US Bridges

COUGARTRAILRD./643 over Streamather Branch

Good

Pulaski County, Virginia · 0.05-RTE11; 0.03-RTE638 · Structure no. 000000000014575

Built
1974
51 years old
Condition
Good
inspected January 2024
Type
Culvert
Steel
Length
21 ft
3 main spans
Daily traffic
6,045
2022 count
Owner
State
State Highway Agency

About this bridge

COUGARTRAILRD./643 over Streamather Branch is a steel culvert carrying COUGARTRAILRD./643 over Streamather Branch in Pulaski County, Virginia. It was built in 1974, so it is 51 years old, older 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 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 6,045 vehicles a day, roughly 1% of them trucks, projected to reach 6,573 by 2042. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCOUGARTRAILRD./643
CrossesStreamather Branch
Location0.05-RTE11; 0.03-RTE638
RouteCounty Highway 643
Coordinates37.09855, -80.72029
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span6 ft (1.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 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
CrossesWaterway
Detour if closed1.9 mi (3 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 COUGARTRAILRD./643 over Streamather Branch built?

It was built in 1974, making it 51 years old in 2025.

What condition is COUGARTRAILRD./643 over Streamather 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 January 2024.

How much traffic does COUGARTRAILRD./643 over Streamather Branch carry?

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

How long is COUGARTRAILRD./643 over Streamather Branch?

The structure is 21 ft (6.4 m) long with a longest span of 6 ft (1.7 m).

Who owns COUGARTRAILRD./643 over Streamather Branch?

It is owned by the State Highway Agency.