US Bridges

Twn Cntr Pkwy WB over Mill Dam Branch

Good

Duval County, Florida · 0.4 MI W of ST Johns Blf · Structure no. 724204

Built
2004
21 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
181 ft
2 main spans
Daily traffic
42,500
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Twn Cntr Pkwy WB over Mill Dam Branch is a prestressed concrete stringer/multi-beam or girder carrying Twn Cntr Pkwy WB over Mill Dam Branch in Duval County, Florida. It was built in 2004, so it is 21 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 42,500 vehicles a day, roughly 2% of them trucks, projected to reach 73,738 by 2042. The structure is 181 ft (55.1 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesTwn Cntr Pkwy WB
CrossesMill Dam Branch
Location0.4 MI W of ST Johns Blf
RouteCity Street 0
StateFlorida
Coordinates30.26708, -81.52564
Functional classUrban Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.9 US tons
Inventory rating44.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length181 ft (55.1 m)
Longest span92 ft (28.1 m)
Deck width54 ft (16.5 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic42,500 (2023)
Projected traffic73,738 by 2042
Trucks2%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Twn Cntr Pkwy WB over Mill Dam Branch built?

It was built in 2004, making it 21 years old in 2025.

What condition is Twn Cntr Pkwy WB 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 November 2023.

How much traffic does Twn Cntr Pkwy WB over Mill Dam Branch carry?

About 42,500 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Twn Cntr Pkwy WB over Mill Dam Branch?

The structure is 181 ft (55.1 m) long with a longest span of 92 ft (28.1 m) and a deck 54 ft wide.

Who owns Twn Cntr Pkwy WB over Mill Dam Branch?

It is owned by the City or Municipal Highway Agency.