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 September 2024.

How much traffic does SR-105 NB over San Carlos Creek carry?

About 19,100 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is SR-105 NB over San Carlos Creek?

The structure is 870 ft (265.2 m) long with a longest span of 105 ft (32 m) and a deck 43 ft wide.

Who owns SR-105 NB over San Carlos Creek?

It is owned by the State Highway Agency.