US Bridges

SR-100 over Grandin Canal

Fair

Putnam County, Florida · 0.5 Mi. E. of CR-315 · Structure no. 760025

Built
1964
61 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
7,200
2022 count
Owner
State
State Highway Agency

About this bridge

SR-100 over Grandin Canal is a concrete culvert carrying SR-100 over Grandin Canal in Putnam County, Florida. It was built in 1964, so it is 61 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 7,200 vehicles a day, roughly 14% of them trucks, projected to reach 12,492 by 2044. The structure is 26 ft (7.8 m) long. If it were closed, the detour would be 21.1 mi (34 km).

Location

Open in Google Maps
CarriesSR-100
CrossesGrandin Canal
Location0.5 Mi. E. of CR-315
RouteState Highway 100
CountyPutnam County
StateFlorida
Coordinates29.73083, -81.91124
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating39.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length26 ft (7.8 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,200 (2022)
Projected traffic12,492 by 2044
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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 SR-100 over Grandin Canal built?

It was built in 1964, making it 61 years old in 2025.

What condition is SR-100 over Grandin Canal 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 February 2024.

How much traffic does SR-100 over Grandin Canal carry?

About 7,200 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is SR-100 over Grandin Canal?

The structure is 26 ft (7.8 m) long with a longest span of 8 ft (2.4 m).

Who owns SR-100 over Grandin Canal?

It is owned by the State Highway Agency.