US Bridges

Lee HWY Nbl / 11 over Thornspring Branch

Fair

Pulaski County, Virginia · 3.12-RTE 100; 3.89-RTE 99 · Structure no. 000000000014456

Built
1932
93 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
5,888
2022 count
Owner
State
State Highway Agency

About this bridge

Lee HWY Nbl / 11 over Thornspring Branch is a concrete culvert carrying Lee HWY Nbl / 11 over Thornspring Branch in Pulaski County, Virginia. It was built in 1932, so it is 93 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 5,888 vehicles a day, projected to reach 8,598 by 2045. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLee HWY Nbl / 11
CrossesThornspring Branch
Location3.12-RTE 100; 3.89-RTE 99
RouteU.S. Route 11
CountyPulaski County
StateVirginia
Coordinates37.09143, -80.74249
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,888 (2022)
Projected traffic8,598 by 2045
Trucks0%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lee HWY Nbl / 11 over Thornspring Branch built?

It was built in 1932, making it 93 years old in 2025.

What condition is Lee HWY Nbl / 11 over Thornspring Branch 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 January 2025.

How much traffic does Lee HWY Nbl / 11 over Thornspring Branch carry?

About 5,888 vehicles per day (2022 count).

How long is Lee HWY Nbl / 11 over Thornspring Branch?

The structure is 22 ft (6.7 m) long with a longest span of 8 ft (2.4 m).

Who owns Lee HWY Nbl / 11 over Thornspring Branch?

It is owned by the State Highway Agency.