US Bridges

Mill Swamp Road over Passenger Swamp

Good

Isle of Wight County, Virginia · 0.1 Mile from RTE 680 · Structure no. 000000000029859

Built
2016
9 years old
Condition
Good
inspected November 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
78 ft
1 main span
Daily traffic
239
2022 count
Owner
State
State Highway Agency

About this bridge

Mill Swamp Road over Passenger Swamp is a prestressed concrete box beam or girders - multiple carrying Mill Swamp Road over Passenger Swamp in Isle of Wight County, Virginia. It was built in 2016, so it is 9 years old, younger than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 239 vehicles a day, roughly 5% of them trucks, projected to reach 266 by 2042. The structure is 78 ft (23.8 m) long and 25 ft wide.

CarriesMill Swamp Road
CrossesPassenger Swamp
Location0.1 Mile from RTE 680
RouteCounty Highway 621
Coordinates37.00181, -76.77402
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating74.1 US tons
Inventory rating57.2 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length78 ft (23.8 m)
Longest span78 ft (23.8 m)
Deck width25 ft (7.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic239 (2022)
Projected traffic266 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 Mill Swamp Road over Passenger Swamp built?

It was built in 2016, making it 9 years old in 2025.

What condition is Mill Swamp Road over Passenger Swamp 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 2024.

How much traffic does Mill Swamp Road over Passenger Swamp carry?

About 239 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Mill Swamp Road over Passenger Swamp?

The structure is 78 ft (23.8 m) long with a longest span of 78 ft (23.8 m) and a deck 25 ft wide.

Who owns Mill Swamp Road over Passenger Swamp?

It is owned by the State Highway Agency.