US Bridges

Williamson RD./11 over Boxley Creek

Fair

Roanoke County, Virginia · 0.92-RTE117; 1.25-RTE118 · Structure no. 000000000014846

Built
1929
96 years old, rebuilt 1995
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
10,471
2022 count
Owner
State
State Highway Agency

About this bridge

Williamson RD./11 over Boxley Creek is a steel stringer/multi-beam or girder carrying Williamson RD./11 over Boxley Creek in Roanoke County, Virginia. It was built in 1929 and reconstructed in 1995, so it is 96 years old, older 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 10,471 vehicles a day, projected to reach 20,942 by 2044. The structure is 38 ft (11.6 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesWilliamson RD./11
CrossesBoxley Creek
Location0.92-RTE117; 1.25-RTE118
RouteU.S. Route 11
CountyRoanoke County
StateVirginia
Coordinates37.33384, -79.95471
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span38 ft (11.6 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,471 (2022)
Projected traffic20,942 by 2044
Trucks0%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$297 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Williamson RD./11 over Boxley Creek built?

It was built in 1929, making it 96 years old in 2025. It was reconstructed in 1995.

What condition is Williamson RD./11 over Boxley Creek 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 December 2023.

How much traffic does Williamson RD./11 over Boxley Creek carry?

About 10,471 vehicles per day (2022 count).

How long is Williamson RD./11 over Boxley Creek?

The structure is 38 ft (11.6 m) long with a longest span of 38 ft (11.6 m) and a deck 41 ft wide.

Who owns Williamson RD./11 over Boxley Creek?

It is owned by the State Highway Agency.