US Bridges

CR 115 over Little Mills Creek

Fair

Nassau County, Florida · 2.3 MI NW of US 1 · Structure no. 740073

Built
1938
87 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
4,700
2024 count
Owner
County
County Highway Agency

About this bridge

CR 115 over Little Mills Creek is a concrete culvert carrying CR 115 over Little Mills Creek in Nassau County, Florida. It was built in 1938, so it is 87 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 4,700 vehicles a day, roughly 5% of them trucks, projected to reach 8,155 by 2046. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCR 115
CrossesLittle Mills Creek
Location2.3 MI NW of US 1
RouteCounty Highway 115
StateFlorida
Coordinates30.59161, -81.86097
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.4 US tons
Inventory rating44.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.3 m)
Longest span10 ft (3.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2024)
Projected traffic8,155 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 115 over Little Mills Creek built?

It was built in 1938, making it 87 years old in 2025.

What condition is CR 115 over Little Mills 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 June 2024.

How much traffic does CR 115 over Little Mills Creek carry?

About 4,700 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is CR 115 over Little Mills Creek?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3.1 m).

Who owns CR 115 over Little Mills Creek?

It is owned by the County Highway Agency.