US Bridges

SR-21 over Lake Melrose Creek

Fair

Putnam County, Florida · 1.3 Mi. S. of SR-26 · Structure no. 760034

Built
1932
93 years old, rebuilt 1965
Condition
Fair
inspected October 2023
Type
Culvert
Other
Length
54 ft
3 main spans
Daily traffic
3,800
2022 count
Owner
State
State Highway Agency

About this bridge

SR-21 over Lake Melrose Creek is a other culvert carrying SR-21 over Lake Melrose Creek in Putnam County, Florida. It was built in 1932 and reconstructed in 1965, 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 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.

It carries about 3,800 vehicles a day, roughly 8% of them trucks, projected to reach 6,593 by 2044. The structure is 54 ft (16.5 m) long. If it were closed, the detour would be 11.2 mi (18 km).

Location

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CarriesSR-21
CrossesLake Melrose Creek
Location1.3 Mi. S. of SR-26
RouteState Highway 21
CountyPutnam County
StateFlorida
Coordinates29.69213, -82.03986
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating54 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialOther
DeckNot applicable
Main spans3
Design loadH 20
Structure length54 ft (16.5 m)
Longest span16 ft (5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2022)
Projected traffic6,593 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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-21 over Lake Melrose Creek built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1965.

What condition is SR-21 over Lake Melrose 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 October 2023.

How much traffic does SR-21 over Lake Melrose Creek carry?

About 3,800 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is SR-21 over Lake Melrose Creek?

The structure is 54 ft (16.5 m) long with a longest span of 16 ft (5 m).

Who owns SR-21 over Lake Melrose Creek?

It is owned by the State Highway Agency.