US Bridges

Hill Road over Little Mills Creek

FairPosted for load

Nassau County, Florida · 0.1 MI N of Roberts RD · Structure no. 744006

Built
1931
94 years old, rebuilt 1982
Condition
Fair
inspected June 2024
Type
Slab
Wood or Timber
Length
40 ft
2 main spans
Daily traffic
31
2024 count
Owner
County
County Highway Agency

About this bridge

Hill Road over Little Mills Creek is a wood or timber slab carrying Hill Road over Little Mills Creek in Nassau County, Florida. It was built in 1931 and reconstructed in 1982, so it is 94 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 31 vehicles a day, projected to reach 54 by 2046. The structure is 40 ft (12.2 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesHill Road
CrossesLittle Mills Creek
Location0.1 MI N of Roberts RD
RouteCounty Highway 0
StateFlorida
Coordinates30.57789, -81.837
Functional classRural Local

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55.4 US tons
Inventory rating42.8 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span20 ft (6.1 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31 (2024)
Projected traffic54 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$22,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Hill Road over Little Mills Creek built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1982.

What condition is Hill Road 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 Hill Road over Little Mills Creek carry?

About 31 vehicles per day (2024 count).

How long is Hill Road over Little Mills Creek?

The structure is 40 ft (12.2 m) long with a longest span of 20 ft (6.1 m) and a deck 24 ft wide.

Who owns Hill Road over Little Mills Creek?

It is owned by the County Highway Agency.