US Bridges

Ferrum Mtn RD 602 over S. Prong of Pigg River

Fair

Franklin County, Virginia · 0.00 Rt 640; 1.70 Rt 748 · Structure no. 000000000007809

Built
1932
93 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
31 ft
1 main span
Daily traffic
463
2022 count
Owner
State
State Highway Agency

About this bridge

Ferrum Mtn RD 602 over S. Prong of Pigg River is a steel stringer/multi-beam or girder carrying Ferrum Mtn RD 602 over S. Prong of Pigg River in Franklin County, Virginia. It was built in 1932, so it is 93 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 463 vehicles a day, projected to reach 676 by 2042. The structure is 31 ft (9.4 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesFerrum Mtn RD 602
CrossesS. Prong of Pigg River
Location0.00 Rt 640; 1.70 Rt 748
RouteCounty Highway 602
CountyFranklin County
StateVirginia
Coordinates36.9733, -80.05055
Functional classRural Major 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating88 US tons
Inventory rating68 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHL 93
Structure length31 ft (9.4 m)
Longest span29 ft (8.8 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic463 (2022)
Projected traffic676 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ferrum Mtn RD 602 over S. Prong of Pigg River built?

It was built in 1932, making it 93 years old in 2025.

What condition is Ferrum Mtn RD 602 over S. Prong of Pigg River 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 March 2024.

How much traffic does Ferrum Mtn RD 602 over S. Prong of Pigg River carry?

About 463 vehicles per day (2022 count).

How long is Ferrum Mtn RD 602 over S. Prong of Pigg River?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.8 m) and a deck 24 ft wide.

Who owns Ferrum Mtn RD 602 over S. Prong of Pigg River?

It is owned by the State Highway Agency.