US Bridges

US-1 over Unsigned Creek

Good

Volusia County, Florida · 1.4 MI N of SR-40 · Structure no. 790119

Built
1932
93 years old, rebuilt 1981
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
19,500
2022 count
Owner
State
State Highway Agency

About this bridge

US-1 over Unsigned Creek is a concrete culvert carrying US-1 over Unsigned Creek in Volusia County, Florida. It was built in 1932 and reconstructed in 1981, so it is 93 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 19,500 vehicles a day, roughly 11% of them trucks, projected to reach 33,832 by 2044. The structure is 20 ft (6.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS-1
CrossesUnsigned Creek
Location1.4 MI N of SR-40
RouteU.S. Route 1
StateFlorida
Coordinates29.29608, -81.07959
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.2 US tons
Inventory rating55.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length20 ft (6.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,500 (2022)
Projected traffic33,832 by 2044
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US-1 over Unsigned Creek built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1981.

What condition is US-1 over Unsigned 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 June 2023.

How much traffic does US-1 over Unsigned Creek carry?

About 19,500 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is US-1 over Unsigned Creek?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m).

Who owns US-1 over Unsigned Creek?

It is owned by the State Highway Agency.