US Bridges

Mill Swamp Road over Mill Swamp

Fair

Isle of Wight County, Virginia · 0.25 Miles from RTE 623 E · Structure no. 000000000010403

Built
1952
73 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
69 ft
2 main spans
Daily traffic
239
2022 count
Owner
State
State Highway Agency

About this bridge

Mill Swamp Road over Mill Swamp is a steel stringer/multi-beam or girder carrying Mill Swamp Road over Mill Swamp in Isle of Wight County, Virginia. It was built in 1952, so it is 73 years old, older than the Virginia average of 50.7 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 239 vehicles a day, roughly 5% of them trucks, projected to reach 266 by 2042. The structure is 69 ft (20.9 m) long and 21 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesMill Swamp Road
CrossesMill Swamp
Location0.25 Miles from RTE 623 E
RouteCounty Highway 621
CountyIsle of Wight County
StateVirginia
Coordinates36.99055, -76.80918
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.1 US tons
Inventory rating36.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans2
Design loadHS 20
Structure length69 ft (20.9 m)
Longest span37 ft (11.4 m)
Deck width21 ft (6.5 m)
Roadway width19 ft (5.9 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 closed6.8 mi (11 km)
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$147 million (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mill Swamp Road over Mill Swamp built?

It was built in 1952, making it 73 years old in 2025.

What condition is Mill Swamp Road over Mill Swamp 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 August 2024.

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

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

How long is Mill Swamp Road over Mill Swamp?

The structure is 69 ft (20.9 m) long with a longest span of 37 ft (11.4 m) and a deck 21 ft wide.

Who owns Mill Swamp Road over Mill Swamp?

It is owned by the State Highway Agency.