US Bridges

Cougartrail RD/643 over NS Railway

Fair

Pulaski County, Virginia · 0.50-RTE807; 0.20-RTE683 · Structure no. 000000000014576

Built
1975
50 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
132 ft
3 main spans
Daily traffic
6,045
2022 count
Owner
State
State Highway Agency

About this bridge

Cougartrail RD/643 over NS Railway is a steel stringer/multi-beam or girder carrying Cougartrail RD/643 over NS Railway in Pulaski County, Virginia. It was built in 1975, so it is 50 years old, younger 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 5 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 6,045 vehicles a day, roughly 1% of them trucks, projected to reach 6,573 by 2042. The structure is 132 ft (40.2 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCougartrail RD/643
CrossesNS Railway
Location0.50-RTE807; 0.20-RTE683
RouteCounty Highway 643
CountyPulaski County
StateVirginia
Coordinates37.08378, -80.7104
Functional classUrban 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating56 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length132 ft (40.2 m)
Longest span50 ft (15.2 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,045 (2022)
Projected traffic6,573 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cougartrail RD/643 over NS Railway built?

It was built in 1975, making it 50 years old in 2025.

What condition is Cougartrail RD/643 over NS Railway 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 June 2024.

How much traffic does Cougartrail RD/643 over NS Railway carry?

About 6,045 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Cougartrail RD/643 over NS Railway?

The structure is 132 ft (40.2 m) long with a longest span of 50 ft (15.2 m) and a deck 36 ft wide.

Who owns Cougartrail RD/643 over NS Railway?

It is owned by the State Highway Agency.