US Bridges

Williamson Road over NS Rwy & Norfolk Ave

Fair

Roanoke city, Virginia · 0024581 0023221 · Structure no. 000000000021665

Built
1999
26 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
437 ft
5 main spans
Daily traffic
21,446
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Williamson Road over NS Rwy & Norfolk Ave is a steel stringer/multi-beam or girder carrying Williamson Road over NS Rwy & Norfolk Ave in Roanoke city, Virginia. It was built in 1999, so it is 26 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 21,446 vehicles a day, roughly 1% of them trucks, projected to reach 28,582 by 2042. The structure is 437 ft (133.1 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesWilliamson Road
CrossesNS Rwy & Norfolk Ave
Location0024581 0023221
RouteU.S. Route 11
CountyRoanoke city
StateVirginia
Coordinates37.27253, -79.93749
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5 (+1 approach)
Design loadHS 20
Structure length437 ft (133.1 m)
Longest span83 ft (25.2 m)
Deck width79 ft (24 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,446 (2022)
Projected traffic28,582 by 2042
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$251 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Williamson Road over NS Rwy & Norfolk Ave built?

It was built in 1999, making it 26 years old in 2025.

What condition is Williamson Road over NS Rwy & Norfolk Ave 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 October 2024.

How much traffic does Williamson Road over NS Rwy & Norfolk Ave carry?

About 21,446 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Williamson Road over NS Rwy & Norfolk Ave?

The structure is 437 ft (133.1 m) long with a longest span of 83 ft (25.2 m) and a deck 79 ft wide.

Who owns Williamson Road over NS Rwy & Norfolk Ave?

It is owned by the City or Municipal Highway Agency.