US Bridges

Route 646 Sbl over I-64

Fair

York County, Virginia · 1.52 MI to Route 60 · Structure no. 000000000019879

Built
1979
46 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
354 ft
4 main spans
Daily traffic
13,214
2022 count
Owner
State
State Highway Agency

About this bridge

Route 646 Sbl over I-64 is a steel stringer/multi-beam or girder carrying Route 646 Sbl over I-64 in York 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 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 13,214 vehicles a day, projected to reach 19,294 by 2042. The structure is 354 ft (107.9 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRoute 646 Sbl
CrossesI-64
Location1.52 MI to Route 60
RouteState Highway 646
CountyYork County
StateVirginia
Coordinates37.35251, -76.73195
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.1 US tons
Inventory rating53.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length354 ft (107.9 m)
Longest span130 ft (39.6 m)
Deck width52 ft (15.8 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,214 (2022)
Projected traffic19,294 by 2042
Trucks0%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 646 Sbl over I-64 built?

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

What condition is Route 646 Sbl over I-64 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 Route 646 Sbl over I-64 carry?

About 13,214 vehicles per day (2022 count).

How long is Route 646 Sbl over I-64?

The structure is 354 ft (107.9 m) long with a longest span of 130 ft (39.6 m) and a deck 52 ft wide.

Who owns Route 646 Sbl over I-64?

It is owned by the State Highway Agency.