US Bridges

CR-108 over I-95 (SR-9)

Good

Nassau County, Florida · CR-108 / I-95 · Structure no. 740062

Built
1968
57 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
256 ft
4 main spans
Daily traffic
4,100
2023 count
Owner
State
State Highway Agency

About this bridge

CR-108 over I-95 (SR-9) is a prestressed concrete stringer/multi-beam or girder carrying CR-108 over I-95 (SR-9) in Nassau County, Florida. It was built in 1968, so it is 57 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 4,100 vehicles a day, roughly 5% of them trucks, projected to reach 7,114 by 2045. The structure is 256 ft (78 m) long and 29 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

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CarriesCR-108
CrossesI-95 (SR-9)
LocationCR-108 / I-95
RouteCounty Highway 108
CountyNassau County
StateFlorida
Coordinates30.69056, -81.675
Functional classRural Major Collector

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.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.8 US tons
Inventory rating33.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length256 ft (78 m)
Longest span84 ft (25.6 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,100 (2023)
Projected traffic7,114 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed16.8 mi (27 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$642,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was CR-108 over I-95 (SR-9) built?

It was built in 1968, making it 57 years old in 2025.

What condition is CR-108 over I-95 (SR-9) 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 July 2024.

How much traffic does CR-108 over I-95 (SR-9) carry?

About 4,100 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is CR-108 over I-95 (SR-9)?

The structure is 256 ft (78 m) long with a longest span of 84 ft (25.6 m) and a deck 29 ft wide.

Who owns CR-108 over I-95 (SR-9)?

It is owned by the State Highway Agency.