Structure 764024 · Putnam County, FL

Old San Mateo Road over Mill Branch

Carries Old San Mateo Road over Mill Branch, 0.1 Mi E Of SR 207.

Overall conditionGood

Set by its lowest-rated component: Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT103 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

103 ft end to end, longest span 26 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built1916rebuilt 2002
Length102.7 ft31.3 m
Daily traffic511counted 2023
Last inspectedFebruary 2025every 24 months

Location

StateFlorida
CountyPutnam
Location0.1 Mi E Of SR 207
CarriesOld San Mateo Road
CrossesMill Branch
Coordinates29.64694, -81.59306

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length102.7 ft (31.3 m)
Max Span25.6 ft (7.8 m)
Deck Width18.0 ft (5.5 m)
Deck Area172.2 sq m
Main Spans4
Year Built1916 (reconstructed 2002)

Traffic

Avg Daily Traffic511 (2023)
Truck Traffic10%
Lanes On Bridge1

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour CriticalUnknown
Structure Number764024

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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