US Bridges

Route 66 Wbl over Manassas Run & Rte. 647

Fair

Warren County, Virginia · 5.26 to 340 - 1.27 to 79 · Structure no. 000000000018734

Built
1979
46 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
340 ft
4 main spans
Daily traffic
19,246
2022 count
Owner
State
State Highway Agency

About this bridge

Route 66 Wbl over Manassas Run & Rte. 647 is a steel stringer/multi-beam or girder carrying Route 66 Wbl over Manassas Run & Rte. 647 in Warren County, Virginia. It was built in 1979, so it is 46 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 19,246 vehicles a day, roughly 17% of them trucks, projected to reach 23,442 by 2042. The structure is 340 ft (103.6 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoute 66 Wbl
CrossesManassas Run & Rte. 647
Location5.26 to 340 - 1.27 to 79
RouteInterstate 66
CountyWarren County
StateVirginia
Coordinates38.92015, -78.12392
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating87 US tons
Inventory rating67 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length340 ft (103.6 m)
Longest span90 ft (27.4 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,246 (2022)
Projected traffic23,442 by 2042
Trucks17%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Route 66 Wbl over Manassas Run & Rte. 647 built?

It was built in 1979, making it 46 years old in 2025.

What condition is Route 66 Wbl over Manassas Run & Rte. 647 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 May 2024.

How much traffic does Route 66 Wbl over Manassas Run & Rte. 647 carry?

About 19,246 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Route 66 Wbl over Manassas Run & Rte. 647?

The structure is 340 ft (103.6 m) long with a longest span of 90 ft (27.4 m) and a deck 44 ft wide.

Who owns Route 66 Wbl over Manassas Run & Rte. 647?

It is owned by the State Highway Agency.