US Bridges

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

Good

Duval County, Florida · 0.3 Mi.N.Of Gate Parkway · Structure no. 720610

Built
1997
28 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
52 ft
4 main spans
Daily traffic
137,000
2022 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 137,000 vehicles a day, roughly 13% of them trucks, projected to reach 237,695 by 2042. The structure is 52 ft (15.8 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
Location0.3 Mi.N.Of Gate Parkway
RouteState Highway 295
CountyDuval County
StateFlorida
Coordinates30.24028, -81.51444
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.8 US tons
Inventory rating46.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic137,000 (2022)
Projected traffic237,695 by 2042
Trucks13%
Lanes on structure15
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 good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

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

About 137,000 vehicles per day (2022 count), of which roughly 13% are trucks.

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

The structure is 52 ft (15.8 m) long with a longest span of 12 ft (3.7 m).

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

It is owned by the State Highway Agency.