US Bridges

I-295 (SR-9A) over Mill Dam Branch

Fair

Duval County, Florida · 0.1 Mi.S.Of Gate Parkway · Structure no. 720609

Built
1997
28 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
62 ft
4 main spans
Daily traffic
133,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-295 (SR-9A) over Mill Dam Branch is a concrete culvert carrying I-295 (SR-9A) over Mill Dam Branch in Duval County, Florida. It was built in 1997, so it is 28 years old, younger 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 133,000 vehicles a day, roughly 13% of them trucks, projected to reach 230,755 by 2045. The structure is 62 ft (19 m) long. If it were closed, the detour would be 5.6 mi (9 km).

Location

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CarriesI-295 (SR-9A)
CrossesMill Dam Branch
Location0.1 Mi.S.Of Gate Parkway
RouteInterstate 295
CountyDuval County
StateFlorida
Coordinates30.235, -81.51444
Functional classUrban Principal Arterial - Interstate

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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 rating110.1 US tons
Inventory rating59.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length62 ft (19 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic133,000 (2023)
Projected traffic230,755 by 2045
Trucks13%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-295 (SR-9A) over Mill Dam Branch built?

It was built in 1997, making it 28 years old in 2025.

What condition is I-295 (SR-9A) over Mill Dam Branch 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 April 2024.

How much traffic does I-295 (SR-9A) over Mill Dam Branch carry?

About 133,000 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is I-295 (SR-9A) over Mill Dam Branch?

The structure is 62 ft (19 m) long with a longest span of 12 ft (3.6 m).

Who owns I-295 (SR-9A) over Mill Dam Branch?

It is owned by the State Highway Agency.