US Bridges

SR-100 over New River

Fair

Union County, Florida · 0.4 Mi. W. of CR-235 · Structure no. 390001

Built
1930
95 years old, rebuilt 1966
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
782 ft
24 main spans
Daily traffic
6,300
2023 count
Owner
State
State Highway Agency

About this bridge

SR-100 over New River is a concrete tee beam carrying SR-100 over New River in Union County, Florida. It was built in 1930 and reconstructed in 1966, so it is 95 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 6,300 vehicles a day, roughly 15% of them trucks, projected to reach 10,930 by 2045. The structure is 782 ft (238.4 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR-100
CrossesNew River
Location0.4 Mi. W. of CR-235
RouteState Highway 100
CountyUnion County
StateFlorida
Coordinates29.99843, -82.27421
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.9 US tons
Inventory rating31 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans24
Design loadH 20
Structure length782 ft (238.4 m)
Longest span33 ft (10.1 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,300 (2023)
Projected traffic10,930 by 2045
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR-100 over New River built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1966.

What condition is SR-100 over New River 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 August 2024.

How much traffic does SR-100 over New River carry?

About 6,300 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is SR-100 over New River?

The structure is 782 ft (238.4 m) long with a longest span of 33 ft (10.1 m) and a deck 35 ft wide.

Who owns SR-100 over New River?

It is owned by the State Highway Agency.